Service Manual TV/VCR IN ONE BOARD CHASSIS : CN-140 NTSC-M SYSTEM MODEL : DVN-14F6N DVN-20F6N ;;;; ;;;; ;;;; ;;;; ;;;; ;;;; ✔ Caution : In this 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). DAEWOO ELECTRONICS CO., LTD.
CONTENTS Specifications .................................................................................................. 1 Satety Checking After Servicing .................................................................... 2 1. Insulation resistance test 2. Dielectric strength test 3. Clearance distance 4. Leakage current test Important Service Notes ................................................................................. 3 1. X-RAY radiation precaution 2. Safety precaution 3.
Signal Flow ..................................................................................................... 35 1. Video & Audio 2. Power circuits 3. Deflection circuits 4. U-COM circuits 5. Channel selection and memory 6. Servo/Syscon circuit operation 7. Normal audio circuit operation 8. Video circuit operation ¡sfl Operation .............................................................................. 43 Important IC¡ 1. IY03(LA7411) 2. IY02(LC89960) 3. IY01(LA7423A) 4. IU01(BA7790LS) 5.
■ SPECIFICATIONS Format : VHS standard Playback System : 2 rotary heads, helical scanning system Luminance : FM azimuth recording Color Signal : Converted sub-carrier phase shift recording Video Signal System Video Horizontal Resolution : 1 track Tape Width : 12.65 mm (1/2 inch) Tape Speed : (SP) : 33.35 mm/s (1.5/16 ips) (LP) : 16.67mm/s (21/32 ips) (SLP) : 11.12 mm/s (7/16 ips) Maximum Recording Time : (SLP) : 480min.
• Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specfied values in order to verify compliance with safety satandards. 1.
■ IMPORTANT SERVICE NOTES sensitivity in the following manner. Connect at 1500 ohm watt resistor, paralleled by a 0.15 mfd, AC type capacitor, between a known good earth ground (water pipe, conduit, etc.) and the exposed metalic parts, one at a time. Measure the AC voltage across the combination of 1500 ohm resistor and o.15 mfd capacitor. Reverse the AC plug at the AC output and repeat AC voltage measurements for each exposed metallic part. Voltage messured much not exceed 0.3 volts RMS.
■ GENERAL ADJUSTMENT 1. GENERAL 7.WHITE VALANCE ADJUSTMENT In the majority of cases, color television will need only slight touch-up adjustment upon installation. Check the basic characteristics such as height, focus and sub-bright. Observe the picture for good black and white details without objectionable color shading. If color shading is evident, demagnetize the receiver. If color shading still persists, perfor purity and convergence adjustments.
5) Remove the Rubber Wedges. 6) Rotate and spread the tabs of the purity magnet (see figure 2) around the neck of the picture tube until the green belt is in the center of the screen. At the same time, center the raster vertically. 7) Move the yoke slowly forward until a uniform green screen is obtained. Tighten the clamp screw of the yoke temporarily. 8) check the purity of the red and blue raster by adjusting the BIAS controls.
B. CIRCUMFERENCE CONVERGENCE ADJUSTMENT NOTE : This adjustment requires Rubber Wedge Kit. 1) Loosen the clamping screw of deflection yoke to allow to yoke to tilt. 2) Place a wedge as shown on figure 2 temporarily. (Do not remove cover paper on adhesive part of the wedge). 3) Tilt front of the deflection yoke up or down to obtain better convergence in circumference. (See Fig. 4) Push the mounter wedge into the space between picture and the yoke to hols the yoke temporarily.
■ LEADLESS(CHIP) INSTRUCTION 1.LEADLESS(CHIP) COMPONENT REMOVAL INSTRUCTION • The following procedures are recommended for the replacement of the leadless components used in this unit. 1-1. Preparation for replacement a. Soldering Iron Use a pencil-type soldering iron that uses less than 3o watts. b. Solder Eutectic solder (Tin 63%, Lead 37%) is recom mened. c. Soldering time Do not apply heat more than 4 seconds. d. Preheating Leadless capacitor must be preheated before installation.
2.LEADLESS (CHIP) COMPONENT IDENTIFICATION 2-1. Check the followings before S. M. D Troubleshooting • Cracked Chipped component Body • Cracked Separated Solder Joints • Peeling end Terminations Fractured Leads • Rejection of Solder from copper Pads or Component • Foreign Matter on Copper Pads • Sloder Bridges 2-2. S.M.
■ MECHANICAL DISASSEMBLY(DECK) 1.TOP VIEW Fig. 9- tape Transport Mechanism Identification (Top View) 1. 2. 3. 4. 5. 6. 7. 8. 9. Earth Bracket Ass'y FE Head S-Slant Pole Ass'y Tension Lever Ass'y Reel Table Main Base Ass'y S-Sub Brake Ass'y S-Main Brake Ass'y Idler Plate Total Ass'y 10. T-Main Brake Ass'y 11. T-Sub Brake Ass'y 12. Relay Lever 13. Capstan Motor 14. Pinch Lever Total Ass'y 15. L/C Bracker Total Ass'y 16. Cam Gear 17. AC Head Total Ass'y 18.
2.BOTTOM VIEW Fig. 10- Tape Transport Mechanism Identification (Bottom View) 20. Capstan Motor 21. F/L Rack 22. Connect Plate 23. Reel Belt 24. Reel Gear Total Ass'y 25. Record Safety Lever 26. Loading Lever L 27. Loading Lever R 28. Drum Total Ass'y 29.
3.F/L MECANISM VIEW Fig. 11- Front Loading Mechanism Identification (Top view) 1. 2. 3. 4. 5. 6. Top Plate Ass'y F/L Bracket R Prism Cap Release Lever Loading Lever R CST Holder Ass'y 7. Loading Shaft 8. Loading Lever L 9. Door opener 10. Safety Lever 11.
assembly. 3. Remove the cassette holder assembly (Fig. 13) 4. Remove the prism cap and remove one (1) screw hold- 4. General removal view Front Loading Mechanism Removal (Fig. 12) NOTE : The front loading mechanism must be in the eject position to remove it. 1. Remove two (2) screw holding the Front Loading Mechanism. 2. Lift the rear of the cassette loading mechanism (hole Fig. 14- F/L Brkt Disassembly ing the prism link R and remove the prism link R from the F/L bracket R (Fig. 4) Fig.
Fig. 16- Loading Lever Ass'y Disassembly NOTE : Reassemble the cassette loading mechanism using the reverse procedures. Confirm that the two (2) bosses on the left side of the cassette holder are inserted into the groove in the left side of the top plate. Insert the two (2) bosses on the right side into the F/L bracket R (Fig. 17) Fig. 18- Replacement of the Drum total Ass'y and Earth Brkt Ass'y Reel belt, Loading Rack, Loading Gears, and S/T Slant Pole Removal (Fig. 19, 20) 1.
L/C Bracket Assembly removal (Fig. 22) 1. Remove one (1) screw ① from the L/C bracket assembly ② and remove the L/C bracket assembly ② from the deck mechanism (Fig. 22) NOTE : When reassembling, refer to Fig. 23 for alignment instructions. Replacement of Pinch Lever Total Assembly Removal (Fig. 22) 1. Remove one (1) washer ③. 2. Unhook the pinch spring ④ from the main base ⑤ and remove the pinch lever total assembly ⑥. NOTE : Take care not to get oil on the outside surface of the pinch roller ⑩. Fig.
