Service manual

ManualsBrandsDaewoo ManualsHome Theater SystemDR-C922B

S/M No. : VCR9ADPEN0

✔ Caution :

In this Manual, some parts can be changed for improving, their perfor-

mance without notice in the parts list. So, if you need the latest parts

information,please refer to PPL(Parts Price List) in Service Information

Center (http://svc.dwe.co.kr).

DAEWOO ELECTRONICS Corp.

Jan., 2004

http : //svc.dwe.co.kr

Service Manual

DVD COMBO RECEIVER

MODEL :

DR-C912B/913B

DR-C922B/923B

VCR/REC DVD/P.SCAN

VCR DVD AM/FM CH/PRESET+

REC P.SCAN SOUND FIELD CH/PRESET—

MIN MAX

PHONES

VIDEO/REC

REW

TUNING

DVD/P-SCAN

VCR DVD AM/FM CH/PRESET+

REC P.SCAN SOUND FIELD CH/PRESET—

MIN MAX

PHONES

Summary of content (132 pages)

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S/M No. : VCR9ADPEN0 Service Manual DVD COMBO RECEIVER MODEL : DR-C912B/913B DR-C922B/923B MIN VIDEO/REC R DVD/P-SCAN VCR DVD AM/FM CH/PRESET+ SOUND FIELD CH/PRESET— MAX L REW FF TUNING SEARCH REC P.SCAN PHONES VCR VCR/REC DVD AM/FM CH/PRESET+ SOUND FIELD CH/PRESET— DVD/P.SCAN MIN REC R L P.SCAN MAX PHONES ✔ Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list.
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CONTENTS Page Number SPECIFICATIONS .....................................................................1 CLEANING AND LUBRICATION...........................................1 TEST EQUIPMENT REQUIREMENTS ...................................2 THE SERVICE FIXTURE .........................................................2 PATH FIXTURE CONNECTION/ TEST POINT IDENTIFICATION ........................................3 LEADLESS (CHIP) COMPONENT REMOVAL INSTRUCTION................................................
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SPECIFICATIONS Power Input :120 Volts AC 60Hz Power Consumption :95Watts Operating Temperature :5 degree C to 35 degree C ( 41 degree F to 95 degree F) Storage Temperature : -30 degree C to 65 degree C (-22 degree F to 149 degree F) Installation condition :Horizontal / Relative humidity under 80% Weight : 6.45 kg (NET) Dimensions : 430mm Wide X 91mm High X 355.5mm Deep Recording System 4-head Hi Fi audio Input Audio output (common use of DVD and VCR) : -8.
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TEST EQUIPMENT REQUIREMENTS AC Millivolt Meter Sensitivity: 1.0mVAC–400VAC NTSC Video Signal Generator–Must provide 1V p-p negative sync video across a 75 ohm load and produce standard NTSC 75% saturated color bars with a 100% white window. Dual-Trace Triggered Oscilloscope–with Lo–Cap (X10) and Direct Probes. Response: DC–20MHz Sensitivity: 5mV/div. Max. Sweep Rate: 0.1µsec./div. DC Power Supply Range: 0-50V, 2A well filtered.
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PATH FIXTURE CONNECTION/TEST POINT IDENTIFICATION Refer to the adjustment of the tape transporting system. ! ^ Connect to PT01 !pin-^pin of the MAIN CIRCUIT BOARD. GND CTL pulse test point S/W pulse test point ENVE pulse test point LEADLESS (CHIP) COMPONENT REMOVAL INSTRUCTION • The following procedures are recommended for the replacement of the leadless components used in this unit. 1. Preparation for replacement 2.
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PATH FIXTURE CONNECTION/TEST POINT IDENTIFICATION 3. Installing the Leadless (chip) Component 4. Removing of Flat ICs(Recommended procedure) 1) Presolder the contact points of the circuit board. 1) For removing solder chips from IC's pins, use a solder remover or a wiry solder absorber. 2) Heat the IC's tips evenly by moving the chip IC replacing tool around them, and detach the IC's leads with a tool in the way of using a lever.
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LEADLESS (CHIP) COMPONENT IDENTIFICATION 1. Check the followings before S.M.D Troubleshooting • Cracked or Chipped Component Body • Cracked or Separated Solder Joints • Peeling end Terminations or Fractured Leads • Rejection of Solder from Copper Pads or Component • Foreign Matter on Copper Pads • Solder Bridges 2. S. M.
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ABBREVIATIONS A A or AUD A.E.
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ABBREVIATIONS PIC PIF PLL PS PWM PWR : Picture : Picture Intermediate Frequency : Phase Locked Loop : Phase Shift : Pulse Width Modulator : Power T TJ TP TR TRANS TRK TU : Test Jump : Test Pin : Transistor : Transformer : Tracking : Tuner Q Q QV : Transistor : Quasi Vertical U UHF : Ultra High Frequency V R R REC REF REG REMOCON REV REW RF ROT : Resistor, Right : Recording : Reference : Regulated, Regulator : Remote Control (Unit) : Reverse : Rewind : Radio Frequency : Rotary V V-SYNC VCA VCO
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INSTRUMENT DISASSEMBLY Perform all disassembly procedures in the order presented. When reassembling, use the reverse procedure. Make sure that all leads/wiring are routed correctly when reassembling. After Releasing two screws, Disassemble LEG Release two screws Release two screws Release three screws Fig. 2 Top Cover Removal Fig. 1 - Legs Removal Release three tabsthree tabs. Release Disassemble PANEL FRONTPANEL FRONT. Disassemble Release three tabsthree tabs. Release Fig. 3 .
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INSTRUMENT DISASSEMBLY After releasing seven screws, Disassemble LOGIC PCB Fig. 4 . LOGIC PCB Removal 1 After releasing six screws, disassemble DECK. 3 After releasing four screws, disassemble AMP PCB. After releasing four screws, disassemble LOADER. After releasing three screws, disassemble POWER PCB. Fig. 5 .
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INSTRUMENT DISASSEMBLY After Releasing one screw, Disassemble MAIN PCB Release nine screws Fig. 6. Main Board Removal After releasing six Screws, Disassemble MAIN CHASSIS Fig. 7.
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INSTRUMENT DISASSEMBLY 11
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DESCRIPTION OF THE MECHANISM 1.1 Characteristic of T6-DECK MECHANISM 1) T6-MECHA follows the VHS and the NTSC standard. 2) T6-MECHA uses 3 MOTORS (DRUM MOTOR, CAPSTAN MOTOR, L/C MOTOR). 3) T6-MECHA uses L/C Motor to drive FRONT LOADING. 4) T6-MECHA uses 4-BIT MODE signal to recognize each MODE. This 4-BIT MODE signal is generated from the cam switch driven by the L/C MOTOR. 5) T6-MECHA has 7MODES (EJECT/INITIAL/REV/IDLE/PLAY,STOP,SLOW/BRAKE/FF&REW) operation.
