PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY, SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER- TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY SONNEL COVER THE SUBJECT OF X-RADIATION.
SERVICING PRECAUTIONS CAUTION : Before servicing the DVD covered by this service Electrostatically Sensitive (ES) Devices data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged SAFETY PRECAUTIONS. NOTE : if unforeseen circum- easily by static electricity.
SPECIFICATIONS • GENERAL Power requirements AC 120V, 60Hz(USA), AC 110~220V, 60Hz(EUROPE) Power consumption Dimensions(approx.) 430 x 69 x 230mm (W/h/d) Mass(approx.) 3.4kg Operating temperature 5˚C to 35˚C (41˚F to 95˚F) Operating humidity 5% to 9% • SYSTEM Laser Semiconductor laser, wavelength 650nm Signal system NTSC(USA), NTSC/PAL(EUROPE) Frequency response...
DISASSEMBLY CAUTION BEFORE STARTING SERVICING Electronic parts are susceptible to static electricity and may easily and damaged, so do not forget to take a proper grounding treatment as required. Many screws are used inside the unit. To prevent missing, dropping, etc. of the screws, always use a magnetized screw driver in servicing.
CIRCUIT BOARD DISASSEMBLY Note: Before removing the main circuit board, be sure to shortcircuit the laserdiode output land. After replacing the main circuit board, open the land after inserting the flexible connector. (Refer to Mechanism Disassembly) 1. Disassembling of Main Circuit Board and Interface Board 2.
EXPLODED VIEWS 1. Cabinet and Main Frame Section NOTES) Warning NOTES) Parts that are shaded are critical NOTES) With respect to risk of fire or NOTES) electricial shock.
ELECTRICAL TROUBLESHOOTING GUIDE 1. Power(SMPS) Circuit No 5V_D No VF+ or 5V_A . Is 5.2VA section working? Is 5.2VA section working? Is oscillation present at the Is oscillation present at the anode of D109? Base of Q108? No 5.2VA. Replace D109. Replace Q108.
2. µ-COM Circuit A. No Power POWER ON Does Hello appear at FLD? Is P5901 Does no DISC appear? connected normally? Reconnect it. Does Logo appear Check power. on the screen? (Refer to power) If power is normal Is P5901 Pin 23 normal? Refer to Front Part The waveform Is oscillation of...
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B. Audio abnormal C. Video abnormal AUDIO ABNORMAL VIDEO ABNORMAL Check Audio jack. Check Video jack. YES (If OK) YES (If OK) Check MPEG_CLK Signal Refer to Video part. of MPEG part. YES (If OK) YES (If OK) Refer to Audio part. Refer to MPEG part.
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E. Picture abnormal PICTURE ABNORMAL Check the disc. Refer to Servo part If OK Check MPEG_CLK Signal of MPEG part YES (If OK) Check DSP YES (If OK) Check MPEG YES (If OK) Replace B/D F. Disc Error DISC ERROR Check Disc YES (If OK) Refer to Servo part...
3. MPEG Circuit Power is on Does Logo appear Check power & clock. on the screen? Does the Check CD/DVD DSP output moving picture of the DVD Disc Is MPEG data signal normal? play on the screen signal. normally? Check MPEG Decoder input signal.
4. Front Circuit (Digitron & key) START Power on. Is oscillation of Check Power. LED ON? X901 normal? Check waveform Is Digitron on normally? Replace IC902. of IC901 Pin 7. Do all the Is waveform of IC901 Check waveform buttons work Pin 21 normal? of IC901 Pin 14.
5. RF/Servo Circuit CHECK POINT(General) Does signal goes "High" to IC201 Pin186 when the power is on? Does signal pulse Check "2.µ-COM Part". input to IC201 Pins 53, 54 when the power is on? Does Does Replace X201 or IC206 TTL pulse output to 33.8688MHz clock input IC201 Pin 156?
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No disc .Power on Check loading Part. Push Pick-up to inner track to Does tray open or close? the end by hand. Does DECK assembly is defective. PMD03 Pin 10 change (Limit sw) high to low? Pressing the open/close key repeatedly, check the voltage of IC2M1 check µ-COM Part.
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DISC IN OPEN/CLOSE Fig.3. FOCUS ERROR waveform Check Check IC2A1 Pins 47,50,51,52 the focus error moving the FOCUS ON? lens up and down. in DVD Mode (IC2A1 Pin 39) IC201 no output : Pick-up is defective. Does the TTL level change at IC201 Replace IC201.