Fig. 23- L/C Bracket Assembly Alignment Cam Gear, and F/L Rack Removal (fig. 22) Fig. 25- Main Plate Removal 1. Remove the cam gear ⑦ form the deck mechanism. 2. Remove the relay lever ⑥ from the main base ⑤. 3. Remove the F/L rack ⑧ from the deck mechanism. Tension Band Assembly Removal (Fig. 26, 27) 1. Remove the tension spring ② from the main base ① (Fig. 26) 2. Turn the deck mechanism upside down (fig. 27) is facing down (fig. 27) NOTE : When reassembling, align the assembly as shown in Fig.
FE Head Removal (fig. 31) Remove one (1) screw (1) and lift the FE head (2) from the main base. Fig. 27- Tension Band Assembly Removal (2) Fig. 28- Tension Band Assembly Alignment With Main Base Capstan Motor Removal (Fig. 29) Remove three (3) screws and remove the capstan motor. Fig. 31- FE Head Removal Reel Gear Total Ass'y and Connect Plate Removal (fig. 32) 1. Turn the deck mechanism upside down and remove one ① polywasher ①. 2.
Some disassembly is required to access the adjustment locations. Refer to the "Disassembly Selection" in this publication for disassembly instructions. Caution : Use an isolation transformer when servicing. 5. Mechanical Checks/Gear Alignment (fig. 1, 2, 3, 4, 5) When mechanical problems occur or when reassembling parts in this mechanism, be sure to confirm the following instructions to confirm the following: 1.
3. There are two (2) triangular marks on the mode sense switch. When installing the L/C bracket assembly on the main base, confirm that the two (2) triangular marks aligned with each other in the EJECT mode (Fig. 3) Fig. 3 - Mechanical checks/Mode Sense S/W Alignment 4. Make sure that the boss "A" of the Pinch Lever Total Ass'y is positioned at the point "B" of the cam gear in EJECT mode (fig. 4). Fig.
5. Confirm that the triangular mark "A" on the Loading Gear L Ass'y is aligned with the notch "B" in the Loading Gear R Ass'y in EJECT mode (Fig. 5) 6. Make sure that the teeth of the Loading Rack are aligned with the those of the Loading Gear R so that hole "C" of the Loading Rack aligns with the circulr mark "D" on the Loading Gear R (fig. 5) Fig.
6. Tension checks Back Tension Measurement /Adjustment (fig. 6, 7) 1. Confirm that the position of the tension pole is correctly positioned. If not, refer to the "Tension Pole Position Adjustment Procedures" 2. Play back a T-120 tape from the beginning for about 20 seconds (wait until tape transporting system comes to be stable). 3. Insert the Tensiometer on the tape path (fig. 6) and measure the back tension. the measured result must meet the specification (25-33gr). 4.
Operating the VCR Without a Cassette Tape 1. 2. 3. 4. Remove the cassette Loading Mechanism. By hand revolve the worm counterclockwise 7-8 times until pole base loading process starts automatically. Then PLAY mode appears. If you want ANOTHER mode, Press the desired button. If the mechanism is in the desired mode, remove the Power. Tension Pole Position Adjustment 1. Make the mode PLAY without a cassette loaded. Refer to "Operating the VCR Without a Cassette Tape". 2.
■ MECHANICAL ADJUSTMENTS Tape Path Alignment Procedures The tape transporting system is precisely aligned at the factory and under the normal circumstances will not require adjustment. However, if noise appears in the playback picture, it can be considered that the tape damage occured or the tape path has been changed, readjustment of the tape path is necessary. ADJUSTMENT FLOW FOR THE TAPE TRANSPORTING SYSTEM CLEANING CHANGE • DRUM TOTAL ASS'Y • A/C HEAD ASS'Y • PINCH LEVER TOTAL ASS'Y PATH ROUGH ADJ.
THE SCHEMATIC DIAGRAM OF TAPE TRANSPORTING SYSTEM ① TENSION POLE ② S-GUIDE POST ③ FE HEAD ④ S-GUIDE ROLLER(P2) ⑤ S-SLANT POLE ⑥ DRUM ⑦ T-SLANT POLE 23 ⑧ T-GUIDE ROLLER(P3) ⑨ A/C HEAD ⑩ T-GUIDE POST ⑪ CAPSTAN SHAFT ⑫ PINCH ROLLER ⑬ VERTICAL POST
■SHAPE & EQUIPMENT OF DVN-14/20F6N 1. DVN-14F6N/DVN-20F6N 1-1. FRONT OF TV/VCR ;;;; ;;;; ;;;; ;;;; ;;;; ;;;; FRONT DOOR 1-2.
1-3. REAR OF TV/VCR (DVN-14F6N ONLY) VHF INPUT * Rear of TV/VCR's Shape of DVN-20F6N is similar to DVN-14F6N'S VHF Input connect VHF antenna to this terminal.
2. PANEL VIEW 2-1. FRONT PANEL The section below summarizes the buttons, controls, and terminals that you will use with your TV. Your TV/VCR's front Panel Below you will find short descriptions of the buttons and indicators on the front panel. These are used following functions. ;; 1 VIDEO IN jack Use this jack to receive a video signal from another A/V component. 2 AUDIO IN jack Use this jack to receive an audio signal from another A/V component.
3. Remote controller (DVN-14F6N/20F6N) 1 POWER Use this button to turn your TV/VCR on or off. 2 TV/CATV Use the button to set up your TV/VCR to receive signals from an antenna (TV) or a cable system (CATV). POWER MUTE RECALL 2 3 1 TV/CATV 1 2 TV/LINE 4 5 6 3 6 0 STOP SLEEP 8 9 0 100 4 RESET Press this button to reset the counter to 0:00:00. 5 O STOP Press this button to automatically rewind the tape to the 0:00:00 point.
13 MUTE Use to turn the TV/VCR's sound on and off. 13 POWER MUTE RECALL 14 TV/CATV TV/LINE 1 2 4 5 3 6 15 7 COUNTER RESET 0 STOP SLEEP 8 9 0 100 VISS 16 17 VOL/V-LOCK CH/TRK 18 REC ON/OFF MENU REW REC/OTR PLAY STOP//EJECT PAUSE/STILL CLEAR FF 19 20 21 22 SPEED 23 24 REMOTE CONTROLLER R-35A01 14 RECALL Press this button to display the current time, the counter, channel number or other status items.
■ ELECTRICAL ADJUSTMENTS 1. SERVO 1-1) X-path and P2, P3 Adjustment Item X-path P2, P3 Mode PLAY Adjustment parts CORN SCREW P2, P3 Check point PY09 Location of Adjustment Parts MAIN PCB PY09 PY05 Test equipments Oscilloscope Test tape DN-1 Input signal Observation Waveform Horizontal Axis : S/DIV Vertical Axis : CH1 : H/SW, CH2 : ENVELOPE Y/C BOARD ⊕RN90 DECK A'S MAIN PCB Adjustment Procedure 1. Preparation 1) Set the AUTO TRACKING to OFF using REMOCON.
1-2) PLAYBACK PHASE Adjustment Mode Play Adjustment parts RN90 Check point RY05 Test equipments Oscilloscope Location of Adjustment Parts MAIN PCB PY09 PY05 Test tape DN-1 Input signal Observation Waveform Horizontal Axis : 100µS/DIV Vertical Axis : CH1 : SW30, CH2:V.OUT Y/C BOARD ⊕RN90 DECK A'S • Adjustment Procedure 1. Preparation 1) Play back the Test tape (Color Bar). 2) Connect scope's connector to PY 09 3) Set the Oscilloscope to the chop mode.