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DESCRIPTION OF THE MECHANISM 1.2 WIRE DIAGRAM 1.2.1 WIRE DIAGRAM 1.2.
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ASSEMBLY DIAGRAM AND A/S 2.1. ASSEMBLY DIAGRAM 2.1.1. DECK ASSEMBLY DIAGRAM A.
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ASSEMBLY DIAGRAM AND A/S B.
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ASSEMBLY DIAGRAM AND A/S 2.1.2. FRONT LOADING ASSEMBLY DIAGRAM Fig.
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ASSEMBLY DIAGRAM AND A/S 2.2 PERIODIC MAINTENANCE AND SERVICE SCHEDULE 2.2.1) Periodic maintenance and Service Schedule A. In order to effectively maintain the excellent performance and fully utilize the features of this apperatus and to lengthen the life of mechanism and tapes, we strongly urge you to perform the periodic maintenance and inspection as described below. ¥ Following should be done after the substition of parts of deck or correction of deck failure. B.
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ASSEMBLY DIAGRAM AND A/S 2.3 JIGS AND TOOLS 2.1 LIST OF JIGS AND TOOLS NO ITEMS MODEL NTSC: SP MONOSCOPE 7KHz SP COLOR BAR 1KHz (EP MONOSCOPE) FIG.
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2..
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3. DISASSEMBLY AND REPLACEMENT 3.1 REMOVAL OF THE FRONT LOADING ASSÕY (FIG. 3.1) 3.2 DISASSEMBLY OF FRONT LOADING ASSÕY(FIG. 3.2~3.5) a. Remove the one WASHER for holding the door opener and separtate F/L Assembly by moving the DOOR OPENER in the direction of arrow. b. Remove the 2 screw holding the TOP PLATE and separate the CASSETT HOLDER ASS‘Y by moving the FL BRKT L and FL BRKT R in the direction of arrow (Fig. 3.2) NOTE: REMOVE THE FRONT LOADING ASS‘Y IN EJECT MODE a.
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DISASSEMBLY AND REPLACEMENT c. Separate the LOADING LEVER ASS‘Y by pressing the connection point from the CASSETTE HOLDER ASS‘Y.(Fig. 3.3) d. Remove the SAFETY SPRING connecting the SAFETY LEVER and CASSETTE HOLDER PLATE.(Fig. 3.3) e. Remove the RELEASE SPRING connecting the RELEASE LEVER and SAFETY LEVER.(Fig3.3) 3. 3 Disassembly of DRUM AssÕy (Fig. 3.5) a. Turn over the DECK MECHANISM and holding the DRUM TOTAL ASS‘Y @ with hands , remove the 3 screw holding the drum total assembly with main base. b.
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DISASSEMBLY AND REPLACEMENT 3. 4. DISASSEMBLY OF LOADING RACK, LOADING ASSÕY, S/T SLANT POLE ASSÕY(FIG. 3.6, 3.7) 3. 5. DISASSEMBLY OF THE A/C HEAD ASSÕY (FIG. 3.8) a. Remove the CONNECTOR @ from the AC HEAD ASS‘Y, Watch out that there is no damage in the HEAD connecting PIN. b. Separate the AC HEAD ASS‘Y ! after unscrewing thescrew # a. Turn out the DECK MECHANISM and remove the LOADING RACK @ after unscrewing the SCREW . b. Disintegrate the R LOADING AS # and L LOADING AS $ . c.
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DISASSEMBLY AND REPLACEMENT 3. 6. DISASSEMBLY OF THE LC BRKT ASSÕY, PINCH LEVER TOTAL ASSÕY (FIG. 3.9) a. Separate the LC BRKT Ass y @ after removing the 3 screws !. b. Separate the LC BRKT Ass y @ from the DECK MECHANISM. c. Disintegrate the PINCH LEVER TOTAL Ass y #. CAUTION: ¥After the assembly of the PINCH LEVER TOTAL Ass y, adjust the tape transmission section by refering to the chapter 5. ¥There should be no pollution on the surface of PINCH ROLLER $ with grease or other foreign material.
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DISASSEMBLY AND REPLACEMENT 3. 8 DISASSEMBLY OF THE S/T BRAKE ASSÕY(FIG. 3.12) 3.11 DISASSEMBLY OF THE FE HEAD (FIG. 3.13) a. Unhook the S BRAKE SPRING # from the MAINBASE HOOK !. b. Remove the S BRAKE Ass y @ from the mainbase. c. Remove the T BRAKE SPRING ^ from the MAINBASE HOOK $. d. Remove the T BRAKE Ass y %. a. Remove the screw ^ and separate the FE HEAD & from the MAINBASE. FIg. 3.12 Disassembly of the S/T BRAKE ASS Y FIg. 3.
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DISASSEMBLY AND REPLACEMENT 3.12 DISASSEMBLY OF THE REEL TABLE, IDLER PLATE TOTAL ASSÕY (FIG. 3.15) a. Remove the POLY WASHER ! and separate the IDLER PLATE TOTAL Ass y @ from the mainbase. b. Remove the REEL TABLE $ from the REEL TABLE POST # of the MAINBASE. CAUTION: ¥Take care not to deform the IDLER PLATE TOTAL Ass y @ when assembling and disassembling. 3.13 DISASSEMBLY OF THE REEL BRKT TOTAL ASSÕY, CONNECT PLATE (FIG. 3.16) a. Turn over the DECK MECHANISM and remove 2 screws !. b.
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MECHANICAL ADJUSTMENT 4. 1 MECHANICAL ADJUSTMENT (FIG. 4.1~4.4) In case of diassembly and reassembly for fixng the mecanical problem, check the following check point. a. Make sure that the DATUM HOLE of the CAM GEAR is aligned wth the DATUM HOLE in the MAINBASE in the EJECT modew as shown in Fig. 4-1. b. Make sure that the ending part A of the RELAY LEVER assembled on the CONNECT PLATE is aligned with the reference hole B of the MAINBASE as shown in Fig. 4.2. c.
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MECHANICAL ADJUSTMENT d. Make sure that the triangular mark A of the L LOADING Ass y is aligned with the mark b of the R LOADING Ass y. (Fig. 4.4) e. Reference hole C of the LOADING RACK should be aligned with the reference hole of the R LOADING Ass y to make the teeth of the LOADING RACK is aligned as shown in Fig. 4.4. 4. 2 ADJUSTMENT AND MEASUREMENT OF THE BACK TENSION (FIG. 4.5, 4.6) a. Check that the location of the TENSION POLE is in the right position. if not, adjust that by refering to the 4.
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MECHANICAL ADJUSTMENT 4. 3 MECHANICAL MODE (OPERATE WITHOUT A CASSETTE TAPE) a. Remove the FRONT LOADING MECHANISM from the DECK MECHANISM b. Cap the IR LED and pull the FL RACK. This has the same effect with cassette loading to the deck. c. If the S,T POLE BASE is loaded, PLAY MODE starts automatically. If you want other function, press the corresponding button. d. Turn off the poser when the Mechanism is in the desired position. 4. 4 ADJUSTMENT OF THE POSITION OF THE TENSION POLE (FIG. 4.6) a.
