VX-T2170 PH SERVICE MANUAL INTEGRATED COLOR TV/VIDEO CASSETTE RECORDER BASIC TAPE MECHANISM : OVD-5 SPECIFICATIONS 110-240V AC, 50/60Hz 65W 25 kg (55 lbs.) 574 mm (W) x 365 mm (D) x 384.5 mm (H) (17 1/4 x 14 3/8 x 15 1/4 in.) TV SECTION PICTURE TUBE .................................. 406 mm (W) x 305 mm (H) (16 x 12 1/8 in.) 508 mm (diagonal) (20 in.) TUNER SYSTEM ................................ Voltage synthesized tuner CHANNEL COVERAGE ......................
TABLE OF CONTENTS SPECIFICATIONS .............................................................................................................................................................. COVER TABLE OF CONTENTS ..................................................................................................................................................... A-1 SERVICING NOTICES ON CHECKING ................................................................................................................
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual. Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc.
VCR TEST TAPE INTERCHANGEABILITY TABLE There are two types of the new alignment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (1) - (4) are recorded for the times and in the order shown below. (1) : 8min. ---> (2) : 2min. ---> (3) : 5min. ---> (4) : 5min. The TTV-MP1 (for M-PAL), TTV-MS1 (for MESECAM) and TTV-S1 (for SECAM) alignment tapes have the same contents as the previous tapes.
DISASSEMBLY INSTRUCTIONS 1-3: TV/VCR BLOCK (Refer to Fig. 1-3) 1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS 1. Remove the 2 screws 1. 2. Disconnect the following connectors: (CY757, CP353, CP503, CP502 and CP301). 3. Unlock the support 2. 4. Remove the TV/VCR Block in the direction of arrow. 1-1: BACK CABINET (Refer to Fig. 1-1) 1. Remove the 2 screws 1 and 4 screws 2. 2. Remove the 2 screws 3 which are used for holding the Back Cabinet. 3. Remove the AC cord from the AC cord hook 4. 4.
DISASSEMBLY INSTRUCTIONS 1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) NOTE 1. Remove the screw 1. 2. Remove the 3 screws 2. 3. Remove the screw 3. 4. Remove the Deck Shield Plate in the direction of arrow. When installing the Front Loading Unit 15, align the timing marker and pull the Cassette Holder Ass'y in the direction of arrow (C). (Refer to Fig. 1-6-B) Marker Deck Chassis 2 Deck Shield Plate 1 2 2 3 VCR Block Fig. 1-5 (C) 1-6: FRONT LOADING UNIT 15 AND DECK CHASSIS (Refer to Fig.
DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS 2-1: LINK GEAR (R) / CAM GEAR (Refer to Fig. 2-1) 1. 2. 3. 4. 5. Top Bracket Unlock the support 1. Remove the BOT Sensor Cover and BOT Reflector. Unlock the 3 supports 2. Remove the Side Bracket R2 and Spring Earth. Remove the Flap Lever, Link Gear (R) , Cam Gear Ass'y and BOT Lever. 2 2 Bracket R Spring Joint Gear Side Bracket L 2 1 NOTE 3 2 Lever Rec Spring 1. When installing the BOT Lever, insert the BOSS into the hole of Linl Gear (R). 2.
DISASSEMBLY INSTRUCTIONS 2-5: CASSETTE SIDE L (Refer to Fig. 2-5) 2-7: TENSION BAND (Refer to Fig. 2-7) 1. Unlock the 2 supports 1. 2. Remove the Cassette Side L. 3. Remove the Pack Spring. 4. Remove the Locker Spring. 5. Unlock the support 2. 6. Remove the Locker L. 1. Remove the Tension Arm Spring 1. 2. Remove the Tension Arm Spring 2. 3. Remove the Tension Adjust. 4. Remove the Tension Arm Ass'y. 5. Remove the Tension Band Ass'y. 6. Remove the Tension Lever 2 Ass'y.
DISASSEMBLY INSTRUCTIONS Reel Disk S Pinch Roller Polyslider Washer 2 Reel Disk T Cassette Opener 3 Polyslider Washer 1 Spring Cam Pinch Polyslider Washer 4 3 (A) Spring P5 Polyslider Washer 5 (A) Cam Pinch Roller Fig. 2-8 Cam P5 Cam Gear 2-9: PINCH ROLLER / CASSETTE OPENER (Refer to Fig. 2-9) Arm P5 Ass'y 1. Unlock the support 1. 2. Remove the Pinch Roller. 3. Remove the screw 2. 4. Unlock the 2 supports 3. 5. Remove the Cassette Opener. 6. Remove the Spring P5 and Arm P5 Ass'y. 7.
DISASSEMBLY INSTRUCTIONS 1 1 Capstan Belt 1 2 2 Audio Control Head Mode Switch 2 1 1 Audio Control Head Spring Audio Control Head Spring Tension Lever Spring Plate Bottom Deck Chassis Audio Control Head Base Fig. 2-10 2-11: CYLINDER UNIT (Refer to Fig. 2-11) 1. Disconnect the following connectors: (CP4101 and CP4102) on the Head Amp PCB. 2. Remove the Joint Screw, then remove the Azimuth Spring. 3. Remove the 2 screws 1, then remove the Polyslider Washer and Cylinder Unit from the Main Chassis.
DISASSEMBLY INSTRUCTIONS 2-14: MAIN CAM (Refer to Fig. 2-14) 2-15: CAPSTAN DD UNIT (Refer to Fig. 2-15) 1. Remove the Loading Lever. 2. Remove the Main Brake Lever. 3. Remove the Capstan Brake Spring. 4. Remove the Capstan Brake Ass'y. 5. Remove the Main Rod Spring. 6. Remove the Tension Holder. 7. Remove the Tension Lever. 8. Remove the Main Cam. 9. Remove the Middle Gear. 10. Remove the Main Rod Ass'y. 1. Remove the 3 screws 1. 2. Disconnect the CP4105. 3. Remove the Capstan DD Unit.
DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to remove the other. 3. REMOVAL OF ANODE CAP Read the following NOTED items before starting work. NOTE * After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. * Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged.
KEY TO ABBREVIATIONS A A/C ACC AE AFC AFT AFT DET AGC AMP ANT A.PB APC ASS'Y AT AUTO A/V B BGP BOT BPF BRAKE SOL BUFF B/W C C CASE CAP CARR CH CLK CLOCK (SY-SE) COMB CONV CPM CTL CYL CYL-M CYL SENS D DATA (SY-CE) dB DC DD Unit DEMOD DET DEV E E EF EMPH ENC ENV EOT EQ EXT F F FBC FE FF FG FL SW FM FSC FWD G GEN GND H H.P.F : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : H.SW Hz I IC IF IND INV K KIL L L LED LIMIT AMP LM, LDM LP L.
KEY TO ABBREVIATIONS S SYNC SYNC SEP T TR TRAC TRICK PB TP U UNREG V V VCO VIF VP V.PB VR V.
PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Unless maintenance is properly carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. Time Parts Name Audio Control Head 500 hours 1,000 hours 1,500 hours 2,000 hours 3,000 hours Notes Clean those parts in contact with the tape.
NOTE FOR THE REPLACING OF MEMORY IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE • Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 30 minutes before Power On or alternatively, discharge backup capacitor. • No need the setting for after INI 6.
DECK PARTS LOCATIONS (TOP VIEW) 9 8 10 7 6 5 11 4 3 2 12 1 21 20 19 13 18 15 17 16 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Main Chassis Tension Arm Ass'y EOT Reflector Guide Roller S Ass'y P0 Post P1 Post FE Head Cylinder Unit Auto Head Cleaning Head Amp PCB Audio/Control Head C4-1 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.
DECK PARTS LOCATIONS (BOTTOM VIEW) 26 27 25 24 23 28 22 32 33 31 29 30 22. 23. 24. 25. 26. 27. Worm Bracket F Ass'y Mode Switch Worm Ass'y Worm Bracket R Ass'y Loading Motor Belt Capstan DD Unit 28 Capstan Brake Ass'y 29. Bottom Plate 30. Clutch Gear S Ass'y 31. Idler Arm Ass'y 32. Center Pulley 33. Clutch Gear T Ass'y (FRONT LOADING UNIT 15) 1. Side Bracket L 2. Top Bracket Ass'y 3. Side Bracket R Ass'y 4. Cam Gear Ass'y 5. Bot Sensor Cover 6. Side Bracket R2 7. Tape Piece Guide 8.
SERVICING FIXTURES AND TOOLS VHS Alignment Tape JG001C (TTV-P2 or CH-2) JG001D (TTV-P1 or CH-2) JG002B Adapter JG002F Dial Torque Gauge (60~600gf•cm) JG002G (100~1200gf•cm) JG005 Post Adjustment Screwdriver Part No. SV-TG0-030-000 (small) JG153 X Value Adjustment Screwdriver JG022 Master Plane JG024 Reel Disk Height Adjustment Jig JG100A Torque Tape (VHT-063) JG154 Cable Part No. SJ-G15-400-000 JG162A Cable (8 pins) Part No. SJ-G16-2A0-000 JG162H Cable (15 pins) Part No.
PREPARATION FOR SERVICING Basic Servicing Position (In case of needing to check on all blocks) 1. Unplug the connector CP301, CP353 and CY757, then remove the TV/VCR Block from the set. 2. Unplug the connector CP810, CP820 and CP850, then remove the Main PCB from the VCR Block. 3. Connect as shown in the below figure using the Service Fixture. • Connect the Syscon PCB to the Main PCB with the cable JG162A and JG162H. • Connect the Syscon PCB to the CRT PCB with the cable JG162Y. 4.
MECHANICAL ADJUSTMENTS 1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION 1. CONFIRMATION AND ADJUSTMENT Read the following NOTED items before starting work. 1. Turn on the power and set to the PLAY mode adjust the Tension so that the Tension Post is at the position of 0.3mm~0.5mm from the Rib. (Refer to Fig. 1-2) 2. Confirm that the video tape is not curling at the flange of P1 post or is not running on flanges.
MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF FAST FORWARD TORQUE NOTE If the torque value checked is out of tolerance, replace the appropriate parts as follows. 1. Set torque gauge (JG002G) on take-up reel disk, and place unit in FAST FORWARD mode. (Refer to Fig. 1-4) 2. Confirm that torque is more than 400gf•cm. Check Items NOTE After setting the torque gauge on the reel disk, hold the gauge in place. Push the FAST FORWARD button and the reel disk will begin to turn.
MECHANICAL ADJUSTMENTS Beginning Ending Audio/Control Head Maximum A Maximum B A:B=3:2 Fig. 2-1-B 0.25mm 2-2: CONFIRMATION AND ADJUSTMENT OF A/C HEAD TILT Video Tape Video Tape When the tape is running abnormally, perform the following adjustments. 1. Insert a new tape and play it back. 2. Confirm that there is no crease on the tape between the P4 post and guide roller (R) and the tape is running smoothly.
MAJOR COMPONENTS LOCATION GUIDE (VCR SECTION) TP4001 TP4002 TP1001 IC4001 IC601 J4501 J4502 TU6001 IC101 C101 CP6115 SYSCON CP6001 L6011 IC6001 L6012 IF D2-1 TP4501
ELECTRICAL ADJUSTMENTS 3-2: VCO COIL (VCR SECTION) 3. ADJUSTMENT PROCEDURE NOTE For adjusting of VCO, connect input and output terminals of sweepmarker generator to the circuit as shown below, then adjust it. Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION Sweepmarker Generator When replacing IC's or transistors, use a silicon grease. (To prevent the damage to IC's and transistors.) Output 0.
ELECTRICAL ADJUSTMENTS 38.9MHz Fig.
MAJOR COMPONENTS LOCATION GUIDE (TV SECTION) FB401 T501 SCREEN VOLUME FOCUS VOLUME TP401 VR502 MAIN TP801 TP803 J801 CRT D3-1
ELECTRICAL ADJUSTMENTS (TV SECTION) 4. BASIC ADJUSTMENTS ADJUSTMENT MODE4 1. R-Y B OFFSET 2. B-Y B OFFSET 3. 4. 5. 6. On-Screen Display Adjustment Unplug the AC plug for more than 30 minutes to set the clock to the non-setting state. (To release the Back-Up immediately, take the short circuit between C101 and GND at the Power Off.) Then, set the volume level to minimum. Press the VOL.
ELECTRICAL ADJUSTMENTS 4-4: HORIZONTAL PHASE (TV) 4-10: OSD HORIZONTAL 1. Receive the color bar pattern (RF Input). 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 4-1 and press the channel button (1) on the remote control. 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 1.
ELECTRICAL ADJUSTMENTS 4-15: SUB COLOR (TV) 4-18: CONSTANT VOLTAGE 1. Receive the color bar pattern (RF Input). 2. Connect the oscilloscope to TP801. 3. Activate the adjustment mode display of Fig. 4-3 and press the channel button (3) on the remote control. 4. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. 5. Press the VOL.
ELECTRICAL ADJUSTMENTS 5-3: STATIC CONVERGENCE 5. PURITY AND CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 5-2. NOTE 1. Receive the crosshatch pattern from the color bar generator. 2. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 3. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 1.
TROUBLESHOOTING GUIDE (TV SECTION) POWER DOES NOT TURN ON (1) When turning on the Power Switch, does the LED light ? No Check P.CON 5V line. Yes Is the voltage at pin 1 of IC502 DC7.7V ? No Check ICP502, D511 and D512. Yes Is the voltage at pin 3 of IC502 DC5.6V ? No Check IC502. Yes Does RY501 work ? No Does the BASE voltage of Q501 turn ON or OFF ? Yes Yes Check Q510, Q507 and the peripheral circuit. Check Q504, RY501 and the peripheral circuit.