2. AUDIO 2-1) AUDIO CIRCUIT ADJUSTMENT METHOD Item Audio Record Bias Mode Adjustment parts Check point Test equipments Test tape REC RU57 RC HEAD 10Ω Audio level meter Blank tape Location of Adjustment Parts MAIN PCB PY05 PY09 ⊕RU57 Input signal Observation Waveform Horizontal Axis : Vertical Axis : Y/C BOARD RC HEAD DECK A'S MAIN PCB PARTS SIDE • Adjustment Procedure 1. Preparation 1) Set REC BAIS to ON mode using REMOCON. (then, front pannel's REC LED will be lighted up.
2-2) Audio Azimuth Adjustment Item Audio Azimuth Adjustment Mode PLAY Adjustment parts AC HEAD'S SCREW Check point P602 Osilloscope Location of Adjustment Parts MAIN PCB P602 ・・・ PY05 PY09 Test equipments Signal GEN. Test tape DN-2 MONO Bar Observation Waveform Horizontal Axis : 0.1mS/DIV Vertical Axis : 0.1V/DIV Y/C BOARD RC HEAD DECK A'S MAIN PCB PARTS SIDE • Adjustment Procedure 1. Preparation 1) Set the VCR to the PLAY mode 2) Set the Scope connector to the P602.
3. VIDEO 3-1) Y NOISE REDUCTION Mode EE Adjustment parts RY 34 Check point PY05, PY09 Test equipments Oscilloscope Signal gen. Location of Adjustment Parts Test tape Input signal Multi Burst with 3.58 MHz Observation Waveform Horizontal Axis : 10µS/DIV Vertical Axis : 20 mV/DIV Y/C PCB PY05 ⊕RY34 IY03 IY01 CH-2 (PY05YNR) IY02 PAY01 PAY02 Horizontal:10µs/DIV Vertical:20mv/DIV Y/C PCB SOLDER SIDE • Adjustment Procedure 1. Preparation 1) Supply the MULTI BURST signal to the VIDEO IN JACK. 2.
3-2) COLOR NOISE REDUCTION Mode EE Adjustment parts RY 91 Check point PY09 Test equipments Signal gen. Oscilloscope Location of Adjustment Parts Input signal Color Bar Observation Waveform Horizontal Axis : 10µS/DIV Vertical Axis : 50 mV/DIV Y/C PCB PY05 Test tape PY09 ⊕RY91 IY03 IY01 CH-2(PY09(NR) IY02 PAY01 PAY02 Horizontal:10µs/DIV Vertical:50mv/DIV Y/C PCB SOLDER SIDE • Adjustment Procedure 1. Preparation 1) Supply the Color bar signal to the VIDEO LINE IN JACK. 2) Supply 5V to RY05. 2.
■ SIGNAL FLOW 1. VIDEO & AUDIO 1-1. FROM RF TO COMPOSITE VIDEO When the TIMER IC (I701) selects a certain channel from antenna, CLOCK, DATA, and ENABLE of I701 signals are inputted to the TUNER. So, TUNER(U101) tunes up a certain channel frequency by means of PLL circuit operation and output IF (Intermediate Frequency) signal. This IF signal through Q103, PRE-AMP stage, and SAW FILTER is inputted to I501 #8 and #9, and it is optimized by VCO and AFT.
SWITCHING TABLE OF I503 MODE PIN RF (EE) A/V PLAY TOGGLE 5 L L H VIDEO 6 H L L AUDIO 12 L H H AUDIO 13 H H L VIDEO * The input signal is transmitted to putput port when switching port is at logically high state.
2. Power circuit (Power supply circuit) 2-1. Abstract And Function It selects SMPS(SWITCHING MODE POWER SUPPLY) which is possible to put in from AC 108V~132V/60Hz with SANKEN Ic STR-S5707 and supply the stable voltage which each circuit needs. The voltage which electric resources circuit supplies is followed. NO.
2) Function of Each Termiinal No.
2-3. SMPS BASIC OPERATING DESCRIPTION 1) Power supply block circuit F801 AC 125V 4A PWC1 C801 O.1U(M) AC250V D802-D805 :1S1888 L801 TLF-472BE T810 TSM-4242A3 C802-C805 4700P 500V D803 C803 D805 C805 R812 120K 1/2W R803 1 OHM 7W CEMENT Z801 SVC2710 VARISTOR R804 2.2M(COMP) 1/2W D802 C802 D804 C804 C806 330U(LWF) 200V 8 9 7 10 6 11 5 12 R806 36K 2W R813 100K 1/4W Vin 1 C809 10U 100V 4 START UP DVP LATCM PRE REA 7 OCP 4 3 REF T.S.
3. DEFLECTION CIRCUIT Vertical, Horizental drive pulses are out of M52335ASP(I501). This vertical drive pulses are connected to Vertical Drive IC TA8445K(I301) and drive vertical deflection coils. This horizental deflection drive pulses by driving horizental output circuits drive horizental deflection coils and supply 26.5v, 180v, high voltage 25kV, focus voltage and screen voltage by driving FBT. 4. u-COM CIRCUITS. Timer IC is M37267MX(I701) made by Mitsubish.
6. SERVO/SYSCON CIRCUIT OPERATION 1) summary • When power supply is supplied to TV/VCR, Servo-Syscon 1 Chip IC confirms the driving condition of DECK by checking CAM SW from DECK. And it gets capstan Motor worked and is operated as initial Mode. This is ready for receiving the serial data from timer IC after proper operating according to the driving condition of Deck and the existence of tape or not.
2. REC mode VIDEO IN VIDEO OUT 31 REC EQ 28 IY01 LA7423A Y/C PROCESS IC 9 11 17 PRE-AMP IC 7 15 1 4 18 7.1M LPF 4 IY02 LC89960 IH CCD IC IY03 LA7411 8 14 HA SW R/T R/T REC "H" 1 8 • Signal is put in to #31 of IY01(LA7423A), and it is seperated into Luminance and Chroma within IC.FM modulated luminance signal is put in to #34 and low-frequency transformed color signal is put in to #14.
■ IMPORTANT IC'S OPERATION ■ IY03 (LA7411) 1. Case Outline : DIP-24S (300mil) Plastic Package 2. Application : VHS format VTR Record and Playback Head Amplifiers 3. Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topg Tstg Conditions Ta ≦ 6.5°C Ratings 7.0 700 -10 to +65 -40 to +150 Unit V mW °C °C Ratings 5.0 4.80 to 5.50 Unit V V 4.
6. Pin Function Table No Pin-function 1 HA (EP/SP) Type DC voltage(V) Input/Output configuration Remarks 1kΩ HA COMP EP 100kΩ 2 RF-SW (REC-MUTE) 1.6V RF COMP 1.0V RECMUTE COMP 3.2V H-SYNC 1.0V 20kΩ 80kΩ REC-H PB O 1.2V 80kΩ 5 PB See attached sheet 100Ω REC 0 20kΩ 6 22 GND 7 PB-OUT PB 2.3 PB OUT 100Ω REC-C-IN 8 REC 3.6 REC-Y-IN REC 3.6 44 3.2V OFF 2.0V 1.6V REC ON REC PB VCC ENV DET OUT LCH 20kΩ REC/PB COMP 5 HCH Syac H 1.5V L H.
No Pin-function 9 AGC-FLT Type DC voltage(V) PB 0 REC 1.6 PB 2.5 Input/Output configuration 20k 10k 10 REC-CUR ADJ2 Remarks 500 VCC 4V : +3.5dB 2.5V : ±0dB (OPEN) 100 COMP 100 REC 2.5 PB 4.5 REC 5.0 PB 0 REC 1.7 PB 0 REC 4.2 1V : -6dB COMP 11 REC-CUR ADJI 12 VCC 13 REC-BIAS 14 16 19 REC-OUT PB Amp 2'nd Filt 1k 5k From REC ACC 1k 16.7k VCC PB 2.0 1.5k 1.6k REC 10k 3.6 45 3.