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ADJUSTMENT OF THE TAPE TRANSPORT SECTION. Generally, tape transporting section has been precisely adjusted in the factory and does not require the ordinary readjustment. But there is the case that tape noise or impact on the deck mechanism, tape transporting section readjustment is required. In adjustment of the tape transmission section consut the following flow chart. If any components shown in Fig. 5.1, tape transport section are changed. To readjust the tape transporting section.
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ADJUSTMENT OF THE TAPE TRANSPORT SECTION CLEANING S/T GUIDE ROLLER HEIGHT • DRUM TOTAL AS • A/C HEAD AS • PINCH LEVER TOTAL AS ADJUSTMENT S/T GUIDE ROLLER FLUNGE A/C HEAD AS ADJUSTMENT (TILT ADJUSTMENT) AUDIO AZIMUTH ADJUSTMENT A/C HEAD ADJUSTMENT X-POSITION ADJUSTMENT PLAYBACK PHASE ADJUSTMENT LINEARITY ADJUSTMENT • S SLANT PLOE AS • T SLANT POLE AS • TENSION BAND AS DRUM ENTRANCE/EXIT ENVELOPE FINE TUNING REVIEW PLAY CHANGING OPERATION CHECK AUDIO OUTPUT CHECK (A/C HEAD HEIGHT& TILT ADJUSTME
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ADJUSTMENT OF THE TAPE TRANSPORT SECTION A. ADJUSTMENT OF THE S/T GUIDE ROLLER D. ADJUSTMENT OF THE AUDIO AZIMUTH(FIG. 5.4) A. Adjustment of the S/T GUIDE ROLLER a. Check the Playing back with a T-120 TAPE. b. Make sure that excessive tape wrinkle does not occure ateatch S, T GUIDE ROLLER. c. If tape wrinkle is observed at the S/T GUIDE ROLLER, turn the guide roller screw until there is not tape wrinkle. a. Play back the ALIGNMENT TAPE (DN2 : SP, NTSC,7KHz) b.
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ADJUSTMENT OF THE TAPE TRANSPORT SECTION G. ADJUSTMENT OF THE LINEARITY(FIG. 5.7) Test Point Measurement Equipment Adjustment F. PLAYBACK PHASE ADJUSTMENT(FIG. 5.6) Measurement Equipment Adjustment S/W PULSE TEST PIN ENVELOPE TEST PIN OSILLOSCOPE VR 595(PG SHIFTER) PATH ADJ. FIXTURE PATH ADJ.FIXTURE PATH ADJ.FIXTURE TAPE TRANSPORT SECTION a. Connect the PT01 on the MAIN CIRCUIT BOARD with a PATH ADJ. FIXTURE. b. Play back an ALIGNMENT TAPE(DN-2 : MONOSCOPE Signal). c.
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ADJUSTMENT OF THE TAPE TRANSPORT SECTION H. ADJUSTMENT OF THE WAVE FORM OF DRUM ENTRANCE /EXIT (FIG. 5.8) Test Point Measurement Equipment Adjustment S/W PULSE TEST PIN ENVELOPE TEST PIN OSILLOSCOPE VR CONTROL S/T GUIDE ROLLER PATH ADJ. FIXTURE PATH ADJ.FIXTURE PATH ADJ.FIXTURE TAPE TRANSPORT SECTION a. Connect the PT01 on the MAIN CIRCUIT BOARD with a PATH ADJ.FIXTURE. b. Play back an ALIGNMENT TAPE(DN-2 : MONOSCOPE signal) c. Connect the S/W PULSE TEST PIN on the PATH ADJ.
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ADJUSTMENT OF THE TAPE TRANSPORT SECTION K. ADJUSTMENT OF THE AUDIO AZIMUTH Test Point Measurement Equipment AUDIO OUTPUT AUDIO LEVEL METER L. X-POSITION Test Point AUDIO OUTPUT JACK Measurement Equipment Adjustment a. Connect the AUDIO output JACK with an AUDIO LEVEL METER. b. Play back the ALIGNMENT TAPE(DN-2:MONOSCOPE 7KHz Signal). c. Check if the AUDIO output signal level is over : -9 ~-3dBm. d.
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EXPLODED VIEW 6.
PAGE 38
EXPLODED VIEW 6.
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EXPLODED VIEW 6.
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EXPLODED VIEW D0040 D0020 D0040 D0050 D0010 D0060 D0070 38
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EXPLODED VIEW N O 39 PART NAME PART NO.
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ELECTRICAL ADJUSTMENT Fig.
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ELECTRICAL ADJUSTMENT PG (Pulse Generator) Shifter Adjustment (Fig. 3) Test Points: Adjust: PT01 PIN # Video Out Jack REC SWITCH Main Rear Panel Main The Pulse Generator (PG) Shifter determines the video head switching point during playback. Misadjustment of the PG Shifter may cause head switching noise in the picture and/or vertical jitter. 1. Load the instrument with an alignment tape and play back the color bar signal or monoscope signal. 2. Connect Path Fixture to PT01. 3.
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WAVEFORMS VIDEO WAVEFORMS 480 20 4 34 42 6
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WAVEFORMS AUDIO WAVEFORMS AUDIO(Normal) 150mVp-p ((IC301-76) 20mV/0.5msec/cm REC 1.5Vp-p ) (IC301-10) 0.5V/0.5msec/cm 2.3Vp-p 1(IC301-9) 0.5V/0.5msec/cm REC REC 120mVp-p 2 (IC301-2) 50mV/0.5msec/cm PLAY 75Vp-p 3 (P201-2) 10V/20µsec/cm REC AUDIO(Hi-Fi) 80mVp-p 4 (IC251-10) 20mV/0.5msec EE/REC/PLAY 200mVp-p 8 (IC251-32) 50mV/0.5msec EE/REC 200mVp-p 5 (IC251-19) 50mV/0.5msec 1.8Vp-p 6 (IC251-21) 0.5V/1msec EE/REC REC 1.0Vp-p 9 (IC251-57) 0.5V/0.5msec EE/REC 43 1.2Vp-p 7 (IC251-29) 0.
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WAVEFORMS SERVO WAVEFORMS 24 28 25 26 29 30 44 27 31
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WAVEFORMS AMP AUDIO WAVEFORMS Amp Micom(IC220) PIN#20(AMP CLK) Amp Micom(IC220) PIN#21(AMP CLK) MCLK DDX-8000 (IC200) PIN#20 BCK DDX-8000(IC200) PIN#11 LRCK DDX-8000 (IC200) PIN#10 PCM0(downmix) DDX-8000 (IC200) PIN#6 PCM1(Front L/R) DDX-8000 (IC200) PIN#9 PCM2(CEN/SUB) DDX-8000 (IC200) PIN#7 PCM3(Rear L/R) DDX-8000 (IC200) PIN # 8 AMP Micom(IC220) PIN#38(COMM_DO) AMP Micom (IC220) PIN#39(COMM_DI) AMP Micom(IC220) PIN#36(COMM_CLK) AMP Micom(IC220) PIN # 14(COMM_CE) DDX-2100 Data In PIN # 29, 3
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VOLTAGE CHART 1. SERVO/SYSCON/TIMER MI-COM MODE IC MI-COM (IC601) MODE STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 4.2 4.2 4.2 4.2 4.2 4.2 4.2 2 4.5 4.5 4.5 4.5 4.5 4.5 4.5 3 4.5 4.5 4.5 4.5 4.5 4.5 4 4.0 4.0 4.0 4.0 4.0 4.0 5 0 0 0 0 0 6 5.1 5.1 5.1 5.1 7 0 0 0 0 8 2 2 2 2 PIN No. IC MI-COM (IC601) STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 44 0 0 0 0 0 0 0 45 0 0 0 0 0 0 0 4.
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VOLTAGE CHART MODE IC MI-COM (IC601) STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 87 3.9 2.5 2.5 2.5 2.5 3.8 3.9 88 0 0 0 0 0 0 0 PIN No. 89 0 0 0 0 0 0 0 90 1.4 1.4 1.4 1.4 1.4 1.4 1.4 91 2.6 2.6 2.6 2.6 2.6 2.6 2.6 92 2.6 2.6 2.6 2.6 2.6 2.6 2.6 93 0 0 0 0 0 0 0 94 2.5 2.2 2.5 2.5 2.5 2.5 2.5 95 2.5 2.8 2.5 2.5 2.5 2.5 2.5 96 2.6 2.6 2.6 2.6 2.6 2.6 2.6 97 2.6 2.6 2.6 2.6 2.6 2.6 2.6 98 5.