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CHECK A Fig.5. RF waveform Check RF Eye-Pattern. Check IC2A1 Pin 3. No signal: Pick-up is defective RF : 1.0~1.1V(TP2A0) Does the sawtooth waveform emit Is the eye-pattern vivid? Does the 1.6V emit? Replace IC2A1. at IC2A1 Pin 36? Replace IC201. Check IC201 Pin84.
2. Voltages are DC-measured with a digital voltmeter MODIFIED OR ALTERED WITHOUT PERMISSION IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode. FROM THE NAD ELECTRONICS CORPORATION. ALL PERFORMANCE IMPROVEMENT CHANGES INTO COMPONENTS SHOULD BE REPLACED ONLY WITH THE SET IS NOT DELAYED UNTIL THE NEW SERVICE TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIR- LITERATURE IS PRINTED.
5. AUDIO CIRCUIT DIAGRAM 220µ/6.3V IC401 is defective 2CH Audio out bad 47µ/16V IC402 is defective 2CH Audio out bad IC452 is defective 5.1CH FL/FR Audio out bad IC451 is defective 5.1CH Audio out bad IC453 is defective 5.1CH RL/RR Audio out bad IC454 is defective 5.1CH Center/woofer Audio out bad 5.1CH RL SIGNAL...
6. MEMORY CIRCUIT DIAGRAM Digitron all not display system not working program download fail Digitron all not display system not workry Digitron all not display system not working Tray not open/close Digitron all not display system not working Tray not open/close 3-29 3-30...
7. FRONT CIRCUIT DIAGRAM SYSTEM not operate Digitron abnormal Remocon not operate SYSTEM not operate KARAOKE not operate KARAOKE OPTION (WITH OUT) 3-31 3-32...
• CIRCUIT VOLTAGE CHART IC203 IC201 IC301 IC3F1 IC501 IC305 IC2A1 IC2M1 IC203 IC201 IC301 IC3F1 IC501 IC305 IC2A1 IC2M1 IC203 IC201 IC301 IC3F1 IC501 IC305 IC2A1 IC2M1 PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY 3.18...
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IC901 IC451 IC401 IC454 IC453 IC452 IC402 IC801 IC503 IC502 IC2A4 IC2A2 IC206 IC504 IC506 PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY 2.98 2.98 5.51 5.51 5.41 5.42...
DECK MECHANISM DISASSEMBLY HOLDER CLAMP PLATE CLAMP CLAMP ASSEMBLY DISC MAGNET CLAMP TRAY DISC CLAMP UPPER (S1) (Fig. A) HOLDER CLAMP BASE MAIN EMERGENCY EJECT HOLE (L1) BASE MAIN LEVER HOLDER CLAMP (L1) BASE MAIN BOTTOM SIDE VIEW Fig. 4-1 Fig.
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Parts that are shaded are critical Flash memory, you must order NOTES) With respect to risk of fire or "IC3F1A" NOTES) electricial shock. SECTION 5 REPLACEMENT PARTS LIST MODELS:(A)T512AH, (B)T512C, (C)T532AH, (D)T532C(NAD) RUN DATE:AUG.06.2002 .MECHANICAL SECTION NSP:Not Service Part LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION...
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ER03X HI WATT 1.5V .MA/H AAA 6851RP0003N O CABLE ASSY,RF DVD CABLE ASSY,RCA USING AREA 6611R1G001A O PLUG ASSY 1WAY YELLOW GLOBAL 6611R2G001A O PLUG ASSY 2WAY RED/WHITE GLOBAL .REMOTE CONTROL SECTION 6711R2N010W O REMOTE CONTROLLER ASSY D1 NOR DVN4021N NAD...