No Pin-function 17 20 PB-L-IN PB-H-IN Type DC voltage(V) PB 0.7 REC 0 Input/Output configuration Remarks REC ON VCC 18 21 PB-L-SW PB-H-SW PB REC ON 0 ON resistance 4 to 6Ω PB ON REC 15 23 24 4.2 NC 7. Pin Operation VIDEO PREAMP IC LA7411 PIN MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 STOP 0 0 0 0 0.9 0 2.3 0 0 2.6 5.1 5.1 0 0 5.2 2.1 0.7 0 2.1 0.7 0 0 0 0 REC 0 0 0 5.2 0 0 3.5 0 1.6 .2.6 4.3 5.2 1.7 4.2 5.2 3.8 0.7 4.2 3.8 0.9 4.2 0 0 0 PLAY 0 0 0 0 0.
■ IY02 (LC89960) 1. Overview The SANYO LC89960 is a 1H delay line for NTSC television systems. Only an external low-pass filter is required to implement a 1H delay line. 2. Features • Single 5V power supply. • 1H delay signal can be obtained with low-pass filter and 3.58MHz clock input. • Minimum number of external components required because of timing generator, bias generator, output Amp, on chipped. • The phase of output signal is reversed to the phase of input signal. 3. Functions.
■ IY01 (LA7423A) 1. Case Outline : DIP-36S(400mil) Plastic Package 2. Application : VHS VTR Video signal Processor (Y/C single-chip) 3. Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topg Tstg Conditions Ta ≦ 65°C Ratings 7.0 1070 -10 to + 65 -40 to + 150 Unit V mW °C °C 4.
5. IY01 (LA7423A : Y/C PROCESS IC) No Pin-function Type voltage(V) Signal waveform SYNC-DET -OUT 1 DC S-DET-OUT REC-Y REC = 2.4V MADE. DE. EMPH-OUT PB = 2.0V 2 REC = 3.0V 3 CLAMP PB = 3.2V EMPH-OUT REC = 2.1V R/P CTL PB = 4.4V 4 REC = 2.1V 5 MAIN-EMPH -FILT PB = 4.
No Pin-function 7 MODE-CTL Type voltage(V) Signal waveform SP 0~1.5 [V] LP 1.5~3.2 [V] EP 3.2~5.0 [V] REC = 3V 8 VCA-FILT DC PB = 3V REC = 2.2V 9 VCA-IN PB = 2.2V 10 GND 0V REC = 1.0V 11 CCD DRIVE PB = 1.0V PIC-CTL REC = 3V SOFT : 2.0~2.5V HARD : 2.6V~3.2V PB = 3V EDIT when over 3.
No Pin-function Type voltage(V) Signal waveform REC = 2.5V 13 NC-CTL PB = 2.5V REC C-OUR REC =2.4V PB-YC-IN PB = 3.2V AGC-TC 1 REC = 2.4V BALANCER PB = 2.3V REC-APC- REC = 2.3V under 1.5V N.C OFF 2.0~3.0V N.C CTL over 3.8V Y/CMix OFF (N.C. Center) 14 Y-FM +Low Chroma 15 16 FILT TRICK-H PB = over 3.5V (SP Mode) REC = 3.8V 17 VXO-IN PB = 3.8V REC = 2.3V 18 XO-OUT PB = 2.
No Pin-function Type voltage(V) Signal waveform REC = 2.8V 19 SLD-FILT PB = 2.8V REC =2.8V 20 AFC/APC FILT PB = 2.8V REC = 1.9V XO mode when over 3.5V 21 C-OUT PB = 1.9V ANR ON when over 3.5V Color = 1.9V 22 KILL-FILT Killer = 3.1V REC = 1.7V 23 CNR-CD-IN PB = 1.7V CNR OFF when over 2.5V 24 VCC-2 5.0V D.
No Pin-function Type voltage(V) 25 REG = 4.2 4.2V 26 SYNC OUT Signal waveform D.C 1.75V when CNR mode 27 VCC-1 28 VIDEO OUT 29 QV. QH INS.
No Pin-function Type voltage(V) Signal waveform REC = 2.7V 31 VIDEO-IN PB = 2.7V REC = 1.6V 32 AGC-TC2 D.C PB = 1.6V REC = 0V 33 SVHS-FM-IN PB = 3.7V Normal VHS 0V MOD-OUT REC = 3.0V DOC-STOP-H PB = 3.6V 34 3.95 DOC-STOP REC = 0V 35 NOR-FM-IN PB = 3.8V REC = 1V 36 FM-EQ-OUT PB = 3.
■IU01 (BA7790LS) 1. FUNCTION (1) Circuit essential for a standard sound signal processing system as a PB AMP, REC AMP, ALC circuit, EQ selecting switch and high voltage head switch have been intergrated onto a single 1 chip. (2) Built-in LINE/TUNER INPUT selecting switch. (3) Built-in summary 3 mode EQ switch and it can be obtained EQ carateristics of each mode. (4) PB AMP is low noise and high performance. (5) Built-in ALC circuit with variable ALC level for setting.
5. Terminal Function Table Terminal No. Description Function Terminal Voltage Termanal Form 1 HEAD EQ Selecting swiitch of condenser for head resonance 0.0V 220kΩ/27Ω(ON) 2 PB IN PB AMP input/PB side head switch 3.4V REC : 120kΩ 3 REC HSW REC side high voltage head switch 0.0V REC : 11Ω(ON) REC : OPEN 4 GND GND (for PB AMP, Head switch) 0.0V – 5 RIPPLE FILTER Ripple filter 9.0V 10kΩ(Vcc) 6 PB NFB PB AMP fecdback 3.5V B(NPN) 7 Vcc Vcc 9.
■ IN05(BA6209) 1. Function : Reversible Motor Driver 2. Pin Operation V.OUT1 VZ.1 V.REF F.IN R.IN VCC1 VCC2 VZ.2 V.OUT2 1 2 3 4 5 6 7 8 9 10 MOTOR 12V 3.9 2W CN10 0.0Iμ RN21 CND IN05 BA6209 LM DRIVE To DECK CCN11 0.01μ DN13 ZPD 6.2 RCN 22 3.3K 51 + CN35 100U 25V LM (+) LM (-) 50 Pin 51 : LM ON(H) Pin 50 : LM (+)/(-) IN01 ■ IN03 (MC4558C) 1. Function : Dual wideband operational amplifier 2. Pin Operation DUAL OP AMP MC4558C PIN MODE 1 2 3 4 5 6 7 8 STOP 3.2 3.1 3.1 0 2.
■ I301(TA8445K) RAMP GENERATER 50/60Hz S/W ⑩ ⑪ ⑫ Output Vcc ⑨ V. OUT Pump up Vcc ⑧ GND ⑦ Phase compensation ⑥ Pump up output ⑤ V. NFB ④ 50/60 SW ③ V. SIZE INPUT Drive Vcc ② Vertical Out Pump up RAMP Vertical trig ① Vertical Drive 1. Operating Conclitions (Ta = 25°C) Item Symbol Min Typ. Max. Unit Drive vcc VCC1 8.1 9.0 9.9 V Pump up Vcc VCC2 – 2.4 2.9 V Vertical Output Vcc I11 P-P – – 2.2 Ap-p 2.