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VOLTAGE CHART 3. IC DRIVER/SWITCH VOLTAGE CHARTS MODE IC DRIVER (IC701) MODE STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 2 0 5.1 0 0 0 5.1 0 3 0 0 5 5 5 0 4 5 5 5 5 5 5 2.3 2.3 2.3 2.3 6 4.9 4.9 4.9 7 4.9 4.9 8 4.9 9 IC DRIVER (IC701) STOP REC PLAY REW/ F.
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VOLTAGE CHART 4. VIDEO(LUMA/CHROMA) AND LINEAR AUDIO VOLTAGE CHARTS MODE IC VIDEO/AUDIO (IC301) MODE STOP REC PLAY REW/ F.FWD REC PAUSE PLAY PAUSE 1 2.4 2.4 2.4 2.4 2.4 2.4 2.4 2 2.4 3.0 2.4 2.4 2.4 2.4 3 2.4 2.4 2.4 2.4 2.4 2.4 4 2.4 2.4 2.4 2.4 2.4 5 2.4 2.4 2.4 2.4 6 2.4 2.4 2.4 2.4 7 0.0 1.7 0.0 8 2.4 2.3 2.4 9 2.4 2.3 10 2.4 11 0.8 12 IC VIDEO/AUDIO (IC301) STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 41 0.8 0.8 0.
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VOLTAGE CHART 5. VIDEO SWITCHING IC VOLTAGE CHARTS MODE PIN No. IC401 STOP MODE REC PLAY REW/ F.FWD IC DRIVER (IC701) REV/FWD SEARCH REC PAUSE PLAY PAUSE PIN No. STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 1.8 1.8 1.8 1.8 1.8 1.8 1.8 9 4.1 4.1 4.1 4.1 4.1 4.1 4.1 2 1.9 1.9 1.9 1.9 1.9 1.9 1.9 10 4.1 4.1 4.1 4.1 4.1 4.1 4.1 3 2 2 2 2 2 2 2 11 3.4 3.4 3.4 3.4 3.4 3.4 3.4 4 1.9 1.9 1.9 1.9 1.9 1.9 1.9 12 3.4 3.4 3.
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VOLTAGE CHART 6. HIFI AUDIO IC VOLTAGE CHARTS MODE MODE IC Hi-Fi (IC251) PIN No. STOP REC PLAY REW/ F.FWD 1 2.5 2.5 2.5 2.5 IC VIDEO/AUDIO (IC301) REV/FWD SEARCH REC PAUSE PLAY PAUSE PIN No. STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 2.5 2.5 2.5 33 2.6 2.5 2.5 2.5 2.5 2.5 2.5 2 0 0 0 0 0 0 0 34 0.7 0.7 0.7 0.7 0.7 0.7 0.4 3 2.5 2.5 2.5 2.5 2.5 2.5 2.5 35 2.6 2.5 2.5 2.5 2.5 2.5 2.
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VOLTAGE CHART 8. TMI VOLTAGE CHART MODE PIN No. TMI (RF101) STOP REC PLAY REW/ F.FWD MODE REV/FWD SEARCH REC PAUSE TMI (RF101) PLAY PAUSE PIN No. STOP REC PLAY REW/ F.FWD REV/FWD SEARCH REC PAUSE PLAY PAUSE 1 0 0 0 0 0 0 0 9 4.7 4.8 4.8 4.8 4.8 4.7 4.8 2 0.4 0.4 0.4 0.4 0.4 0.4 0.4 10 4.7 4.8 4.8 4.7 4.8 4.7 4.7 3 5 5 5 5 5 5 5 11 2.2 2.1 2.2 2.2 2.2 2.2 2.2 4 5 5 5 5 5 5 5 12 2.1 2.1 2.1 2.1 2.1 2.1 2.1 5 1.4 1.4 1.3 1.
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VOLTAGE CHART 10. AMP MI-COM VOLTAGE CHART(W78E58BP-42) 1. DVD MODE 2.
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VOLTAGE CHART 2) AM/FM MODE *1 : It is changed according to the state of AM/FM. *2 : It is changed according to the option resistances(R205, R206, R207, R208, R209). - Existing option resistances : 0V - No existing option resistances : 5.
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VOLTAGE CHART 11. AMP DDX-8000 VOLTAGE CHART(DDX-8000) 1. SPEAKER SETUP : Default, Configuration1 1) DVD IC DDX-8000(IC200) MODE 2CH PINNO. STOP PLAY IC DDX-8000(IC200) MODE 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE 2CH MUTE PINNO. STOP PLAY 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE MUTE 1 0 0 0 0 0 0 0 0 33 0 5.1 0 5.1 0 5.1 0 5.1 2 0 0 0 0 0 0 0 0 34 0 5.1 0 5.1 0 5.1 0 5.1 3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 35 3.3 3.3 3.3 3.3 3.3 3.3 3.
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VOLTAGE CHART 1) EXTERNAL INPUT (1) VIDEO MODE IC DDX-8000(IC200) MODE 2CH PINNO. STOP PLAY IC DDX-8000(IC200) MODE 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE 2CH MUTE PINNO. STOP PLAY 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE MUTE 1 0 0 0 0 0 0 0 0 33 0 5.1 0 0 0 5.1 0 0 2 0 0 0 0 0 0 0 0 34 0 5.1 0 0 0 5.1 0 0 3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 35 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 4 0 0 0 0 0 0 0 0 36 0 0 0 0 0 0 0 0 5 2.
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VOLTAGE CHART (2) AM/FM MODE IC DDX-8000(IC200) MODE 2CH IC DDX-8000(IC200) MODE 5.1CH 2CH 5.1CH PINNO. AM FM AM FM PINNO. AM FM AM FM 1 0 0 0 0 33 5.1 5.1 5.1 5.1 2 0 0 0 0 34 5.1 5.1 5.1 5.1 3 3.3 3.3 3.3 3.3 35 3.3 3.3 3.3 3.3 4 0 0 0 0 36 0 0 0 0 5 2.5 2.5 2.5 2.5 37 2.5 2.5 2.5 2.5 6 3.3 3.3 3.3 3.3 38 5.1 0 5.1 5.1 7 3.3 3.3 3.3 3.3 39 5.1 0 5.1 5.1 8 0 0 3.3 3.3 40 5.1 0 5.1 5.1 9 3.3 3.3 3.3 3.
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VOLTAGE CHART 2. SPEAKER SETUP : Configuration 2 , 3 1) DVD IC DDX-8000(IC200) MODE 2CH PINNO. STOP PLAY IC DDX-8000(IC200) MODE 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE 2CH MUTE PINNO. STOP PLAY 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE MUTE 1 0 0 0 0 0 0 0 0 33 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 34 0 0 0 0 0 0 0 0 3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 35 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.
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VOLTAGE CHART 2) EXTERNAL INPUT (1) VIDEO MODE IC DDX-8000(IC200) MODE 2CH PINNO. STOP PLAY IC DDX-8000(IC200) MODE 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE 2CH MUTE PINNO. STOP PLAY 5.1CH PLAY PAUSE MUTE STOP PLAY PLAY PAUSE MUTE 1 0 0 0 0 0 0 0 0 33 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 34 0 0 0 0 0 0 0 0 3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 35 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 4 0 0 0 0 0 0 0 0 36 0 0 0 0 0 0 0 0 5 2.5 2.
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VOLTAGE CHART (2) AM/FM MODE IC DDX-8000(IC200) MODE 2CH IC DDX-8000(IC200) MODE 5.1CH 2CH 5.1CH PINNO. AM FM AM FM PINNO. AM FM AM FM 1 0 0 0 0 33 5.1 0 5.1 0 2 0 0 0 0 34 5.1 0 5.1 0 3 3.3 3.3 3.3 3.3 35 3.3 3.3 3.3 3.3 4 0 0 0 0 36 0 0 0 0 5 2.5 2.5 2.5 2.5 37 2.5 2.5 2.5 2.5 6 3.3 3.3 3.3 3.3 38 5.1 0 5.1 5.1 7 0 0 3.3 3.3 39 5.1 0 5.1 5.1 8 0 0 3.3 3.3 40 5.1 0 5.1 5.1 9 3.3 3.3 3.3 3.3 41 5.1 0 5.
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VOLTAGE CHART 12. AMP DDX-2100 VOLTAGE CHART(DDX-2100) 1. SPEAKER SETUP : Default , configuration1 1) DVD DDX-2100(IC301) MODE DDX-2100(IC301) MODE 2CH 5.1CH PLAY PINNO. STOP PLAY PLAY 1 0 0 0 0 0 0 2 0 0 0 0 0 32.5 3 0 0 0 0 0 4 32.5 32.5 32.5 32.5 5 0 0 0 0 6 0 0 0 7 32.5 32.5 8 0 9 0 10 0 PLAY MUTE PINNO. STOP PLAY 0 0 19 0 0 0 0 20 0 0 32.5 0 0 21 4.8 32.5 32.5 32.5 32.5 22 0 0 0 0 23 0 0 0 0 0 32.5 32.5 32.