TROUBLESHOOTING GUIDE POWER DOES NOT TURN ON (2) Is CP810 inserted ? No Insert CD810. Yes Is F501 broken ? Yes No Is the voltage at C507 about 180~360V ? Check the circuit between F501, C507 and R501. Yes IC501 bad ? Yes Replace F501. No Replace IC501. E-2 No Check IC501 and the peripheral circuit.
TROUBLESHOOTING GUIDE GOOD PICTURE BUT NO SOUND Is the voltage at CP301 changed with the volume up or down key ? No Check speaker and the peripheral circuit. Yes Is the voltage at EMITTER of Q357 DC15V ? No Is FUSE RESISTOR (R517) broken ? No Check Sound +B line. Yes Yes Replace FUSE RESISTOR (R517). Is the voltage at pin 1 corrector of Q351 DC12V ? No Check Q357, Q358 and the peripheral circuit. Yes Check Q351, Q352 and the peripheral circuit.
TROUBLESHOOTING GUIDE NO PICTURE Are the Brightness and Contrast set to minimum ? No Adjust Brightness and Contrast. Yes Is the voltage at pin 3 of IC601 DC9V ? No Check P.CON 9.6V line. Yes Is the voltage at pin 17 of IC601 DC9V ? No Check CHROMA 9V line. Yes Is the voltage at pin 41 of IC601 DC5V ? No Check D607. Yes Is the voltage at pin 8, 38 of IC601 DC5V ? No Check D604.
TROUBLESHOOTING GUIDE NO COLOR Is the color set to minimum ? No Adjust the color. Yes Is the color signal received ? No Receive the color signal. Yes Is the waveform at pin 40 of IC601 normal ? No Check peripheral circuit of X601. Yes Is the waveform at pin 42 of IC601 normal ? No Check peripheral circuit of VIDEO Out line and Q602. Yes Is the waveform 12, 13 and 14 of IC601 normal ? No Check IC601. Yes Is the waveform at TP801, TP802 and TP803 of CRT PCB output.
TROUBLESHOOTING GUIDE ONLY A LINE APPEARS Is the normal signal at pin 4 of IC 401 input ? No Check peripheral circuit of IC601. Yes Is the voltage at pin 6 of IC402 DC25V ? No Check R452 and FB401. Yes Check peripheral circuit of IC401 and DY401. OSD SCREEN DOES NOT APPEAR Is there a waveform at pins 33, 34 and 35 of IC101 ? No Check pin 36 of IC101 and the peripheral circuit. No Check pins 18, 19 and 20 of IC601 and the peripheral circuit.
TROUBLESHOOTING GUIDE (VCR SECTION) PLAY SHUTS OFF Insert a cassette and push PLAY button. Does it Power off in about 3 seconds? Check TAPE LOADING, Check TAPE LOADIG, LOADING BELT,MODE SWITCH, LOADING BELT, MODE DD MOTORDD andMOTOR CYLINDER SWITCH, and MOTOR. CYLINDER MOTOR. Yes No Does it Power off in about 6 seconds? Yes Check REEL SENSOR and REEL BELT. Yes Check REEL SENSOR,IC1001 and REEL BELT slack. No Does it Power off intermittently No Check IC1001.
TROUBLESHOOTING GUIDE CYLINDER NOT ROTATING DURING PLAYBACK AND RECORDING Is the voltage at pin 6 of CP1002 about DC13V ? No Check UNREG 12V line of Main PCB. Yes In playback, is the voltage at pin 3 of CP1002 about DC1.2V ? Yes Replace CYLINDER MOTOR. No In playback, is the voltage at pin 44 of IC1001 DC5V Pulse and is the voltage at pin 46 of IC1001 about DC1.5V ? No Check R1059, R1080 and R1058. Yes Replace IC1001.
TROUBLESHOOTING GUIDE AUDIO SHAKES Is AUDIO HEAD scratched ? Yes Replace AUDIO HEAD. No Does pin 15 of IC1001 output a 3.0Vp-p square wave ? 3.0V No Replace CAPSTAN DD. Yes In playback, is the voltage at pin 14 of CP1002 2.8V ? Is the voltage at pin 14 of CP1002 3.3V when you stop the CAPSTAN DD MOTOR manually ? No Check peripheral components of IC1001. Yes In playback, is the voltage at pin 17 of CP1002 about DC1.6V ? Yes No In playback, is the voltage at pin 50 of IC1001 3.
TROUBLESHOOTING GUIDE CASSETTE TAPE IS NOT ACCEPTED Does WORM GEAR of FRONT LOADING UNIT activate ? No Check WORM GEAR of FRONT LOADING UNIT. No Check EOT, BOT, PHOTO SENSOR, pins 2 and 4 of IC1001. Yes When cassette is not inserted, is EOT BOT PULSE at EMITTER of Q1055, Q1056 5V ? Yes When a cassette is inserted, is the voltage between pins 1 and 2 of CP1002 ? Yes Replace LOADING MOTOR.
TROUBLESHOOTING GUIDE WHEN INSERTING CASSETTE, IT EJECTS IMMEDIATELY In another cassette tape does the same problem appear ? No Defective CASSETTE or FRONT LOADING UNIT. No Replace EOT/BOT PHOTO TRANSISTORS. Yes In covering the infrared sensor, is pin 2 and 4 of IC1001 5V ? Yes When inserting cassette, is pin 4 of IC1001 low ? No Check R1010. Yes Is EJECT position of FRONT LOADING GEAR OK ? No Check FRONT LOADING GEARS. Yes Check IC1001 circuit.
TROUBLESHOOTING GUIDE FF/REW DO NOT WORK When the FF/REW is pushed, does the PULSE appear at pin 51 of IC1001 ? No Check pin 74 of IC1001 lines change IC1001. No Check pin 12 of CP1002 and peripheal circuit. No Check pin 45 of IC1001 lines change IC1001. Yes Is the voltage changing at pin 12 of CP1002 when you press FF/REW ? Yes Is the voltage changing at pin 14 of CP1002 ? Yes Check DECK MECHANISM.
TROUBLESHOOTING GUIDE TAPE LOADING IS OK, BUT UNLOADS IMMEDIATELY Does CYLINDER rotate ? No Yes Is the voltage at pin 6 of CP1002 UNREG 12V ? No Check Power circuit. Yes In playback, is the voltage at pin 3 of CP1002 1.2V ? No Does DC5V PULSE signal appear at pin 44 of IC1001 ? Is the voltage at pin 46 of IC1001 DC2.5V ? Yes Yes Replace CYLINDER UNIT.
TROUBLESHOOTING GUIDE PLAYBACK PICTURE JITTERS HORIZONTALLY No Is FG output level at pin 5 of CP1002 about 5V? 5V Replace CYLINDER MOTOR. Yes Is the voltage at pin 3 of CP1002 1.2V? No Replace IC1001. Yes Replace CYLINDER MOTOR. PLAYBACK PICTURE SHAKES PLAYBACKPICTURE SHAKES No Is FG Pulse output level at pin 5 of CP1002 about 5V? 5V Replace CYLINDER MOTOR. Yes Does pin 11 of IC1001 output a 4.4Vp-p square wave? No Replace IC1001.