■ IN01 (Syscon : TMP91C642AN-3178) SYSCON IN01 PIN MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 STOP 5.2 3.5 4.6 5.2 0 5.2 0 0 3.6 2.8 5.2 0 5.2 0 0 0 5 0 0 4.7 5.2 0 0 0 0 4.5 3.7 3.7 0 2.4 0 0 0 0 5.2 5.2 0 5.2 2.9 5.2 0 0 0 5.2 2.5 REC 5.2 3.4 4.6 5.2 0 5.2 0 0 3.1 2.8 0 0 5.2 var 0 0 2.6 4.8 2.7 3.2 5.2 0 2.6 0 0 var 3.7 3.7 0 2.4 2.8 0 0 0 0 5.2 5.2 0 5.2 3.1 5.2 0 0 5.2 2.5 PLAY 5.2 3.8 4.6 5.2 0 5.2 0 0 3.3 2.
PIN MODE 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 STOP 5.2 2.2 2.1 0 0 0 0 0 2.1 2.6 5 5.2 5.3 3.1 0.6 5.3 5.3 0 5.3 REC 5.2 2.2 2.1 0 0 0 0 0 3.5 2.6 5 5.2 5.3 3.1 0 5.3 5.3 0 5.3 PLAY 5.2 2.2 2.1 0 0 0 0 0 3.5 2.6 5 5.2 5.3 3.1 2.9 5.3 5.3 0 5.3 REW/FWD 5.2 2.2 2.1 0 0 0 0 0 3.5 2.1 5 5.2 5.3 3.1 2.1 5.3 5.3 0 5.3 60 REV/FF 5.2 2.2 2.1 0 0 0 0 0 2.1 5.2 5 5.2 5.3 3.1 2.4 5.3 5.3 0 5.3 PAUSE 5.2 2.2 2.1 0 0 0 0 0 3.5 2.6 5 5.2 5.3 3.1 1.8 5.3 5.3 0 5.3 STILL 5.2 2.2 2.
PIN PIN NAME PIN DISCRIPTION 1 S/CLK Serial Clock 2 S/OUT Serial OUT, Contact with TIMER IC Serial IN 3 S/IN Serial IN, Contact with TIMER IN Serial OUT 4 SYNC (L) NOT USED 5 VCR/ON(L) NOT USED 6 LINE/TV NOT USED 7 NOT USED 8 C/SYNC Composite Sync 9 SLOW STEP Adjusting Vth of CTL/P, Set concerned area on 'L' when SLOW mode 10 C. I LIMITER Limit the current of CAP. M/T Set on 'L' when SLOW MODE 11 CAP F/R Switching foward(H)/reverse(L) of CAP.
PIN PIN NAME PIN DISCRIPTION 29 AUDIO SLP(H) Set 'H' When SLP mode. 30 D/PWM Drum motor control PWM output *period of PWM : 23.4KHz (6MHz/256) 31 C/PWM Capstan motor PWM output * period of PWM : 23.
PIN PIN NAME 54 CAM A 55 CAM B CAM C CAM D PIN DISCRIPTION CAM Detection input port POWER A B C D MODE 2.9 ~ 3.7 L H H H EJECT 4.35(H) 3.7 ~ 4.5 L H H L STAND-BY(INITIAL) 4.35(L) 2.2 ~ 2.9 H H H L REV 5.30(L) 2.9 ~ 3.7 H H L L STOP 2.65(L) 0.0 ~ 2.2 H H L H PLAY, QUE 2.65(H) 2.2 ~ 2.9 H L H L FF/REW 2.10(L) 4.5 ~ 5.0 H H H H CAM 5.
■ I701(Timer : M37267M6 - 101SP) 1. Pin Layout M37267M6 - 101SP HSYNC INPUT 1 HSYNC P52/R 52 R OUT VSYNC INPUT 2 VSYNC P53/G 51 G OUT AFT INPUT 3 P40/MXR/AD4 P54/B 50 B OUT 4 P41/INT2/MXG P55/OUT1 49 BLINKING OUTPUT 5 P42/TIM2/MXB P04/PWMO 48 CONTRAST PWM OUTPUT N. C. 6 P43/TIM3/MXOUT P05/PWM1 47 BRIGHT PWM OUTPUT N. C. 7 P24/AD3 P06/PWM2 46 SHARPNESS PWM OUTPUT N. C.
2. Pin discription PIN NO NO NAME DISCRIPTION 1/O ACTIVE 1 HSYNC HSYNC HSYNC INPUT TERMINAL I 2 VSYNC VSYNC V SYNC INPUT TERMINAL I 3 P40/MXR/AD4 AFT AFT SIGNAL INPUT TERMINAL I 4 P41/INT2/MXG N. C. NOT USED – 5 P42/TIM2/MXB SD SYNC DETECT INPUT TERMINAL I 6 P43/TIM3/MXOUT N. C. NOT USED – 7 P24/AD3 N. C. NOT USED – 8 P25/AD2 N. C. NOT USED – 9 P26/AD1 MONITOR ON MONITOR POWER ON OUTPUT SIGNAL O LOW 10 P27 S.
PIN NO NO NAME DISCRIPTION 1/O ACTIVE 24 XIN X IN MAIN CLOCK (4.19MHz) I 25 XOUT X OUT MAIN CLOCK (4.19MHz) O 26 VSS GND MAIN CPU GND TERMINAL – 27 VCC VCC MAIN CPU POWER TERMINAL (+5 CONNECT) – 28 P63/OSC2/XCIN OSC2 SUB CLOCK (32.768KHz) I 29 P64/OSC2/XCOUT OSC1 SUB CLOCK (32.768KHz) O 30 RESET RESET CPU RESET INPUT TERMINAL I 31 P31 N. C. NOT USED – 32 P30 N. C. NOT USED – 33 P03 N. C. NOT USED – 34 P16 N. C. NOT USED – 35 P05 N. C.
PIN NO NO NAME DISCRIPTION 1/O 47 P05/PWM1 BRIGHT BRIGHT PWM OUTPUT TERMINAL I 48 P04/PWM0 CONTRAST CONTRAST PWM OUTPUT TERMINAL O 49 P55/OUT1 BLANK BLINKING OUTPUT TERMINAL O 50 P54/B B B OUTPUT TERMINAL O 51 P53/G G G OUTPUT TERMINAL I 52 P52/R R R OUTPUT TERMINAL O 67 ACTIVE
■ I501 (CHROMA IC : M52335SP - 600) 1. Pin Layout 1501 M52335SP VIF IN 10 VCC-1(VIF SIF) 11 APC FILTER 12 VCC-2(DEF) 13 AFC FILTER 14 AFC FBP IN 15 32fH OSC 16 X-RAY PROTECT 17 COINCIDENCE OUT 18 V. OUT 19 Vcc-2(VC) 20 H.
2. DESCRIPTION OF PIN Pin No. Name Voltage and wave Information Peripheral circuit of pins 9V 1 EXT AUDIO IN The Input impedance is 18kΩ. Add a blas to outside as shown right for use. 2.4k 4.7k 3.25V Description of function 2.4k 18k 3.9k 4.5V 2k 10k 30p 25k 10k 10k 2 SOUND DET COIL 25k 20p 5p 2.5V 9V 0.01 µF GND to EXT(Y-DL) OPEN to TV(Y-DL) Vcc(5V) to TV(S input) 10k Sound direct output pin. for de-emphasis, connect a capacitor between this pin and GND. 2.