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VOLTAGE CHART DDX-2100(IC360) MODE PLAY DDX-2100(IC360) MODE 2CH 5.1CH PLAY PINNO. STOP PLAY 1 0 0 0 0 0 0 2 0 32.5 0 0 0 32.5 3 0 32.5 0 0 0 4 32.5 32.5 32.5 32.5 5 0 0 0 0 6 0 0 0 7 32.5 32.5 8 0 9 0 10 0 PLAY MUTE PINNO. STOP PLAY 0 0 19 0 0 0 0 20 0 0 32.5 0 0 21 4.8 32.5 32.5 32.5 32.5 22 0 0 0 0 23 0 0 0 0 0 32.5 32.5 32.5 32.5 32.5 32.5 0 0 0 32.5 32.5 0 0 0 32.5 0 0 0 0 32.
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VOLTAGE CHART DDX-2100(IC330) MODE 2CH PLAY DDX-2100(IC330) MODE 5.1CH PLAY PINNO. STOP MUTE PINNO. STOP PLAY 1 0 0 0 0 0 0 2 0 32.5 0 0 0 32.5 0 0 19 0 0 0 0 20 0 0 3 0 32.5 0 0 32.5 32.5 0 0 21 4.8 4 32.5 32.5 32.5 32.5 5 0 0 0 0 0 32.5 32.5 32.5 22 0 0 0 0 23 6 0 0 0 0 32.5 0 0 0 7 32.5 32.5 32.5 32.5 0 32.5 32.5 8 0 9 0 32.5 0 0 0 32.5 32.5 0 0 0 32.5 10 0 32.5 0 0 0 32.5 11 0 32.5 0 0 32.5 32.
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VOLTAGE CHART (2) AM/FM MODE MODE IC DDX-2100(IC301) 2CH MODE IC DDX-2100(IC301) 5.1CH 2CH 5.1CH PINNO. AM FM AM FM PINNO. AM FM AM FM 1 0 0 0 0 19 0 0 0 0 2 32.5 0 32.5 32.5 20 0 0 0 0 3 32.5 0 32.5 32.5 21 4.8 4.8 4.8 4.8 4 32.5 32.5 32.5 32.5 22 4.8 4.8 4.8 4.8 5 0 0 0 0 23 3.3 3.3 3.3 3.3 6 0 0 0 0 24 0 0 0 0 7 32.5 32.5 32.5 32.5 25 3.3 3.3 3.3 3.3 8 32.5 0 32.5 32.5 26 4 4 4 4 9 32.5 0 32.5 32.
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VOLTAGE CHART MODE IC DDX-2100(IC360) MODE 2CH AM PINNO. IC DDX-2100(IC360) 5.1CH FM AM 2CH 5.1CH FM PINNO. AM FM AM FM 1 0 0 0 0 19 0 0 0 0 2 32.5 32.5 32.5 32.5 20 0 0 0 0 3 32.5 32.5 32.5 32.5 21 4.8 4.8 4.8 4.8 4 32.5 32.5 32.5 32.5 22 4.8 4.8 4.8 4.8 5 0 0 0 0 23 3.3 3.3 3.3 3.3 6 0 0 0 0 24 0 0 0 0 7 32.5 32.5 32.5 32.5 25 3.3 3.3 3.3 3.3 8 32.5 32.5 32.5 32.5 26 4 4 4 4 9 32.5 32.5 32.5 32.
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VOLTAGE CHART DDX-2100(IC330) MODE PLAY DDX-2100(IC330) MODE 2CH 5.1CH PLAY PINNO. STOP PLAY 1 0 0 0 0 0 0 2 0 32.5 0 0 0 32.5 3 0 32.5 0 0 0 4 32.5 32.5 32.5 32.5 5 0 0 0 0 6 0 0 0 7 32.5 32.5 8 0 9 0 10 PLAY MUTE PINNO. STOP PLAY 0 0 19 0 0 0 0 20 0 0 32.5 0 0 21 4.8 32.5 32.5 32.5 32.5 22 0 0 0 0 23 0 0 0 0 0 32.5 32.5 32.5 32.5 32.5 32.5 0 0 0 32.5 32.5 0 0 0 32.5 0 32.5 0 0 0 32.5 11 0 32.
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VOLTAGE CHART 2) EXTERNAL INPUT (1) VIDEO MODE DDX-2100(IC301) MODE DDX-2100(IC301) MODE 2CH 5.1CH PLAY PINNO. STOP PLAY MUTE PINNO. STOP PLAY 1 0 0 0 0 0 0 2 0 0 0 0 0 32.5 0 0 19 0 0 0 0 20 0 0 3 0 0 0 0 0 32.5 0 0 21 4.8 4 32.5 32.5 32.5 32.5 5 0 0 0 0 32.5 32.5 32.5 32.5 22 0 0 0 0 23 6 0 0 0 0 0 0 0 0 7 32.5 32.5 32.5 32.5 32.5 32.5 32.5 8 0 9 0 0 0 0 0 32.5 0 0 0 0 32.5 10 0 0 0 0 0 32.
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VOLTAGE CHART DDX-2100(IC360) MODE DDX-2100(IC360) MODE 2CH 5.1CH PLAY PINNO. STOP PLAY MUTE PINNO. STOP PLAY 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 19 0 0 0 0 20 0 0 3 0 0 0 0 0 0 0 0 21 4.8 4 32.5 32.5 32.5 32.5 5 0 0 0 0 32.5 32.5 32.5 32.5 22 0 0 0 0 23 6 0 0 0 0 0 0 0 0 7 32.5 32.5 32.5 32.5 32.5 32.5 32.5 8 0 9 0 0 0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 32.5 PAUSE MUTE STOP PLAY 2CH PLAY 5.
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VOLTAGE CHART MODE ICDDX-2100(IC330) 2CH PIN NO. AM MODE IC DDX-2100(IC330) 5.1CH FM AM 2CH 5.1CH FM PINNO. AM FM AM FM 1 0 0 0 0 19 0 0 0 0 2 32.5 32.5 32.5 32.5 20 0 0 0 0 3 32.5 32.5 32.5 32.5 21 4.8 4.8 4.8 4.8 4 32.5 32.5 32.5 32.5 22 4.8 4.8 4.8 4.8 5 0 0 0 0 23 3.3 3.3 3.3 3.3 6 0 0 0 0 24 0 0 0 0 7 32.5 32.5 32.5 32.5 25 3.3 3.3 3.3 3.3 8 32.5 32.5 32.5 32.5 26 4 4 4 4 9 32.5 32.5 32.5 32.
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VOLTAGE CHART IC SMPS/FET/PHOTO COUPLER/REGULATOR/TR VOLTAGE CHARTS MODE PIN No. SMPS Controller(IC801) [V] OFF PWR ON DVD PLAY & VCR OFF DVDOFF VCR PLAY MODE DVD PLAY &VCR REC FM/AM PIN No. SMPS Controller(IC801) [V] 1 NC NC NC NC NC NC 5 1.55 2.6 DVD PLAY & VCR OFF 2.89 2 6 5.6 5.6 5.6 5.6 5.6 6 12.5 14 13.9 13.9 14.1 13.9 3 1.5 2.1 2.3 2.2 2.4 2.1 7 0 0 0 0 0 0 4 8.6mV 37mV 50mV 42mV 59mV 38mV 8 NC NC NC NC NC NC MODE PIN No.
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VOLTAGE CHART MODE PIN No. IC REGULATOR(IC902) [V] OFF PWR ON DVD PLAY & VCR OFF DVDOFF VCR PLAY MODE DVD PLAY &VCR REC FM/AM PIN No. FET(Q903)[V] 1 6.9 6.3 6.2 6.3 6.2 6.3 D 4.4 3.5 DVD PLAY & VCR OFF 3.4 2 0 5 5 5 5 5 G 0 13.4 12.7 13.1 12.6 13.3 S 0.2 3.4 3.4 3.4 3.4 3.4 DVDOFF VCR PLAY 0 DVD PLAY &VCR REC 0 FM/AM 3 0 0 0 0 0 0 4 0.6 5.1 5.1 5.1 5.1 5.1 MODE PIN No.
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TROUBLESHOOTING POWER CIRCUIT ◆ Caution: When checking the primary circuit, be sure to use an isolation transformer. No power NO Exchange POWER CORD POWER cord is ok? YES NO Check D801, TH801, Is 120~200V voltage obtained at C801+? F801,LX801, LX802. YES Output voltage of 2nd parts is abnormal? NO Check IC601, IC701. YES Check rectifier diode of 2nd parts ; D901,D903,D904,D905,D906, D907,D908,D909,R921. Exchange rectifier diode of 2nd parts ; D901,D903,D904,D905,D906, D907,D908,D909,R921.
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TROUBLESHOOTING SYSTEM CIRCUIT A. VFD DISPLAY No VFD display. Is 5V obtained at IC701 pin#13? NO Check D721. YES Is -24V obtained at IC701 NO Check POWER circuit at -24V. pin#30? YES NO Oscillation at IC701 pin #8? Check IC701. YES Is -24V, -20V obtained at NO Check POWER circuit at F-, F+. F-, F+? YES Specific GRID/SEG doesn’t function. YES GRID output at PORT of IC701? NO Check IC 701 pin #31~42. YES NO SEG output at PORT of IC701? Check IC 701 pin #14~29. Exchange IC601.
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TROUBLESHOOTING B. No power compensation. No power compensation. YES NO Voltage of power fail (IC601 Check R625. pin#100) at micom is 0.7V over? YES More than 3.2V is maintained for 1 minutes at IC601 pin#37 during Power Cord Open. NO Check RESET circuit. Exchange IC601. C-1. Bad playback quality (1) Noise appears on the playback screen. Is noise diminished by tracking adjustment. NO Re-adjust PATH.