TROUBLESHOOTING GUIDE AUTO TRACKING DOES NOT OPERATE By manual tracking, does the DC level at pin 6 of CP4001 change? No Check IC4101 and CYLINDER UNIT. Yes In auto tracking, is the voltage at pin 5 of IC1001 more than DC1.85V? No Does the CTL PULSE (about 1.0Vp-p) appear at pin 19 of IC1001? 1.0Vp-p Yes Yes Replace IC1001. E-15 No Check CONTROL HEAD.
TROUBLESHOOTING GUIDE WHEN PLAYBACK,FAST FORWARD OR REWIND MODE IS ACTIVATED, UNIT STOPS IMMEDIATELY Does CAPSTAN DD MOTOR rotate? No Refer to section "CAPSTAN DD MOTOR NOT ROTATING" Yes Is CAPSTAN BELT OK? No Replace CAPSTAN BELT Yes Does REEL SENSOR PULSE signal appear at pin 69 of IC1001? Check and that CheckREEL if theSENSOR REEL SENSOR the voltage at pin 10 of CX1003 receives the Pulse. is DC5V.
TROUBLESHOOTING GUIDE PLAYBACK PICTURE JITTERS VERTICALLY No Does tracking noise appear in the picture? Yes By adjusting the manual tracking UP/DOWN buttons,will the noise disappear in the picture? No Check P/B ENVELOPE. Yes Are GUIDE POSTS the right height? No Adjust GUIDE POST height. Yes Is PG SHIFTER Adjustment 6.5H? No Adjust PG SHIFTER. Yes Check PB-Y circuit.
TROUBLESHOOTING GUIDE NO PLAYBACK PICTURE Is E-E appearing on the Monitor TV? No Yes Is the voltage at pins 12,28 and 54 of IC4001 5V? No Check Power circuit. Yes Check 5V line. Is there PB Y/C signal at TP4002? No Check IC4101 and the connection of the CYLINDER. No Check Q4001,Q4016,Q4004 and the peripheral circuit.
TROUBLESHOOTING GUIDE NO COLOR DURING PLAYBACK Does FM ENVELOPE appear at TP4002? No Check IC4101 and HEAD AMP BLOCK. No Check C4067 and the peripheral circuit. Yes Does CHROMA signal appear at pin 27 of IC4001? Yes Does COMPOSITE signal appear at pin 16 of IC4002? No Replace IC4002 Yes Does COLOR BURST signal appear in the COMPOSITE signal at pin 2 of IC4001? No Replace IC4001. Yes Check TV Block.
TROUBLESHOOTING GUIDE PLAYBACK PICTURE NOISY (EVEN AFTER CLEANING HEADS) Is FM signal at TP4002 more than 200mVp-p? No Replace CYLINDER MOTOR. Yes Is there FM signal at pin 11 of IC4001 140mVp-p? No Check Q4001,Q4016,Q4004 and the peripheral circuit. No Check pins 6 and 8 of IC4002 and the peripheral circuit.
TROUBLESHOOTING GUIDE NO COLOR DURING SELF RECORDING AND PLAYBACK Does VCR signal appear at pin 53 of IC4001 ? No Replace J4501. Check VIDEO input circuit. Yes Does CHROMA signal appear at pin 29 of IC4001 ? No Replace IC4001 Yes Does FM signal appear at pin 8 of CP4001 ? No Check Q4005, Q4006 and peripheral circuit. Yes Does FM signal appear at pin 8 of IC4101 ? No Check IC4101 and peripheral circuit. Yes Replace IC4101.
TROUBLESHOOTING GUIDE NO NORMAL AUDIO ON PLAYBACK Does audio appear on E-E ? No Refer to section "NO E-E". Yes Is the voltage at pin 17 of IC5001 High ? No If the pin 52 of IC1001 is not High, replace the IC1001. No Check R5013, R5014 and peripheral circuit. Yes Does AUDIO signal appear at pin 7 of IC5001 ? Yes Check AUDIO HEAD for debris of stains. Check that the connector from AUDIO HEAD is fully inserted to CP4106. Replace IC 5001.
TROUBLESHOOTING GUIDE CAPSTAN DD MOTOR NOT ROTATION In playback, is the voltage at pin 13 of CP1002 13V ? No Check POWER circuit. Yes Is the voltage at pin 15 of CP1002 5V ? No Yes In playback, check the voltage at pin 17 of CP1002 is 2V or at pin 50 of IC1001 is 0V ? No Replace IC1001. Yes In playback, is the voltage at pin 14 of CP1002 2.5V ? No Check pins between 45 and 47 of IC1001 and peripheral circuit. Yes Replace IC1001. Does DD MOTOR rotate now ? If not, replace DD MOTOR.
TROUBLESHOOTING GUIDE AUDIO CAN NOT BE RECORDED Is BIAS level O.K at T5001 ? 60V No Is the voltage at pin 20 of IC5001 9.2V ? No Check POWER circuit. Yes Yes T5001 is broken or shorted. Check T5001 and peripheral circuit. Is there AUDIO signal at pin 10 or 12 of IC5001 ? No Check the circuit between audio out of Tuner and pin 10 of IC5001. No Check IC5001 and peripheral circuit. Yes Is there AUDIO signal at pin 14 of IC5001 ? Yes Is there signal at pin 22 of IC5001 ? No Replace IC5001.
TROUBLESHOOTING GUIDE CASSETTE IN AND DOWN, UNIT HAS NO FUNCTIONS Does mode indicator appear in Display ? Yes Check LOADING MOTOR, MODE SWITCH and the peripheral parts. No Does VCR operate with the remote control ? No Check IC1001. Yes Check Operation PCB.
TROUBLESHOOTING GUIDE RECORDING MECHANISM WORKS, BUT NO VIDEO RECORDED FROM INPUT JACK OR TUNER Does VIDEO signal appear at pin 51 or 53 of IC4001 ? Check the circuit from VIDEO input jack to IC4001, from Tuner Pack to IC4001. No Yes Is there VIDEO signal at pin 6 of IC4002 and does VIDEO signal appear at pin 8 of IC4001 ? No Check the peripheral circuit of Q4007, Q4009. Yes Does FM signal appear at pin 8 to CP4001 ? No Replace IC4001.
TROUBLESHOOTING GUIDE NO E-E (NO VIDEO AND AUDIO FROM TUNER) Is the voltage at pin 6 of TU6001 9V ? No Check TV Main PCB. Yes Is defect present when replacing the IF PCB ? No Is defect present when replacing the TU6001. No Check TU6001 and the peripheral circuit. Yes Yes Replace TU6001. Is the voltage at pin 13 of IC6001 5V and the voltage at pin 18 of IC6001 9V ? No Check 9V and 5V line. Yes Is there VIDEO signal at pin 20 of IC6001? No Replace IC6001 and check peripheral circuits.