DESCRIPTION OF PIN (cont). Pin No. 5 Name IF AGC FILTER Voltage and wave Information Peripheral circuit of pins Description of function Dynamic AGC circuit is used to improve AGC response characteristics. Set a filter constant to avoid a sag around 70dBµ. 4.4 to 1.5V 1k IF AGC Voltage 4.4V 7.5k 50dBµ RF AGC DELAYDJ. 100dBµ IF Input RFAGC delay point is set by the voltage applied to this pin. 1k 6 70dBµ –––––– 2k 7 GND-1 (YIF SIF) –––––– Input resistance is 1kΩ. Input capacitance is 7pF.
DESCRIPTION OF PIN (cont). Pin No. 12 13 Name Voltage and wave Information Peripheral circuit of pins Description of function Power supply pin for horizontal and vertical systems. it'scurrent is about 34mA. H. Vcc AFC FILTER Horizontal AFC filter pin. Action against VCR skews can be taken by increasing an external resistor R to provide a faster response speed, However, horizontal jitters in a weak electric field will increase. 24k 6.25V 3k 6.25V R 14 AFC FSP IN 4V 1.
DESCRIPTION OF PIN (cont). Pin No. 17 Name COINCIDENCE OUT Voltage and wave Information Peripheral circuit of pins 8V(Synchronous) to 0V(Asynchronous) Voltage goes up if a sync signal is entered and horizontal AFC is locked; otherwise, the voltage goes down. therefore, the pin can be also used as a MUTE detector. At that time, pay attention to high impedance. 1k Pulse as shown below is putput. 60k 18 Description of function V.
DESCRIPTION OF PIN (cont). Pin No. Name Voltage and wave Information Peripheral circuit of pins 10k 600 Description of function 200 30k 20 Y. OUT 10k 2k Video output pin. when a flybaxk pulse is entered for blanking from outside, a blanking pulse is entered internally and a chroma symbol is also blanked. The blanking threshold voltage is 7.1V. 200 1k 60 23 24 25 26 27 28 R-Y OUT G-Y OUT B-Y OUT Open emitter output with maximum current of about 5mA. 5.
DESCRIPTION OF PIN (cont). Pin No. Name Voltage and wave Information Peripheral circuit of pins Description of function Applying voltage of 2.5V or more causes blanking 30 Vth 2.5V FAST BLK IN 300 0V 50k Cap challenge is changed by R. As R is decreased, the cap chaltenge becomes narrower, but phase, jitters are reduced. 4k 31 APC FILTER 6.5V R 666 666 Use XTAL of series capacitance type. 300 3p 1k 32 CHROMA OSC 300 1k 6.8V 1k M351T01 Vcc 3k R 33 2k ACC FILTER 22k 1.
DESCRIPTION OF PIN (cont). Pin No. Name Voltage and wave Information Peripheral circuit of pins Description of function Pin holding the most dark part of a video signal. As R is increased, the black peak is held; contrarily, the peak gets cloaer to an average. R 34 BLACK HOLD About 3.2V 1.5k 1.5k 1.15k 375 2k To decrease killer sensitivity, connect a several M of resistor between the pin and GND. 4.7k 35 KILLER FILTER 7.6V at signal input 1.7k 3.2k Can be controlled by 5.
DESCRIPTION OF PIN (cont). Pin No. Name Voltage and wave Information Peripheral circuit of pins Description of function Used to connect a hold capacitor. 3.9k 39 PEDESTAL CLAMP 1k About 2.2V 1.07k 1.4k 1.2k 1.5k 15k 40 VIDEO TONE CONT. Sharpness control pin. By increasing voltage, the pin is set to soft side. 10k 4.5V 6.2k 4.5V 41 Y IN Make an entry at low input impedance to avoid pedestal clamp. Standard coupling capacltor is 0.1µ F. Make an entry at 0.5Vp-p. 3.
DESCRIPTION OF PIN (cont). Pin No. Name Voltage and wave Information Peripheral circuit of pins Description of function Output at 1.5Vp-p. 50 43 Y SW OUT 2.5V 1.125k 1k 44 SYNC IN. 6.6V Sync separation of emitter input type. Vertical sync separation is done inside the 1C. 7.35V Make an entry at 1V p-p. 150 45 TV IN 2.5V 40k 2.5V 850 46 47 VCO COIL 4V 77 850 Reference tuning capacitance is 27pF.
DESCRIPTION OF PIN (cont). Pin No. Name Voltage and wave Information Peripheral circuit of pins Description of function Volume control pin. 20p 48 SIF IN/ATT 4.5V 15k 10k 29.3p 10k 2.4k 4.5V Applying voltage 0f 2.5v or more defeats AFT. 49 AFT DEFEAT 23.3k 10k Current output type. As load resistor R is increased, detector sensitlvity becomes higher but offlot becomed larger. 1k 50 AFT OUT 8.2 to 0.5V Output at 1.4Vp-p 1.75V is applied to sink tip. 7.5k 51 12.5k VIDEO OUT 32.5k 2.
DESCRIPTION OF PIN (cont). Pin No. Name Voltage and wave Information Peripheral circuit of pins 0.4mA 52 50 RF AGC OUT 0.4mA 79 Description of function current output type. Max. 0.4mA.
■ IMPORTANT SIGNAL WAVEFORMS ① IY01 PIN 14 (PB ENVELOPE) ② IN03 PIN 1(CTL HEAD –) ③ IY01 PIN 2 (PLAY) ④ IN01 PIN 20 (CTL PULSE) ⑤ I501 PIN 38 ⑥ IY01 PIN 2 (REC) 80
⑦ I501 PIN 43 & IY01 PIN 31 VIDEO ⑧ IY01 PIN 28 VIDEO OUT (PLAY) ⑨ IY01 PIN 26 (C SYNC) ⑩ P504 PIN 4 (-Y) ⑪ PH502 PIN 2 (HEATER PULSE) 81
■ AUDIO WAVE FORMS.
■ TROUBLESHOOTING ACCORDING TO CAUSE AND SYMPTOM 1. POWER SUPPLY UNIT 2. VERTICAL, HORIZONTAL UNIT 3. SERVO/SYSCON UNIT 4. VIDEO UNIT 5. AUDIO UNIT – Before Troubleshooting, Read followings. • Picture is not appeared when occurs following items. 1) When power supply is not supplied 2) When horizontal output TR is dead 3) When operation of over current protecting circuit. 4) When +125V is not supplied to FBT. • Suggestions when service power supply unit.
1. Power supply unit A.
– check 125V unit Does over current protecting circuit operate ? No Check R832, R809 Yes Are voltages on base & collector terminal of Q402 normal ? No Check T401 and Q402 Yes Is 26.
2. VERTICAL, HORIZONTAL UNIT. A. Horizontal Line is only appeared on the screen.
B. Horizontal screen is abnormal Yes Is collector waveform of Q402 normal ? No Is base waveform of Q401 normal ? Yes Check T401 and L401 Yes Check the capacity of C412 and soldering condition. Yes Check R406, C413, L402, C409, D404, R407.
3. SERVO/SYSCON UNIT A. Playback picture is not good. Yes Noise appears although adjusting tracking No Adjust tracking Yes Noise shakes up and down on the screen. No Noise appears although change cassette tape.
B. Playback picture is not good. Yes Noise appears over the entire screen No The entire screen scrolls up and down Yes Yes Are SW pulse applied to PRE-AMP circuit ? Check P.G Adjustment No Is SW pulse suppiled from pin 23 of IN01 No Check D. PG input IN01 pin 18 and connector (PY04) Yes Yes Check patten Is Enve. waveform supplied to pin 3 of PY 09 No Yes Check connector, Head Amp and Clean heads. Check VIDEO circuit. C.