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TROUBLESHOOTING C-2. Bad playback quality (2) Noise appears on the Full playback screen. Recheck step C-1 (Bad playback quallty (1)). YES Are SW pulse and HA SW NO normal? Are there SW, HA SW pulse at IC601 pin #16, 18? NO Check IC601. YES YES Check PCB Pattern. NO ENVE Wave at PT01 pin #4? Check HEAD AMP connector and HEAD. YES Check VIDEO circuit. D. No broadcasting signal received No broadcasting signal received YES Is the output at IC601 pin# 71(CLK), 72 (DATA) normal? NO Check IC 601.
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TROUBLESHOOTING E. No CASSETTE Loading Cassette tape isn’t inserted. NO Is 5V voltage obtained at Loading parts IC601 pin#82? Check at Power Circuit 14V. Check (D905, D906). YES NO Is 13V voltage obtained at Check D851 (Main circuit). Capstan Motor pin#8? YES Is 12V voltage obtained at Each parts of Loading Motor? NO Connect Capstan and Loading Motor. Check connector and Capstan Motor. YES Replace Loading Motor. F. AUTO STOP in Playback mode VCR stops automatically in playback mode.
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TROUBLESHOOTING G. DRUM Motor stops DRUM Motor stops. Is 13V voltage obtained at NO Check 14V P603 pin#8? (P601 #9). YES Is DRUM PWM fit to IC 601 NO pin#76? Check DRUM PG/FG(IC 601 90). YES Is 1.2V voltage obtained at P603 pin#12? NO Check R657, R658,C661,C668. YES Check Capstan Motor and DRUM Motor. H. CAPSTAN doesn’t rotate CAPSTAN doesn’t rotate. Is 14V voltage obtained at P603 pin#2? NO Check 14V.
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TROUBLESHOOTING VIDEO CIRCUIT A. EE screen doesn’t appear EE screen doesn’t appear. YES Is video signal input at IC301 pin#28, 30, 32? NO Check IC401, LINE JACK and IF circuit. YES Is 5V obtained at IC301 pin#23, 44, 45, 52, 68? NO Check power circiut. YES Is C.S, DATA, CLOCK signal input IC301 pin#53,54,55? NO Check IC pin#61, 71, 72. YES Is video signal output at IC301 pin#26? NO Check IC301 pin#24 QV-sync. YES Is signal input at IC401 pin#2? NO Check PCB pattern.
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TROUBLESHOOTING B. Playback picture doesn’t appear Playback picture doesn’t appear. YES Is C.S, DATA, CLOCK signal input IC301 pin#53,54,55? NO Check IC pin#61, 71, 72. YES Is envelope output at IC301 pin#14? NO Is 5V obtained at IC301 pin#68? NO Check power circuit. YES Is SW Pulse input at IC301 pin#57? NO YES Clean or Replace HEAD. YES Is Y signal output at IC301 pin#35? NO Check IC601 pin#18. Is 5V obtained at IC301 pin#23,44,45,68? NO Check power circuit. YES Check and Replace IC301.
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TROUBLESHOOTING C. No recording No recording. Check EE MODE. YES Is FM signal output at IC301 NO Is signal input at IC301 pin# pin#14? 28, 30,32? YES Is 5V obtained at IC301 pin#68? NO Check POWER circuit. YES Is VIDEO SW Pulse input at IC301 pin#57? NO Check IC601 pin#18. YES Is REC signal input at IC301 pin#66,73? EP MODE: Pin #73 SP MODE: Pin #66 NO Replace IC301. Check video HEAD and Connector. D. No OSD(On Screen Display) appears. (VCR) No OSD appears.
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TROUBLESHOOTING E. No Logo Display or Do not open tray.(DVD) No Logo display. Do not open tray YES Is video mode-S-Video NO Change video mode. mode? YES Is power supplied CN2? NO Is power_on_H signal output at PJ601 pin#11. (In DVD loader PCB) NO Check IC 601 pin#29 and PCB pattern. YES Is video signal output at P101 pin#1,3,5,7,8,9? NO Check DVD loader.
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TROUBLESHOOTING AUDIO CIRCUIT 1. RCA A. No sound in E-E mode A-1. TV E-E No sound in RF E-E mode YES Is 12V obtained at IC251 pin#58? NO Check POWER circuit. YES Is 5V obtained at IC251 pin#40? YES Is there SIF signal at IC251 pin#48 in RF mode? NO Check RF101. YES Is Audio signal output at IC251 pin#53, 57? NO Are CLK and DATA obtained at IC251 pin#42,43? YES Replace IC251. YES NO Check Output JACK. Is there MUTE(H) at IC251 pin#36? 82 YES Check IC601.
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TROUBLESHOOTING A-2. LINE1 E-E No sound in LINE1 E-E mode. YES Is 12V obtained at IC251 pin#58? NO YES Is 5V obtained at IC251 pin#40? Check POWER circuit. YES NO Replace IC 252 YES Is Audio signal at IC251 pin#10,15? NO YES Is there H at IC 12V obtained at IC252 #9, IC252 pin #16? #10? YES NO Are CLK and DATA obtained at IC251 pin#42,43? YES YES Replace IC251 NO NO Check Output JACK.
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TROUBLESHOOTING A-3. LINE2 E-E No sound in LINE2 E-E mode. YES Is 12V obtained at IC251 pin#58? NO YES Check POWER circuit. Is 5V obtained at IC251 YES pin#40? NO Replace IC 252 YES Is Audio signal at IC251 pin#10, #15? NO YES Is there H at IC 12V obtained at IC252 #9, IC252 pin #16? #10? YES NO Are CLK and DATA obtained at IC251 pin#42,43? YES Replace IC251 NO YES NO Check Output JACK.
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TROUBLESHOOTING A-4. LINE3 (FRONT) E-E No sound in LINE3(FRONT) E-E mode. YES Is 12V obtained at IC251 pin#58? NO YES Is 5V obtained at IC251 pin#40? Check POWER circuit. YES NO Replace IC 252 YES Is Audio signal at IC251 pin#10,#15? NO YES Is there H at IC 12V obtained at IC252 #9, IC252 pin #16? #10? YES NO Are CLK and DATA obtained at IC251 pin#42,43? YES Replace IC251 NO YES NO Check Output JACK.
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TROUBLESHOOTING A-5. DVD E-E NO sound DVD EE mode. YES Are there voltage at ICD01 NO Check POWER circuit. #8(5V), #9(3.3V), #21(5V)? YES NO Are there clocks at ICD01 #5(BCLK), Check DVD Board. #6(LRCLK), #10(MCLK)? YES NO Is there reset at ICD01 #14? Check signal flow circuit.
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TROUBLESHOOTING A-6. SUBWOOFER PRE-OUT E-E NO sound Subwoofer preout EE mode. YES Is Speaker setup default or NO Subwoofer output is only in the default or configuration1. configuration1? YES Are there voltages at ICD01 #8(5V), NO #9(3.3V), #21(5V)? Check Power circuit. YES Are there clocks at ICD01 #5(BCLK), NO Check DVD Board. #6(LRCLK), #10(MCLK)? YES Is there reset(H) at ICD01 #14? NO Check signal flow circuit.