IC DESCRIPTIONS OEC6052A Pin No. 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 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Pin Name VSS PAL/SEC HALF TONE — I2C OFF H. SW — DEGAUSS TEXT RESET — TV MUTE VT VOLUME P. B. LED — — TRICK PB AGC V. POSI/V. SIZE AV2 AV1 AGC DET COL SYS IN DV-SYNC AFT KEY A KEY B VL VH FORTHED VH — VSS RED GREEN BLUE Y HD VD SCL SDA B.
IC DESCRIPTION OEC9032B Pin No. 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 46 47 48 49 50 Pin Name I/O Description VSAD — Ground. BOT I Tape start sensor input signal. CASS DOWN/SERVICE I Input of CASS DOWN, TAB switch and setting of service mode. EOT I Tape end sensor input signal. VIDEO ENV DET I Input terminal of video RF envelope. HI-FI ENV DET I Input terminal of HI-FI RF envelope. DEW I Dew sensor input.
IC DESCRIPTION OEC9032B Pin No. Pin Name I/O 51 CAP F/R O 52 VV-H O 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 EXT IN-L EXT H MS SW3 MS SW2 MS SW1 MS SW0 TAPE IN LED REC LED T-REC LED CLOCK 0 CLOCK 1 VSS ATR LED PLAY LED REPEAT LED SYSTEM 2 REEL S REEL T SENS LED CE COUNTP IN S. DATA IN S. DATA OUT S.
SERVO TIMING CHART IC1001 (OEC9032B) DRUM PG !3 PIN 30 Hz DRUM FG !1 PIN 720 Hz 30 Hz VIDEO H. SW #8 PIN 6.5 H V-SYNC $2 PIN 6.
SYSTEM SWITCH MODE SWITCH PATTERN SWITCH COMPOSITION SW (0) SW (1) SW (2) SW (3) SIGNAL CONDITIONS OF SWITCHES SW 0 SW 1 SW 2 SW 3 SW 3 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 1 0 0 1 1 1 1 1 1 0 0 0 0 MODE SWITCH SW 2 SW 1 0 0 1 1 0 0 0 1 1 1 0 1 1 0 0 0 0 0 1 1 1 1 0 0 0 0 SW 0 1 0 0 1 0 1 0 0 1 1 1 1 0 0 0 1 0 1 1 0 0 1 1 1 0 1 1 0 1 0 0 1 0 0 0 1 MODE SWITCH DECK MODE SW 3 SW 2 SW 1 SW 0 EJECT CASSETTE UP CASSETTE DOWN IDLE *1 UL START VSR RVS STILL FW
SEMICONDUCTOR BASE CONNECTIONS DIODE IC CATHODE CATHODE ANODE ANODE 1SS133T-77 HZ6A3L TD MTZJ12B T-77 MTZJ13B T-77 MTZJ13C T-77 MTZJ5.1B T-77 MTZJ5.1C T-77 MTZJ5.6B T-77 MTZJ6.
TV BLOCK DIAGRAM VIDEO CHROMA DEFLECTION IC601 TB1226CN TIMER MICON IC101 OEC6052A SYNC SEPA 51 Q6503,Q6502,Q6504 BUFFER TU. VIDEO (B) TUNER/AUDIO/IF PWM VT 12 VT 18 19 OSD B 35 20 DV_SYNC AFT VD 38 SW. B.B HI 41 KEY-A 26 KEY A KEY-B 27 KEY B REMOTE 51 REMOTE 63 VCR POWER Q111 SW. Q110 SW. 62 Q102 SW. 48 Q602 2ND CHROMA 12 X102 8MHz 13 X. OUT 46 P.B.LED VCR POWER-H SHARPNESS 37 SW. X.
Y/C/HEAD AMP BLOCK DIAGRAM Q4007 BUFFER CP4106 1 AUDIO PB 2 6 AUDIO REC AE HEAD (+) Q4009 Q4012 SW AMP Q4015 BUFFER Q4004 CP4103 3 CYL DRIVE SYSCON/OPE./ POWER/IN/OUT 5 CYL FG 7 CYL PG 16 FG 18 V.
SYSTEM CONTROL/OPERATION/POWER/IN/OUT BLOCK DIAGRAM SYSCON/SERVO IC1001 OEC9032B SW1010 3 TAB SW Q1053 SUPPLY REEL SENS. Q1054 TAKE UP REEL SENS. CAS. DOWN/SERVICE VIDEO H. SW 38 H. SW Q1002 NTSC SW 69 REEL S VIDEO ENV. DET 70 REEL T ENV. DET 5 Q1010 TRICK PB 5V DRIVER TRICK PB L 33 Y/C/HEAD AMP TRICK PB H Q1055 Q1018 P. CON 5V SW Q1017 EOT SENSOR V. REF CTL 4 EOT NTSC-H 68 2 BOT SENS LED 71 NTSC-H Q1051 Q1056 BOT SENSOR CP1002 3 CYL DRIVE 5 CYL FG 7 CYL PG Y/C/HEAD AMP 16 FG 18 V.
TUNER/AUDIO/IF BLOCK DIAGRAM IC6302 LA6358T VT DRIVER 8 7 6 Q6304 VOLTAGE CONVERTER IC6303 UPC574J TU6001 11 TEST POINT 2 PF5001 CP6115 4 IF 2 3 VCR AUDIO OUT AV SW AUDIO IN AUDIO REC PWM VT AV SW VIDEO IN VCR AUDIO OUT AUDIO REC/PB AMP IC5001 LA7289 14 AUDIO PB 22 23 15 REC SYSCON/ OPE./POWER/ IN/OUT + REC TU MUTE + Q6101 T. AUDIO MUTE - - TV Q6003 ADI AUTO BIAS AC MUTE AMP Q6104 AFT S.
PRINTED CIRCUIT BOARDS OPERATION CP702 C781 R6014 R6015 24 JP09 C6029 C6027 C6009 R6009 C6015 C6011 R6011 R6008 C6014 R6010 JP6003 R6012 C6035 JP6011 JP6016 J-1 JP17 R6016 Q6002 R6004 C6006 C6004 R6018 C6028 C6007 C4103 R6029 R6001 C6010 JP14 C6008 JP06 C6017 C6001 C6030 C4120 C4114 C6020_1 C4115 C4119 R6013 C6003 R6003 Q6004 IC4101_2 C6022 C6024 C6023 JP07 C4104 R6019 1 C4110 13 R4111 C4112 C4113 C4106 C4105 R4104 C4127 R4109 C4108 R4113 W801 R4103 JP600
C6005_1 Q03 CF04 L04 L05 CF6005 R07 R05 C6019 CP4105 CP01 L12 CP4103 CP4104 JP04 JP03 R06 JP6002 IC01 W02 W05 L11 W14 CP4101_2 CF01 JP01 R24 R20 C25 JP6004 VE6773A L4101 W01 CF02 C4107 C6002_1 W03 W04 W08 IC02 CP4102_1 CP4106 JP05 X01 L08 L02 CF03 C6021_1 L10 L16 L09 J-2 W13 L07 IF CD4102 HEAD AMP PRINTED CIRCUIT BOARDS
PRINTED CIRCUIT BOARDS OPERATION D795 CP702 C781 L11 Q6002 JP17 C6028 C6003 R6003 C6035 JP6011 C6001 CF04 R6011 R6016 R6001 C6020_1 CF6005 R6004 R6008 L04 R6010 R6018 CP4103 CP4105 JP6016 J-3 CF01 R20 JP09 JP01 R24 JP04 C6010 JP03 R06 R07 C6019 JP6003 R6014CF02 R6015 C6024 C6023 C25 R6019 W01 JP6002 R6025 CF03 C6002_1 C6021_1 L02 C4112 C4113 C4115 C4119 C4106 C4127 R4109 C4108 C4105 C4107 R4113 W801 W08 W05 W02 CP4104 C6014 C6009 R6009 C6015 C6011 Q03 CP4
A B C D E F G H OPERATION SCHEMATIC DIAGRAM 8 8 7 7 (OPERATION PCB) (LED PCB) FROM/TO OPERATION 1 1 REMOCON OUT AT 5V REMOCON +B 2 2 REMOCON +B 4 POWER ON L POWER ON L 3 3 POWER ON L 5 PLAY LED REC LED 4 4 REC LED 6 KEY A T-REC LED 5 5 T-REC LED GND 6 6 GND 7 7 GND 8 8 9 9 NC NC 10 10 NC W808 270 EM-553-F1T ST.BY/ON TIMER D794 R794 SLZ-936C-07-S-T1 270 POWER D792 R761 T-REC D791 REC/OTR D793 C755 6.