D. Durm Motor dose not rotate. Is Motor 12V supplied to PY04 pin 1 No No Is I805 operated ? Yes Yes Is D. PWM applied pin 30 of IN01 ? Check IN05 No Check PY04 and RCN47, RN44, CN21, CCN44 Yes Check connector PY04 and DRUM Motor E. Capatan Motor does not rotate. Is Motor 12V supplied to PY03 pin ⑦ ? No Chock I805 Yes Is the voltage of pin ⑥ PY03 2~3.5V ? No Check circuit of RN77, RN76, RN75 Yes Is the voltage of PY03 pin ④ 2.5V ? No Check RN67, RN66 Yes Is CAP.
F. Durm Motor and Capstan M/T rotate at irregular speed (In REC mode) No Is C. sync applied to pin 12 of IN01 No Check C. Sync (PIN26) of VIDEO IC (IY01) and patten Yes Check IN01 G. The instrunment goes into the emergency mode. Though AC power is connected, STAND-BY LED blinks. Is EVER 6V supplied ? No Check I803 Yes No Does XN01 crystal oscillate ? Check IN01 and XN01 Yes Is CAM SW DATA at pin 54 and 55 of IN01 Correct? No Yes Check IN05 and loading motor.
H. Cassette loading inoperative. Is Motor 12V IN05 pin ⑦ and ⑨ supplied ? No Check I805 YES Are there changes in the cam data when the cassette is in ? No Check connector PAN04 pin ⑦, ⑥, ⑤ and ④ and CAM SW and DECK Mechanism YES Is 6V applied to pin ④ of IN05 when casette IN ? No Is 5V supplied at pin of IN01? No Check IN01 YES YES Check pattern. YES Is 5V applied to pin ⑥ of IN05 when cassette IN ? No No Check pattern. YES Is 6.
4. VIDEO UNIT A. EE MODE Picture NG Yes Is video signal input into pin 42 (Video jack) and 45 of I501 No Check PIF circuit and LINE IN JACK Yes Is 5V supplied at pin 10 and 9V supplied at pin 12 of I501 No Check ON/OFF 9V circuit.
B.
C.
D. Self Record playback video signal NG Yes Check EP mode Yes Is REC(H) output from PAY01 pin3? No Check QY06 and IN01 pin36 Yes Is REC color signal output from IY01 pin 14 ? No Is signal input into IY01 pin 31 ? Yes Is luminance signal output from IY01 pin 2 ? No Check IY01 Yes Is luminance input to IY01 pin3? No Check QY01 and side components Yes Is REC-Y(FM) signal output from IY01 pin34? No Check IY01 Yes Is C. sync : signal supplied IY01 pin 3 ? No Check C.
5. AUDIO UNIT. A.
B.
C. This flow chart must be used only in Record Mode. Audio sound is not output when self Record-Playback AV RF/AV No Check I503 pin 12 RF(L)/AV(H) Check I701 Yes RF No Check I503 pin 11 Check I503 pin 6 RF(H)/AV(L) Check A/V Jack No 'H' Yes Check I701 Yes Check I501 pin 3 Yes Check Q105 No Check I503 pin 8 No Yes Change I501 'L" Check IU01 pin 24 When recording Check QN06 and IN01 'H' No Does LU06 pin 5 oscillate ? No No Check power circuit No QU05 and side components.
■■ ELECTRICAL PARTS LIST 1. STANDARD PART NUMBER CODING 1-1. RESISTOR CODING 1. Fixed Resistor Coding Type of Resistor Composition Resistor Carbon Resistor Fusible Resistor Ceramic Resistor Metal Film Resistor Metal-Oxide Film Resistor W Wire Wound Resistor X Cement Resistor Y Chip Resistor C D F K N S Type of Resistor Code Wattage -A 1/6w -B 1/8W -4 1/4W -2 1/2W 01 1W 02 2W Code A B C D E F G H G H J K X Z Distance Distance 2.5mm 5.0mm 7.5mm 10.0mm 12.5mm 15.0mm 17.5mm 20.0mm 17.5mm 20.0mm 22.5mm 25.
1-2. CAPACITOR CODING 1. Normal Code A B C E L M S N Q T Distance (Same As Fixed Resistor) Type Type Aluminum Barrier Layer Ceramic Electrolytic Line Across Mylar Styrol Metalized Polyester Mica Oil Tantal Shape or Characteristic Value (Same as Fixed Resistor) Distance Code Voltage 0J 6.3V 1A 10V 1C 16V 1D 20V 1E 25V 1V 35V 1G 40V 1H 50V 1J 63V 2A 100V 2B 125V 2C 160V 2D 200V 2E 250V 2F 315V (Same as Fixed Resistor) 2.
✐ 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) 2.PARTS LIST LOC.
LOC. PART-CODE PART-NAME PART-DESCRIPTION R911 RD-AZ151J- R CARBON FILM 1/6 150 OHM J R912 RD-AZ151J- R CARBON FILM 1/6 150 OHM J R913 RD-AZ151J- R CARBON FILM 1/6 150 OHM J R914 RD-AZ821J- R CARBON FILM 1/6 820 OHM J R915 RD-AZ821J- R CARBON FILM 1/6 820 OHM J R916 RD-AZ821J- R CARBON FILM 1/6 820 OHM J R917 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R918 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R919 85801065GY WIRE COPPER AWG22 1/0.
LOC. PART-CODE PART-NAME PART-DESCRIPTION C816 CEXF2C101V C ELECTRO 160V RSS 100MF (16X25) TP C818 CCZF1E103Z C CERA 25V F 0.01MF Z (AXIAL) C821 CEXF1H220V C ELECTRO 50V RSS 22MF (5X11) TP D301 DBYV95C—- DIODE BYV95C (TAPPING) D302 D1N4003—- DIODE 1N4003 (TAPPING) D401 DBYV95C—- DIODE BYV95C (TAPPING) D402 D1N4003—- DIODE 1N4003 (TAPPING) D404 DBYV95C—- DIODE BYV95C (TAPPING) I301 1TA8445K— IC TA8445K I301A 4857027103 HEAT SINK ETSD T1.
LOC. PART-CODE PART-NAME PART-DESCRIPTION R316 RD-2Z102J- R CARBON FILM 1/2 1K OHM J R402 RF01Y369J- R FUSIBLE 1W 3.6 OHM J RF01Y479J- R FUSIBLE 1W 4.7 OHM J R403 RF01Y479J- R FUSIBLE 1W 4.7 OHM J R405 RS02Y560JS R M-OXIDE FILM 2W 56 OHM J SMALL R406 RS01Y272J- R M-OXIDE FILM 1W 2.7K OHM J R407 RS01Y562J- R M-OXIDE FILM 1W 5.
LOC. PART-CODE PART-NAME PART-DESCRIPTION CCY26 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCY27 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 CCY28 HCQK390JCA C CHIP CERA 50V CH 39PF J 2012 CCY29 HCQK680JCA C CHIP CERA 50V CH 68PF J 2012 CCY30 HCBK103KCA C CHIP CERA 50V X7R 0.
LOC. PART-CODE PART-NAME PART-DESCRIPTION CY19 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP CY23 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP CY25 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP CY31 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP CY37 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP CY38 CEXF1H220V C ELECTRO 50V RSS 22MF (5X11) TP CY41 CEXF1E101V C ELECTRO 25V RSS 100MF (6.
LOC.