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TROUBLESHOOTING B. No Hi-Fi playback audio (PLAY MODE) Is 12V obtained at IC251 pin#58? NO YES Check POWER circuit. Is 5V obtained at IC251 pin#40? YES Is there Hi-Fi(H) at IC251 pin#28? NO Check DRUM connector and DRUM. NO Check A.SW at IC601 pin#19. YES Is A.SW Signal input at IC251 pin #27? YES Is there playback Audio signal at IC251 pin#53, 57? NO YES Replace IC251. NO YES NO Check Output JACK.
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TROUBLESHOOTING c. No Hi-Fi playback in record/playback mode(REC MODE) Are there Audio signal at IC251 pin#9,14 #10, 15 #2,4? NO Check input LINE1 JACK. Check input LINE2 JACK. Check input LINE3(Front) JACK. YES Is there REC(H) at IC251 pin#29, 30? NO Check IC601 pin#22 YES Is FM OSC signal at IC251 pin#21? NO Replace IC251 YES Is FM OSC signal at P301 pin#2? NO Replace DRUM YES HEAD CLEANING.
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TROUBLESHOOTING D. No NORMAL AUDIO playback (PLAY MODE) Is there normal Audio signal at IC251 pin#53, 57? NO Voltage at IC251 pin#58 is 12V? Voltage at IC251 pin#40 and at IC301 pin#77 is 5V? NO Check power circuit. YES Is Playback Audio signal at NO Check A/C HEAD and IC301 IC301 pin#10? YES Is there Playback Normal Audio signal at IC251 pin#53,57? YES Check Output JACK. 90 NO Replace IC251.
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TROUBLESHOOTING E. No NORMAL AUDIO playback in record/playback mode(Check in REC mode) No Normal Audio playback in record/playback mode Are there Audio signal at IC251 pin#9,14 #10,15 #2,4? NO Check Input LINE1 JACK. Check Input LINE2 JACK. Check input LINE3(Front) JACK. YES Is there recording signal at NO Check IC251. IC251 pin#61? YES Signal at IC251 pin#61 is transferred to IC301 pin#76,78,80? NO Check signal flow circuit. YES REC (H) BASE voltage at Q206 is 5V? NO Check IC601 pin#22.
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TROUBLESHOOTING 2. HEADPHONE NO sound in DVD or EXTERNAL mode. YES Are there voltages at ICD01 #8(5V), NO Check Power circuit. #9(3.3V), #21(5V)? YES NO Are there clocks at ICD01 #5(BCLK), #6(LRCLK), #10(MCLK)? Check DVD Board. YES NO Check signal flow circuit. Is there reset(H) at ICD01 #14? YES NO Is 12V obtained at ICD03 #8? YES Are there signals at ICD04 #1, #7? NO Check ICD02. YES Check output JACK.
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TROUBLESHOOTING No sound in the DVD MODE. YES Is+3.3V obtained at IC200 VDD_3.3? Check power circuit. YES Is+2.5V obtained at IC200 VDD_2.5? NO NO YES Is+3.3V obtained at the IBIAS of IC301,IC330,IC360? NO YES Is+32.5V obtained at the Vcc of IC301,IC330,IC360? NO YES Is there ‘H’ at IC200 #64(PWDN)? NO Check IC220 YES Is+3.
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TROUBLESHOOTING The volume is not operating YES Is+5V obtained at IC220 #9, #35, #44? Check power circuit. NO YES Is+3.3V obtained at IC200 VDD_3.3? YES Is+2.5V obtained at the IC220 VDD_2.5? YES Is there ‘L’ at IC220 #10? NO Check IC601 and Data ports. NO Check X220 and replace inferior device.
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TROUBLESHOOTING The protect takes place in the VFD Are the #4,#7,#12,#17 of IC 301, IC330,IC360 connected to the ground? Are the #2~3, #8~9,#10~11,#16~17 of IC301,IC330,IC360 connected the ground? Check IC301, IC330,IC360 and replace inferior device NO Check Power circuit YES NO YES Is+4V obtained at #26(TRI),#27(Fault) of IC301,IC330,IC360? NO Is there ‘H’ at IC220 #10? YES YES Is there ‘H’ at IC200 #51(EAPD)? Is there ‘H’ at IC220 #25? NO YES Check Q201,Q202 YES Are there clocks at IC200 #10(L
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TROUBLESHOOTING No sound in the Radio MODE. YES Is +12V obtained at RF102 #3? NO Check power circuit. YES When tunning play are there NO Check IC220 and communication withe IC601. normal PLL control signals at IC220 #3~#6? YES When tuned, is there ‘L’ at RF102 #1, #2? NO Check RF102 and replace inferior device. YES NO When tuned, is there audio signals at RF102 #4, #6? YES Are there Voltage at ICD01 #18(5V) #9(3.3V), #21(5V)? NO Check power circuit.
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TROUBLESHOOTING No sound in External(Video) MODE. YES Are there Voltage at ICD01 NO Check power circuit. #18(5V) #9(3.3V), #21(5V)? YES Are there normal audio signals NO Check signal flow circuit. at ICD01 #16~#17, #19~20? YES Are there clock at NO ICD01#5(BCLK), #6(LRCLK), #10(MCLK)? Check DVD Board. YES Are CLK and DATA obtained at ICD01 #11, #12? NO Check IC220 YES Is there normal PCM DATA at ICD01 #4? NO Check IC01 and replace inferior device. YES Check signal flow circuit.
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SCHEMATIC DIAGRAM POWER SUPPLY SCHEMATIC DIAGRAM R714 4.7 5W(OPEN) C707 102 1KV(OPEN) T701 B702 3557 DV8T911N3A (EER-42/4215(V)) L701 DR22(22uH) D704 SF3006PT 32V/7A 7 R701 68K 2W R702 47K 1W 14 + C701 103 1KV HS4 BH144-55 13 C709 3300uF 50V 6 R703 47K 1W D701 UF4007 C702 101 1KV 5 D702 UF4004 + R715 2.7K 2W C710 2200uF 50V R716 2.7K 9 PC701 L817B + R705 22K 2 R704 6.
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SCHEMATIC DIAGRAM SERVO & SYSCON SCHEMATIC DIAGRAM (DVD COMBO RECEIVER) 99
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SCHEMATIC DIAGRAM VIDEO/AUDIO SCHEMATIC DIAGRAM (DVD COMBO RECEIVER) 100
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SCHEMATIC DIAGRAM Hi-Fi & S/W & PIF & MPX SCHEMATIC DIAGRAM (DVD COMBO RECEIVER) 101
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SCHEMATIC DIAGRAM DIGITAL AUDIO/VIDEO SCHEMATIC DIAGRAM(DVD COMBO RECEIVER) 102
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SCHEMATIC DIAGRAM RECEIVER FRONT PART SCHEMATIC DIAGRAM 103
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SCHEMATIC DIAGRAM DIGITAL AMP SCHEMATIC DIAGRAM 104
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SCHEMATIC DIAGRAM 1 1 DVD SCHEMATIC DIAGRAM 1. ATAPI I/F HDD[0..
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SCHEMATIC DIAGRAM DVD SCHEMATIC DIAGRAM 2.
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SCHEMATIC DIAGRAM DVD SCHEMATIC DIAGRAM 3. Memory Interface MA[0:11] MD[0:31] MA[0..11] MD[0..31] MD[0..