A B C D E F G H 3 2 CH2(L)F 8 1 4 CH1/2 S 52492-0420 CP4101_2 FROM TO CYL (HEAD AMP PCB) CH1(R)F HEAD AMP SCHEMATIC DIAGRAM 8 C4104 15P CH NC 7 7 C4110 0.01 B R4111 20K C4119 33P CH 0.001 B C4113 0.001 B C4112 0.001 B C4115 0.001 B C4114 C4120 33P CH 46 6 45 0 0.7 2.1 4.99 NC 18 17 16 15 5 2 1 0.1 3 1.2 0.2 4 0 5 PB OFF REC ON PB OFF REC ON PB OFF REC ON 24 23 EP/SP A1 A1 EP (LP) VCC A2 VCC A2 1.5 HL SP SW30 SW 30 REC MUTE BUF ON REC/PB H CH 3.
A B C D E F G H IF SCHEMATIC DIAGRAM 8 8 0.9 C6011 56 R6011 R6010 4.7K P.CON 9V C6010 0.033 VCC2 2.6 8.9 17 2.5 5.0 12uH L6004 2.2K 680 R6006 R6005 1 15 3.6 14 13 3.6 5.0 12 2.3 2.6 R6020 C6022 5 7.9 4 R6024 C6030 50V 4.7 KA B 3 330 3600038 R6025 2 1 NC 3 CF6002 TPS6.0MB TPWA02B 5.6K 100uH L6016 R6016 1K 2.6 BUFFER Q6002 0 2SA1037K CF6001 R6029 VCO L6011 3 3.2 0.022 16V 47 KA C6021_1 820 R6014 F 0.1 C6017 JP6005 3P CH 4 7.
IC6301 C6101 R6109 Q6304 C6319 R6312 W178 C1022 R6103 C6123 J-7 C113 C1012 R110 C102 W298 Q6504 C130 R171 W262 C111 W475 R6508 Q6502 Q6503 W956 W264 R141 R1002 C175 R4069 C176 R183 R155 C110 Q105 Q106 R118 C178 R1094 W291 C1008 R1058 Q4020 C1002 R1046 W423 W938 Q1051 R1007 Q4010 R1045 R4077 C4043 C4058 R1090 R1070 Q4011 R4048 C4057 R1039 R4022 C4056 C4045 R4044 R4068 R4043 R4047 C4033 C4041 C4040_1 C4046_1 C4024 C4047 R4045 C4051_1 R4034 C4050 R4028 C4053 R4049 C40
PRINTED CIRCUIT BOARDS SYSCON TP351 W271 W269 Q1056 D120 W268 CD6101 J4502 R4519 C4514 L4502_1 C1061 W043 W481 W126 C358_2 S815X J4501 W037 W033 W123 W076 C1064 W027 CP4001 D117 W034 R370 W122 W121 W035 W476 R367 B4004 W023 67 W141 W203 W024 C3 W117 W207 W208 W209 W989 Q357 S828Y CP301 CP802 C651_1 S805X C1013_1 C618 X601 C603 C624 C635 W038 W934 C652 C622 W136 IC601 W417 W486 C602 S821Y C604 L606 R617 S805Y CC002 C662 R621 C611 W068 W065 W149
W270 R6116 W844 W099 W925 W886 W860 W930 W273 W272 C1036 C145_1 W827 C119 C170 L101 R156 W909 C6108 C1011 C6315 R6308 R6306 C6314 C6313 R6307 R129 C6111 B6105 C6141 W091 C6110 C6119 C6317 R6310 W098 C166 R6311 W271 C6117 C6114 W882 W884 C6124 W020 C109 C125 R181 R101 R108 R102 R103 R104 R105 R106 R117 R128 R116 C131 C117 C132 W892 R125 R131 R126 W266 C107 C108 R121 R122 C161 R146 R123 C160 R147 R114 R150 R115 R151 C134 C133 R124 C151 W081 R134 Q110 L102 W906 D119W35
6.3V 100 KS 9 NC2.2 2.8 20 21 R4052 4.7K L4012 68uH 180P CH DV_SYNC COLOR_SYSTEM C4074 4.7 23 NTSC 2.9 24 R 0.015 B C4067 22K C4064 C4062 50V 0.47 KS 15P CH R4050 C4061 2.3 22 2.8 25 220P CH AT+5V R4069 0.018 B 6.3V 22 KS C4055 C4048 22K C4056 0.1 F 3.9K 0.01 B R4068 1K 2.2K R4044 C4085 4.433619MHz 4.7M C4044 X4001 2.8 1.8 18 19 JUDGE PAL IIC 5 0.9 26 3.1 27 6 APC VXO /XO B-ID PB C LPF P VCO PB FM EQ ACC SUB CONV. LPF MAIN MAIN BPF 30 2.5 29 2.
A B C D C1019 CP1002(CP4103) TMC-W20P-A1 CTL+ 11 MOTOR GND 12 CAP/M F/R 13 VCO 14 CTL 15 VCC CTLCTL+ 10 11.8 0 W994 11ES1N R1042_1 2.7 1W MOTOR_GND 7 1 F TO TUNER/AUDIO R1071 CAP_FG 1K R1009 11 DFG OUT 51 CAP F/R 1.9 S.DATA S-T S.CLK 5.1 77 COMP 0 78 SYNC IN 79 COUNT P OUT 80 0 CTL OUT R1081 5.