LOC. PART-CODE PART-NAME PART-DESCRIPTION RCY40 HRFT331JCA R CHIP 1/10 330 OHM J 2012 RCY41 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RCY42 HRFT152JCA R CHIP 1/10 1.5K OHM J 2012 RCY43 HRFT222JCA R CHIP 1/10 2.2K OHM J 2012 RCY44 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RCY45 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCY46 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RCY48 HRFT822JCA R CHIP 1/10 8.
LOC. PART-CODE PART-NAME PART-DESCRIPTION RQ01 RD-AZ161J- R CARBON FILM 1/6 160 OHM J RQ02 RD-AZ161J- R CARBON FILM 1/6 160 OHM J RQ03 RD-AZ221J- R CARBON FILM 1/6 220 OHM J RQ04 RD-AZ361J- R CARBON FILM 1/6 360 OHM J RQ05 RD-AZ511J- R CARBON FILM 1/6 510 OHM J RQ06 RD-AZ112J- R CARBON FILM 1/6 1.
LOC. PART-CODE PART-NAME PART-DESCRIPTION C123 CEXF1H479V C ELECTRO 50V RSS 4.7MF (5X11) TP C126 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP C128 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C130 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP C501 CEXF1C471V C ELECTRO 16V RSS 470MF (10X12.5)TP C502 CEXF1C102V C ELECTRO 16V RSS 1000MF (10X20) TP C503 CMXM2A682J C MYLAR 100V 6800PF J TP C504 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP C505 CMXM2A103J C MYLAR 100V 0.
LOC. PART-CODE PART-NAME PART-DESCRIPTION C731 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP C732 CEXF1C102V C ELECTRO 16V RSS 1000MF (10X20) TP C733 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP C801 CL1UC3104M C LINE ACROSS WORLD AC250V 0.1UF M R.
LOC. PART-CODE PART-NAME PART-DESCRIPTION CC129 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC131 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC132 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC133 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC134 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC510 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CC511 HCBK103KCA C CHIP CERA 50V X7R 0.
LOC. PART-CODE PART-NAME PART-DESCRIPTION CCN09 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCN11 HCBK103KCA C CHIP CERA 50V X7R 0.
LOC. PART-CODE PART-NAME PART-DESCRIPTION CN27 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z (AXIAL) CN30 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP CN32 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP CN35 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP CN40 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP CN41 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP CN42 CEXF1E101V C ELECTRO 25V RSS 100MF (6.
LOC. PART-CODE PART-NAME PART-DESCRIPTION D506 D1N4148—- DIODE 1N4148 (TAPPING) D507 D1N4148—- DIODE 1N4148 (TAPPING) D508 D1N4148—- DIODE 1N4148 (TAPPING) D510 D1N4148—- DIODE 1N4148 (TAPPING) D511 D1N4148—- DIODE 1N4148 (TAPPING) D512 D1N4148—- DIODE 1N4148 (TAPPING) D513 D1N4148—- DIODE 1N4148 (TAPPING) D701 DUZ5R6BM— DIODE ZENER UZ-5.
LOC.
LOC. PART-CODE PART-NAME PART-DESCRIPTION LU03 5CPZ101K04 COIL PEAKING 100UH K (AXIAL 10.
LOC.
LOC. PART-CODE PART-NAME PART-DESCRIPTION R719 RD-AZ822J- R CARBON FILM 1/6 8.2K OHM J R723 RD-AZ272J- R CARBON FILM 1/6 2.7K OHM J R724 RD-AZ332J- R CARBON FILM 1/6 3.3K OHM J R725 RD-AZ273J- R CARBON FILM 1/6 27K OHM J R726 RD-AZ432J- R CARBON FILM 1/6 4.3K OHM J R727 RD-AZ682J- R CARBON FILM 1/6 6.8K OHM J R746 RD-AZ822J- R CARBON FILM 1/6 8.
LOC. PART-CODE PART-NAME PART-DESCRIPTION RC112 HRFT221JCA R CHIP 1/10 220 OHM J 2012 RC113 HRFT331JCA R CHIP 1/10 330 OHM J 2012 RC114 HRFT562JCA R CHIP 1/10 5.6K OHM J 2012 RC115 HRFT152JCA R CHIP 1/10 1.5K OHM J 2012 RC116 HRFT153JCA R CHIP 1/10 15K OHM J 2012 RC117 HRFT222JCA R CHIP 1/10 2.
LOC. PART-CODE PART-NAME PART-DESCRIPTION RC529 HRFT561JCA R CHIP 1/10 560 OHM J 2012 RC531 HRFT101JCA R CHIP 1/10 100 OHM J 2012 RC532 HRFT393JCA R CHIP 1/10 39K OHM J 2012 RC533 HRFT333JCA R CHIP 1/10 33K OHM J 2012 RC534 HRFT333JCA R CHIP 1/10 33K OHM J 2012 RC535 HRFT474JCA R CHIP 1/10 470K OHM J 2012 RC537 HRFT395JCA R CHIP 1/10 3.9M OHM J 2012 RC539 HRFT562JCA R CHIP 1/10 5.
LOC.
LOC. PART-CODE PART-NAME PART-DESCRIPTION RCJ20 HRFT000-CA R CHIP 1/10 0 OHM 2012 RCN06 HRFT221JCA R CHIP 1/10 220 OHM J 2012 RCN07 HRFT105JCA R CHIP 1/10 1M OHM J 2012 RCN08 HRFT752JCA R CHIP 1/10 7.5K OHM J 2012 RCN09 HRFT752JCA R CHIP 1/10 7.5K OHM J 2012 RCN11 HRFT912JCA R CHIP 1/10 9.1K OHM J 2012 RCN12 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCN13 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCN14 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCN15 HRFT472JCA R CHIP 1/10 4.
LOC. PART-CODE PART-NAME PART-DESCRIPTION RCU08 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCU09 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCU10 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCU12 HRFT153JCA R CHIP 1/10 15K OHM J 2012 RCU13 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCU14 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCU15 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCU17 HRFT105JCA R CHIP 1/10 1M OHM J 2012 RCU18 HRFT822JCA R CHIP 1/10 8.2K OHM J 2012 RCU19 HRFT682JCA R CHIP 1/10 6.
LOC. PART-CODE PART-NAME PART-DESCRIPTION RN55 RD-AZ274J- R CARBON FILM 1/6 270K OHM J RN57 RD-4Z151J- R CARBON FILM 1/4 150 OHM J RN58 RD-4Z151J- R CARBON FILM 1/4 150 OHM J RN60 RD-AZ201J- R CARBON FILM 1/6 200 OHM J RN61 RD-AZ201J- R CARBON FILM 1/6 200 OHM J RN62 RD-AZ273J- R CARBON FILM 1/6 27K OHM J RN65 RD-AZ201J- R CARBON FILM 1/6 200 OHM J RN66 RD-AZ182J- R CARBON FILM 1/6 1.8K OHM J RN67 RD-AZ182J- R CARBON FILM 1/6 1.
LOC. PART-CODE PART-NAME PART-DESCRIPTION X702 5XE8R0000E CRYSTAL QUARTZ HC-49/U 8.000000MHZ 30PPM XN01 5XE10R000E CRYSTAL QUARTZ HC-49/U 10.00000MHZ 30PPM Z101 5PDSW1003S FILTER SAW DSW 1003S Z102 5PXPS45MB- FILTER CERA TPS-4.5MB TRAP (TAPPING) Z103 5PXFSH4R5M FILTER CERA SFSH4.
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ENGINEER NOTE
DAEWOO ELECTRONICS CO., LTD. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA S/M NO : CN140N-010 PRINTED DATE: NOV.