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SCHEMATIC DIAGRAM DVD SCHEMATIC DIAGRAM 4. POWER & Bypass Cap DIG_3V3 DIG_1V8 Q7 LT1117CST-ADJ 3 VIN HEAT SINK AREA FOR U1 : FOR THE DEVICE, ALLOW 25MM SQ COPPER AREA ON LAYER 1. THAT IS CONNECTED TO THE "TAB" (PIN 4). 2 4 VOUT TAB ADJ 1 HEAT SINK AREA FOR U2 : FOR THE DEVICE, ALLOW 12MM SQ COPPER AREA ON LAYER 1. THAT IS CONNECTED TO THE "TAB" (PIN 4). + C162 0.1uF TC46 47uF/6V GND GND GND C163 0.
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SCHEMATIC DIAGRAM DVD SCHEMATIC DIAGRAM 5.
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BLOCK DIAGRAM RECEIVER SERVO & SYSCON BLOCK DIAGRAM 110
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BLOCK DIAGRAM COMBO RECEIVER VIDEO BLOCK DIAGRAM 111
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BLOCK DIAGRAM NORMAL AUDIO BLOCK DIAGRAM 112
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BLOCK DIAGRAM Hi-Fi & S/W & PIF BLOCK DIAGRAM 113 DRC6000N, DRC6000L Hi-Fi AUDIO BLOCK DIAGRAM REV.0 2002.09.
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BLOCK DIAGRAM DIGITAL AUDIO BLOCK DIAGRAM 114
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BLOCK DIAGRAM AMP BLOCK DIAGRAM 115
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CIRCUIT BOARD INDEX MAIN PCB CIRCUIT BOARD(RTD300) 116
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CIRCUIT BOARD INDEX POWER/LOGIC PCB CIRCUIT BOARD(RTD300) 117
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CIRCUIT BOARD INDEX AMP PCB CIRCUIT BOARD(RTD300) 118
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ELECTRICAL PARTSLIST ✔ Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr) LOC Z800 PARTS_CODE 97PD203300 PARTS_NAME PARTS_DESCRIPTION PCB POWER MANUAL AS ICR 300DN AC85~265V 300W REMARK LOC PARTS_CODE PARTS_NAME PARTS_DESCRIPTION REMARK ICR 200DN AC85~265V 200W 10V RSS 470MF (8X11.
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ELECTRICAL PARTSLIST LOC C311 C312 PARTS_CODE HCBK104KBA CEXF1C100A PARTS_NAME C CHIP CERA C ELECTRO PARTS_DESCRIPTION 50V X7R 0.
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ELECTRICAL PARTSLIST LOC CD30 CD33 PARTS_CODE CEXF1C100A CEXF1C220A PARTS_NAME C ELECTRO C ELECTRO PARTS_DESCRIPTION 16V RSM 10MF 5X7 16V RSM 22MF (5X7) REMARK Main PCB Main PCB LOC PARTS_CODE D108A DZUZ7R5BSC D109 DZUZ5R1BSB PARTS_NAME DIODE ZENER DIODE ZENER PARTS_DESCRIPTION UZ-7.5BSC(7.33-7.64) UZ-5.1BSB(4.97-5.
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ELECTRICAL PARTSLIST LOC L103 L104 PARTS_CODE 5CPX688K2T 5CPX101J2T PARTS_NAME COIL PEAKING COIL PEAKING PARTS_DESCRIPTION 0.68UH(BLU-SILV) 100UH(BRN-BRN) REMARK Main PCB Main PCB LOC Q201 Q202 PARTS_CODE TZTA1266YTZTC3202Y- PARTS_NAME TR TR PARTS_DESCRIPTION KTA1266Y- (AUTO)(1015Y) KTC3202Y (AUTO)(1959Y) REMARK Main PCB Main PCB L105 L106 L107 L108 L109 5CPX101J2T 85801060TA 85801060TA 85801060TA 85801060TA COIL PEAKING WIRE COPPER WIRE COPPER WIRE COPPER WIRE COPPER 100UH(BRN-BRN) 0.
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ELECTRICAL PARTSLIST LOC R205 R206 PARTS_CODE HRFS273JBA HRFS821JBA PARTS_NAME R CHIP R CHIP PARTS_DESCRIPTION 1/16 27K OHM J 1608 1/16 820 OHM J 1608 REMARK Main PCB Main PCB LOC R288 R289 PARTS_CODE RD-AZ471JRD-AZ471J- PARTS_NAME R CARBON FILM R CARBON FILM PARTS_DESCRIPTION 1/6 470 OHM J 1/6 470 OHM J REMARK Main PCB Main PCB R207 R208 R212 R213 R220 HRFS333JBA RD-AZ622JHRFS822JBA RD-AZ472JHRFS223JBA R CHIP R CARBON FILM R CHIP R CARBON FILM R CHIP 1/16 33K OHM J 1608 1/6 6.2K OHM J 1/16 8.
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ELECTRICAL PARTSLIST LOC R601 R602 PARTS_CODE RD-AZ102JRD-AZ103J- PARTS_NAME R CARBON FILM R CARBON FILM PARTS_DESCRIPTION 1/6 1K OHM J 1/6 10K OHM J REMARK Main PCB Main PCB LOC R851 R852 PARTS_CODE RD-4Z123JRD-4Z123J- PARTS_NAME R CARBON FILM R CARBON FILM PARTS_DESCRIPTION 1/4 12K OHM J 1/4 12K OHM J REMARK Main PCB Main PCB R604 R605 R606 R607 R608 85801060TA HRFS103JBA HRFS103JBA RD-AZ103JRD-AZ103J- WIRE COPPER R CHIP R CHIP R CARBON FILM R CARBON FILM 0.
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ELECTRICAL PARTSLIST LOC RD56 RD58 PARTS_CODE HRFS103JBA HRFS181JBA PARTS_NAME R CHIP R CHIP PARTS_DESCRIPTION 1/16 10K OHM J 1608 1/16 180 OHM J 1608 REMARK Main PCB Main PCB RD59 RD63 RD64 RD65 RD66 HRFS181JBA HRFS512JBA HRFS102JBA HRFS102JBA HRFS912JBA R CHIP R CHIP R CHIP R CHIP R CHIP 1/16 180 OHM J 1608 1/16 5.1K OHM J 1608 1/16 1K OHM J 1608 1/16 1K OHM J 1608 1/16 9.
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ELECTRICAL PARTSLIST LOC PARTS_CODE JP709 85801065GY JP710 85801065GY PARTS_NAME WIRE COPPER WIRE COPPER PARTS_DESCRIPTION AWG22 1/0.65 TIN COATING AWG22 1/0.
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ELECTRICAL PARTSLIST LOC C254 C255 PARTS_CODE HCFH104ZBA HCFH104ZBA PARTS_NAME C CHIP CERA C CHIP CERA PARTS_DESCRIPTION 25V Y5V 0.1MF Z 1608 25V Y5V 0.1MF Z 1608 REMARK AMP PCB AMP PCB LOC C360 C361 PARTS_CODE CEXF1H102V HCFH104ZBA PARTS_NAME C ELECTRO C CHIP CERA PARTS_DESCRIPTION 50V RSS 1000MF (16X25) TP 25V Y5V 0.
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ELECTRICAL PARTSLIST LOC P200 P201 PARTS_CODE 97P62G08E7 97P62G08EV PARTS_NAME CONN FFC CONN FFC PARTS_DESCRIPTION GF102-07S-TS 07P ST GF102-29S-TS 29P ST REMARK AMP PCB AMP PCB LOC R298 R299 PARTS_CODE HRFS243JBA HRFS473JBA PARTS_NAME R CHIP R CHIP PARTS_DESCRIPTION 1/16 24K OHM J 1608 1/16 47K OHM J 1608 REMARK AMP PCB AMP PCB P301 Q201 Q202 R1240 R1241 97P62G08EB TZRC104M TZRC104M HRFS470JBA HRFS470JBA CONN FFC TR TR R CHIP R CHIP GF102-11S-TS 11P ST KRC104M AUTO KRC104M AUTO 1/16 47 OHM J
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ELECTRICAL PARTSLIST ✎ Panel / Deck / DVD / Speaker system & etc. LOC SP01 SP01 PARTS_CODE 48A83084A2 48A83078A2 PARTS_NAME SPEAKER SYSTEM SPEAKER SYSTEM PARTS_DESCRIPTION HTWCFR-300BA2 HTWCFR-200BA2 REMARK 300 Watt 200 Watt M100 M101 M101 A0100 A0101 A0200 97QD020200 97PB253200 97PB253300 97SA332200 97S3102000 97SA316500 TOTAL DVD DVD DOOR AS DOOR DVD AS MAIN BASE AS SCREW TAPPTITE S SLANT POLE AS RL-S900(MECHA+SERVO+MPEG) TCE 25901+09500 DR-C91D1N-BS 26700+09500 DR-C9A21N-BS T4.
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DAEWOO ELECTRONICS Corp. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O.