A B C D E F G H GND 2 AGC 3 AFT S.CURVE 4 IF 8 1 F (SYSCON PCB) C6101 12 9 10 GND 11 8 AGC IF 7 AGC CONTROL SIF SW 6 4 AFT S.CURVE P.CON+5V 3 TU.VIDEO 5 2 GND R6115 TU.AUDIO 1 P.CON+9V CP6001_2 6035B-12Z002-T FROM/TO IF C6119 16V 470 YK 171826-4 FROM/TO Y/C NC 470K ATS.LEVEL W930 BUFFER Q6104 2SC2412K 3.9 W860 R6109 R6103 0.33 MMTS C6127 R6110 W925 C6149_2 AUDIO_REC NA_PB/LINE/TU V.REC_ST-H GND[A] W923 C5016 16V 47 KA C5022 0.
A B C D E F G H POWER/IN/OUT SCHEMATIC DIAGRAM 8 8 (SYSCON PCB) 3 AT+12V 4 P.CON+9V AT+12V MOTOR GND 7 AT+30V 8 POWER FAIL(DC) POWER_FAIL[DC] TO SYSCON 8.9 P.CON+5V MOTOR_GND AT+5V R1099 0.7 0 GND 10K P.ON SW Q1030 2SC2412K C1061 16V 22 6 TO TUNER/AUDIO KA 4.5 R1097 10K 6 11EQS04N B1002 P.CON+5V[C] GND BLM31A601SPT FROM/TO MICON 220 1/4W R1096 P.CON+9V P.CON+5V AT+30V D1007 W967 5.3 DRIVER Q1029 2SB926 or T 5.2 0 P.ON SW Q1028 2SC2412K 0 AT+5.
A B C D E F G H MICON SCHEMATIC DIAGRAM (SYSCON PCB) SD REMOTE 32KHz OSC 32KHz OSC POWER FAIL 4.0 1.5K 18 18P CH 32.768 KHz C125 X101 0.1 F C130 2.5 1.0 0 12 13 P.B.LED TRICK PB L MTZJ5.6B C106 270P CH C166 10K R135 PWM_VT FROM/TO TUNER/AUDIO R124 0 NC 0 NC 5 R141 0 5.5/6.0MHZ 10K C150 10K R184 4.9 15K 270 R156 4.5 4.7K KEY A W959 R140 21 22 SCL 23 AFT W956 18 19 20 47 SDA DV SYNC AV-HI R190 SDA SCL 4.9 0 2.5 5.1 R146 5.1 4.
A B C D E F G CHROMA SCHEMATIC DIAGRAM H FROM/TO DEFLECTION FROM/TO MICON R652 L604 W975 W807 10uH VCR_POWER-H C607 0.001 B C612 0.001 B OSDBLK. OSDB 15 SOUND GND 14 CHROMA+9V 13 VCR POWER H 12 TV POWER H 11 GND 10 H.OUT 9 8 V.OUT 7 ACL 6 AFC 5 RELAY_H 4 V.NF 3 ABCL 2 R635 1.8K LFB-01L SOUND+B NC B.OUT 0 LFB-01L D611 D609 BUFFER Q612 2SC2412K R.OUT 4.7K R662 4.7K 5.0 G.OUT R657 LFB-01L D610 LFB-01L BUFFER Q611 0 DTC114EKA 5.0 OSDG SCL 5.
A B C D E F G H SOUND AMP SCHEMATIC DIAGRAM 8 8 7 7 (SYSCON PCB) FROM/TO OPERATION CP353(CD703) 8283_0312_00_000 TO OPERATION 1 SOUND_OUT 2.2K W985 R366 15.0 15.6 9.0 8.4 SOUND OUTPUT Q351 2SC3419_Y CD301_1 8D12414A 1/2W R359 SP352_1 S0410J05A 4_OHM 2 5 SPEAKER 1 R360 1 SP351 S0410J05A 4_OHM 16V 470 YK HS351 SOUND OUTPUT Q353 2SC1815Y SOUND OUTPUT Q352 2SA1356_Y W947 0 8.6 C357 HS352 0.1 TF 0 SPEAKER 1 C356 1/2W D351 180 R358 0.068 TF C366_1 3.
A B C D E F G H OPERATION 1 SCHEMATIC DIAGRAM 8 8 8 7 6 5 4 3 2 T-REC LED KEY A PLAY BACK LED P.C 5V/TV PWR-H AT+5V GND REMOCON OUT 1 9 REC LED 10 CY757(CD757) CH1A002A TO OPERATION KEY B (SYSCON PCB) NC W997 7 7 W821 W822 6 6 FROM SYSCON T-REC_LED D706 11E1N REC_LED V.REC_ST-H 5 5 D703 W938 W929 1SS133 D708 MTZJ6.8C 4 4 FROM POWER I/O AT+5.
A B C D E F G H DELAY SCHEMATIC DIAGRAM 8 8 (SYSCON PCB) FROM CHROMA V.OUT CHROMA_Y FROM POWER/I/O 7 7 GND 6 6 5 5 L601 10uH C653 150P CH 4 4 3 3 DL601 1 SDL-4104 2 3 1K R674 2 W716 TUNER VIDEO SIGNAL S815X 2 0.
PRINTED CIRCUIT BOARDS MAIN/CRT/POWER SW CD804 C413 W049 CD810 W027 W069 W008 FH501 W829 D511 C525 W002 D508 C518 F501 D512 R520 IC503 W001 C527 ICP502_1 C531 FH502 Q502 C P5 03 W028 C537 L401 W011 W812 R518 C418_1 T401 C422 W050 W029 C519 R537_1 C516 W031 W851 R521 Q503 D509 HS402 W020 W032 D517 C524 D519_2 ICP504 R517 R447 W021 B401 D510 W831 W041 C423 FB401_1 W042 B504 W022 W023 C523_1 IC502 B505 W024 W834 B403 FH504 W043 IC504 R534 C521
A B C D E F G H DEFLECTION SCHEMATIC DIAGRAM 8 8 (MAIN PCB) PUMP UP V.OUTPUT IC401 LA7832 V-OUT V-DRIVE GND 7 1 0 VCC 2 14.2 3 23.5 4 0.9 5 6 1.1 7 7 22.8 4.9 D401 11E1N C412 500V 680P B C409 35V 100 VZ C406 4.7K C411 0.1 TF 680 1/2W 1 1/4W 100V 0.01 TF C408 FB401_1 3221007A CC3 TP-1S-05 248.0 5 L402 127.3 C431 ELH5L4112 250V 10 YK 1K NC 330P B R447 68 1/2W C450 4 C430 D413 1W W811 C423 200V0.39 DHS C422 250V 1 VZ W828 R448_2 10ELS6 L401 4.
A B C D E F G H TV POWER SCHEMATIC DIAGRAM (MAIN PCB) 8 8 FROM/TO DEFLECTION R507 S802Y +B 100V DRIVE Q503 2SC4160-OEC-YAC11 2 4 3 4 3 2 1 2 1 1 3 C505 C506 250V 0.22 MMCA 4 0 15.5 56 1/2W RU2AM 10K 6.0 0.033 M 6.3 C D E J-21 F 1 2 1 CD501_3 0T650804 AC110-240V 50/60Hz NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE +B SWITCHING Q505 4.8 DTC114ES 0 2 0 0 4.5 +103V B BROWN 2 W818 5.
