DF-K34D2A-JS svc 2006.5.11 3:57 PM ∆‰¿Ã¡ˆC mac001 1200DPI 80LPI BLOCK DIAGRAM Mpeg part BLOCK diagram DDRAM(256M Bit) FLASH 16M Bit AUDIO R OUT to analog board DV 1394 INPUT ADC data CS4344 TSB41AB1 Audio DAC AUDIO L OUT to analog board...
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DF-K34D2A-JS svc 2006.5.11 3:57 PM ∆‰¿Ã¡ˆQ mac001 1200DPI 80LPI BLOCK DIAGRAM VIDEO Block Diagram ICM01 ICF02 DDRSDRAM SDRAM ADR/CTL DATA ADR/CTL DATA PF04(LOADER) ADR/CTL DATA ADR/CTL DATA PC02 CVBS IN ICF01 LVDS MT1888E S -VIDEO Y OUT APDD0 Disc Controller Single...
DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 44 mac001 1200DPI 80LPI TROUBLESHOOTING 1. POWER CIRCUIT CAUTION You must use insulated transformer during the first part test of POWER circuit. Hot circuit : Be careful and use an isolation transformer when servicing...
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 45 mac001 1200DPI 80LPI TROUBLESHOOTING 2. SYSTEM CIRCUIT A. LED DISPLAY No LED display. Is 5V obtained at IC701 Check L701A,D828 pin #9,25? Oscillation at IC701 pin #1? Exchange IC701. Specific KEY/SEG doesn t function.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 46 mac001 1200DPI 80LPI TROUBLESHOOTING B-1. Bad playback quality (1) Noise appears on the playback screen. Is noise diminished by tracking Re-adjust PATH. adjustment. Noise band is trembled up and Noise appears on the screen even Re-adjust PATH.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 47 mac001 1200DPI 80LPI TROUBLESHOOTING C. No broadcasting signal received No broadcasting signal received Is the output at IC601 pin# 71(CLK), Check IC 601. 72 (DATA) normal? Is SIF,Video output at TMI(RF101) Check TMI (RF101) Block.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 48 mac001 1200DPI 80LPI TROUBLESHOOTING VIDEO MAIN TOP D. No CASSETTE Loading Cassette tape isn t inserted. Is 5V voltage obtained at Loading Check at EVER 13V. parts IC601 pin#82? Is 13V voltage obtained at Check D857 and POWER circuit.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 49 mac001 1200DPI 80LPI TROUBLESHOOTING F. DRUM Motor stops DRUM Motor stops. Is 13V voltage obtained at P601 Check EVER 13V pin#8? (D 503,D504). Is DRUM PWM fit to IC 601 Check DRUM PG/FG(IC 601 pin# 90).
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 50 mac001 1200DPI 80LPI TROUBLESHOOTING 3. VIDEO circuit A. Troubleshooting of EE mode EE MODE Picture NG Is Video signal input into pin Check PIF circuit and LINE IN #48, 50,52 of IC301? JACK.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 51 mac001 1200DPI 80LPI TROUBLESHOOTING B. Troubleshooting of PB mode PB video signal missing. Is CLK-DATA signal input pin#68, Check IC601 pin# 71,72 69 of IC301? Is Envelope output from pin#21 of Is 5V supplied at IC301 pin#91? Check power circuit.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 52 mac001 1200DPI 80LPI TROUBLESHOOTING C. Troubleshooting of REC mode Record video signal NG. Check EE MODE. Is luminance and color signal Is signal input into IC301 output from IC301 pin #21, 46? pin# 48,50,52? Check POWER circuit.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 53 mac001 1200DPI 80LPI TROUBLESHOOTING D. Troubleshooting of OSD Character OSD Character incorrect. Is +5V supplied at IC601 pin# Check POWER circuit. 37, 53. 98.99? Does X601, XS11 crystal oscillate? Check X601, XS11.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 54 mac001 1200DPI 80LPI TROUBLESHOOTING F . DVD picture (COMPONENT & S-VIDEO) doesn't appear No COMPONENT Signal appear Is signal output from P302 Check FFC CABLE & DVD pin# 7, 9, 11? Module...
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 57 mac001 1200DPI 80LPI b. Video part Debug 1) EE screen does not appear No EE Mode Picture Is there video input signal Check CC51 and PC02. Check Analog Board. at pin256 of ICN01?
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 58 mac001 1200DPI 80LPI b. Video part Debug 1) EE screen does not appear No EE Mode Picture Is there video input signal Check CC51 and PC02. Check Analog Board. at pin256 of ICN01?
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 59 mac001 1200DPI 80LPI 3) Can not Record at DVD No Record Is there video input signal at Check Analog Board. Check CC51 and PC02. pin 256 of ICN01? Check RC51,RC52, Is there signal at XN01? Check XN01,CN17 and CN18 RC53,RC54,RC55 and RC56.
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 60 mac001 1200DPI 80LPI c. Audio part 1) No sound in DVD playback mode and No VCR sound 2) No sound in EE mode...
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DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 61 mac001 1200DPI 80LPI 3) SLED does not move Is there SLIN1and SLIN2 Check LDIN signal at pin46 of signal at pin29 and Check RF38 and RF39. ICF08. pin30 of ICF08 ? Is there SLO1ñand Replace ICF08.
DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘ ` 68 mac001 1200DPI 80LPI ELECTRICAL PARTSLIST Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
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