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.ELECTRICAL SECTION LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS CAPACITOR C101 624-088S O CAPACITOR,DRAWING MPX104K ETR/EUROPTRONIC BULK C102 0CG3320U632 O CAPACITOR,FIXED CERAMIC(TEMP.C 3300PF D 400V 20% R Y ( N 800 C103 0CE1076Q600 CAPACITOR,ELECTROLYTIC 100UF SMS 200V M W BULK C103 0CE686CU611 O CAPACITOR,AL.ELECTROLYTIC...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS C253 0CH1105D942 O CAPACITOR,CHIP[CERAMIC M/L HD 1UF 10V Z Y5V(F) 1508 R/TP C254 0CH1105D942 O CAPACITOR,CHIP[CERAMIC M/L HD 1UF 10V Z Y5V(F) 1508 R/TP C255 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C258 0CH1105D942 O CAPACITOR,CHIP[CERAMIC M/L HD...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS C2M3 0CH1472K562 O CAPACITOR,CHIP[CERAMIC M/L HD 4700PF 50V K X7R(X) 1608 R/TP C2M4 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C2M5 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C2M6 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS C511 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C512 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C513 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C514 0CH1104K942 O CAPACITOR,CHIP[CERAMIC M/L HD...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS C915 0CN1040K948 O CAPACITOR,FIXED TUBULAR(High d 0.1UF D 50V 80%,-20% F(Y5V) TA C916 0CN1040K948 O CAPACITOR,FIXED TUBULAR(High d 0.1UF D 50V 80%,-20% F(Y5V) TA DIODE&DIGITRON D100 0DD221009AA O DIODE,RECTIFIERS ERA22-10 KFLB,TP ,R T/P,FUJI D102 0DR158220AA O DIODE,RECTIFIER...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS COIL&FILTER&LED F602 6200HJC901A O FILTER(CIRC),EMC CFI06B1H101MF SAMHWA TP 2-5K F603 6200HJC901A O FILTER(CIRC),EMC CFI06B1H101MF SAMHWA TP 2-5K F604 6200HJC901A O FILTER(CIRC),EMC CFI06B1H101MF SAMHWA TP 2-5K F605 6200HJC901A O FILTER(CIRC),EMC CFI06B1H101MF SAMHWA TP 2-5K F606 6200HJC901A O FILTER(CIRC),EMC...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS R102 0RD2203F608 O RESISTOR,FIXED CARBON FILM 220K OHM 1/6 W 5.00% TA26 R103 0RS5602K619 O RESISTOR,FIXED METAL OXIDE FIL 56K OHM 2 W 5.00% TR R104 0RD2203F608 O RESISTOR,FIXED CARBON FILM 220K OHM 1/6 W 5.00% TA26 R112 0RD0391F608 O RESISTOR,FIXED CARBON FILM...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS R2A9 0RH5602C622 O RESISTOR,METAL GLAZED(CHIP) 56K OHM 1 / 16 W 1608 5.00% D R2B0 0RH1001C622 O RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R2B1 0RH1001C622 O RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R2B2 0RH0182C622...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS R2N8 0RH1002C622 O RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D R2N9 0RH1002C622 O RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D R2P0 0RH4701C622 O RESISTOR,METAL GLAZED(CHIP) 4.7K OHM 1 / 16 W 1608 5.00% D R2P1 0RH1002C622...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS R410 0RD7501F608 O RESISTOR,FIXED CARBON FILM 7.5K OHM 1/6 W 5.00% TA26 R411 0RD7501F608 O RESISTOR,FIXED CARBON FILM 7.5K OHM 1/6 W 5.00% TA26 R412 0RD1801F608 O RESISTOR,FIXED CARBON FILM 1.8K OHM 1/6 W 5.00% TA26 R413 0RD1002F608 O RESISTOR,FIXED CARBON FILM...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS R607 0RD1001F608 O RESISTOR,FIXED CARBON FILM 1K OHM 1/6 W 5.00% TA26 R608 0RD1001F608 O RESISTOR,FIXED CARBON FILM 1K OHM 1/6 W 5.00% TA26 R609 0RD1001F608 O RESISTOR,FIXED CARBON FILM 1K OHM 1/6 W 5.00% TA26 R618 0RD1003F608 O RESISTOR,FIXED CARBON FILM...
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LOCA.NO PART NO(LG) D DESCRIPTION SPECIFICATION REMARKS R960 0RD1003F608 O RESISTOR,FIXED CARBON FILM 100K OHM 1/6 W 5.00% TA26 R961 0RD1003F608 O RESISTOR,FIXED CARBON FILM 100K OHM 1/6 W 5.00% TA26 R969 0RD1003F608 O RESISTOR,FIXED CARBON FILM 100K OHM 1/6 W 5.00% TA26 R970 0RD1003F608 O RESISTOR,FIXED CARBON FILM...
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SPECIFICATION REMARKS P9501 6630R-BE024 O CONNECTOR (CIRC),BOARD TO BOAR 2254-30P-T/JE611-A2T-30T POWER P9904 561-711C O CONNECTOR (CIRC),WAFER GIL-S-03P-S2T2-EF LG CABLE 3PI PBT00 6871R-5049A O PWB(PCB) ASSEMBLY,TOTAL DVN5022E KEY NAD TOOL PW101 561-292B O CONNECTOR GP390 LGC 3P 3.96 STRAIGHT SN 5-15...