A B C D E F G H CRT SCHEMATIC DIAGRAM (CRT PCB) 8 8 FROM CHROMA GND 4 P.CON+9V 3 G 2 R 1 B 4.7K 5 R821 CD850(CP850) CH25086A R802 TP801 12K 7 2W 7 36 R806 1/4W 132.5 0 2.5 CUT OFF Q801 2SA733 RED AMP Q804_1 2SC4217 R807_1 2.7K 1/4W 6 680P B C809 6 240 R814 W813 1SS133 0 1K 1SS133 2.8 0.9 D802 R809 D801 C802 R803 470 50V10 YK 470 R804 2.2K 1/4W L850 HF57T18.5*10*10 R811 4.7K R805 TP802 12K 2W 37 132.1 132.9 5 2.9 2.5 GREEN AMP Q805_1 2SC4217 104.
A B C D E F G H INTERCONNECTION DIAGRAM 8 CP701_B 1 3 POWER ON L 3 5 4 REC LED 4 4 5 T-REC LED 5 3 6 GND 6 7 DECK MECHA ASS’Y CAPSTAN DD UNIT 1 1 LM M2001 HALL VCC CD4102 LDM+ 1 LDM- 2 2 2 LOADING MOTOR M101 SOUND OUT SOUND GND 7 PCB030 TE9972 1 2 CD703 3 SP OUT 3 CP353 2 3 4 5 6 REMOCON OUT 1 1 GND 2 AT 5V 3 4 P.
WAVEFORMS Y/C 1 MICON REC 200mV. 10U/div 7 REC 2V. 10U/div 13 REC/PB 0.5V 5V/div 18 SYSCON 1V 10U/div 22 1V 20U/div color 27 1V 20U/div 28 1V 20U/div CHROMA 2 REC 200mV. 0.5V/div 8 REC/PB 0.5V. 0.5V/div 14 REC/PB 20mV 5V/div 19 1V 20U/div 23 3 PB 200mV. 0.5V/div 9 REC/PB 20mV. 0.5V/div 14 REC/PB 2V 5V/div 20 2V 20U/div 23 1V 20U/div color 29 1V 20U/div 2V 20U/div 24 1V 500U/div 30 1V 20U/div 2V 20U/div 4 REC 200mV. 0.2U/div 10 REC/PB 200mV. 10V/div 15 REC/PB 0.
WAVEFORMS SOUND AMP HEAD AMP 33 39 REC/PB 500mV. 5V/div 45 REC 500mV. 50V/div 40 REC/PB 1V. 20U/div 46 PB 50mV. 0.1s/div 5V. 500U/div DEFLECTION 34 2V. 5V/div 35 5V. 20U/div CRT 41 PB 500V. 0.1s/div 36 50V. 20U/div 42 REC 50mV. 10U/div 37 50V. 20U/div 43 REC/PB 10mV. 1s/div 38 50V. 20U/div 44 PB 50mV 50V/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
MECHANICAL EXPLODED VIEW 153 139 217 217 218 218 221 218 153 114 211 211 138 135 154 147 J801 221 141 221 153 156 PCB110 (CRT PCB ASS'Y) L503 148 154 138 143 216 146 152 116 145 117 110 225 115 221 V801 148 PCB070 (MAIN PCB ASS'Y) 207 118 215 FB401 158 146 102 218 214 214 114 SP352 213 PCB340 (POWER SW PCB ASS'Y) 211 142 220 140 220 211 157 207 203 207 144 B 208 118 105 208 134 PCB030 (OPERATION PCB ASS'Y) 208 127 129 208 131 209 209 130 126 125 124 133 208 132
MECHANICAL EXPLODED VIEW 118 201 155 137 B 118 104 118 210 210 210 223 211 222 210 149 150 151 216 224 136 119 213 204 224 212 204 PCB330 (HEAD AMP PCB ASS'Y) 213 204 111 202 120 114 219 112 106 103 214 113 159 109 121 206 159 PCB350 (IF PCB ASS'Y) 219 107 205 PCB010 (SYSCON PCB ASS'Y) 108 A L1-2 210
MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. 101 102 103 104 105 106 107 108 109 S5-520-1B7-200 ------------S0-0WB-0A0-020 S5-4WP-AA0-030 S5-4WP-AA0-040 S6-1WP-A01-430 ----- 110 111 112 113 114 115 116 117 118 119 DESCRIPTION Q'TY REF. NO. PART NO. CABI,FRONT ASS'Y LABEL,POP(NO. 1) PLATE,EARTH SYSCON COATING CLIP EFB0692 FIBER WASHER 7x3.2xT0.
CHASSIS EXPLODED VIEW (TOP VIEW) 513 513 M2003 514 514 UN4001 504 301 504 512 503 505 302 H5002 310 303 334 H5001 510 510 311 315 312 316 503 304 319 305 360 308 309 508 313 368 501 316 508 318 503 321 306 519 M101 307 317 322 320 323 330 332 511 331 504 327 324 516 515 335 516 339 336 338 325 333 326 337 329 340 509 314 328 M1-1
CHASSIS EXPLODED VIEW (BOTTOM VIEW) 504 SW101 504 504 502 342 502 M2001 343 369 344 345 346 351 504 518 348 518 357 503 350 347 357 354 349 352 353 355 341 356 515 359 506 358 517 361 364 370 506 362 366 365 367 507 363 M1-2
FRONT LOADING UNIT 15 EXPLODED VIEW 420 425 415 416 417 402 401 406 405 404 421 410 419 403 418 407 411 414 409 426 423 421 422 408 422 412 413 411 424 M1-3
CHASSIS/FRONT LOADING UNIT 15 REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION Q'TY REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. SYSCON PCB ASS'Y *** CAPACITORS *** *** RESISTOR *** ! R1042 C4507 C4514 C4515 C5006 C5010 C5012 C5013 C5015 C5016 C5017 C5023 C5026 C5027 C5030 C6102 C6105 C6110 C6119 C6149 C6312 C6402 C6403 S6-558-12R-7J0 RES,M/F 2.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. *** OTHERS *** CY757 S6-CH1-A00-2A0 CORD,CONN CH1A002A CP4002 S6-CH2-207-0A0 CORD,CONN CH22070A *** CAPACITORS *** OPERATION PCB ASS'Y *** CAPACITOR *** C755 87-015-975-080 CAP,E 220-6.3V *** DIODE *** D795 S0-21M-5Q1-300 LED,EM-553-F9T *** TRANSISTOR *** Q751 87-026-464-080 TR,DTC114TS ! ! *** JACK *** J351 S6-021-310-120 JACK,RCA,3.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. *** OTHER *** OS753 *** FILTERS *** S7-7Q0-000-170 REMOTE RECEIVER PIC-28143TH5 CF6001 CF6002 CF6003 CF6004 CF6005 HEAD AMP PCB ASS'Y *** CAPACITOR *** C4107 87-016-088-040 CAP,E 220-6.
2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 920074 Printed in Japan
