Service Manual
Page 6
...GENERAL Power requirements: Power consumption: Dimensions (Approx.): Weight (Approx.): Operating temperature: Operating humidity: • OUTPUTS VIDEO OUT: COMPONENT VIDEO OUT: AUDIO OUT: DIGITAL OUT (COAXIAL): • SYSTEM Laser: Signal system: Frequency response: Signal-to-noise ratio: Harmonic distortion: Dynamic range: AC ...0 dB), 600 Ω, RCA jack (L, R) x 1 0.5 V (p-p), 75 Ω, RCA jack x 1 Semiconductor laser, wavelength 650 nm PAL / NTSC DVD (PCM 96 kHz): 8 Hz to 44 kHz DVD (PCM 48 kHz): 8 Hz to 22 kHz CD: 8 Hz to 20 kHz More than 100 dB (ANALOG OUT connectors only) Less than...
...GENERAL Power requirements: Power consumption: Dimensions (Approx.): Weight (Approx.): Operating temperature: Operating humidity: • OUTPUTS VIDEO OUT: COMPONENT VIDEO OUT: AUDIO OUT: DIGITAL OUT (COAXIAL): • SYSTEM Laser: Signal system: Frequency response: Signal-to-noise ratio: Harmonic distortion: Dynamic range: AC ...0 dB), 600 Ω, RCA jack (L, R) x 1 0.5 V (p-p), 75 Ω, RCA jack x 1 Semiconductor laser, wavelength 650 nm PAL / NTSC DVD (PCM 96 kHz): 8 Hz to 44 kHz DVD (PCM 48 kHz): 8 Hz to 22 kHz CD: 8 Hz to 20 kHz More than 100 dB (ANALOG OUT connectors only) Less than...
Service Manual
Page 11
...Overall Block Diagram ...3-21 2. MPEG & MEMORY Block Diagram 3-24 5. DRIVER Circuit DIAGRAM...3-32 5. TIMER P.C.BOARD ...3-41 4. AUDIO OUTPUT FROM AUDIO DAC 3-20 BLOCK DIAGRAMS ...3-21 1. SYSTEM Circuit DIAGRAM 3-30 4. Test & debug flow ...3-4 DETAILS AND WAVEFORMS ON SYSTEM TEST AND... DEBUGGING 3-10 1. MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT (SPDIF 3-19 12. VIDEO & AUDIO Block Diagram 3-25 CIRCUIT DIAGRAMS ...3-26 1. Power check flow...3-2 2. SPINDLE CONTROL WAVEFORM(NO DISC CONDITION...
...Overall Block Diagram ...3-21 2. MPEG & MEMORY Block Diagram 3-24 5. DRIVER Circuit DIAGRAM...3-32 5. TIMER P.C.BOARD ...3-41 4. AUDIO OUTPUT FROM AUDIO DAC 3-20 BLOCK DIAGRAMS ...3-21 1. SYSTEM Circuit DIAGRAM 3-30 4. Test & debug flow ...3-4 DETAILS AND WAVEFORMS ON SYSTEM TEST AND... DEBUGGING 3-10 1. MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT (SPDIF 3-19 12. VIDEO & AUDIO Block Diagram 3-25 CIRCUIT DIAGRAMS ...3-26 1. Power check flow...3-2 2. SPINDLE CONTROL WAVEFORM(NO DISC CONDITION...
Service Manual
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E Normal Audio output when disc playback? YES Normal Audio DAC out? YES NO Audio DAC received NO correct data stream? Check connection between IR.VFD Front panel key & NO MT1389D is normally? Check the related circuit of Audio DAC. YES Check communication lines on Front panel. 3-9 NO YES Check Audio filter,amplify,mute circuit. Normal IR.VFD & Front NO panel key functions? TEST END Check the cable connection on MT1389D. YES Communications between MT1389D & Audio DAC.
E Normal Audio output when disc playback? YES Normal Audio DAC out? YES NO Audio DAC received NO correct data stream? Check connection between IR.VFD Front panel key & NO MT1389D is normally? Check the related circuit of Audio DAC. YES Check communication lines on Front panel. 3-9 NO YES Check Audio filter,amplify,mute circuit. Normal IR.VFD & Front NO panel key functions? TEST END Check the cable connection on MT1389D. YES Communications between MT1389D & Audio DAC.
Service Manual
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MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT (SPDIF) FIG 11-1 12. FIG 12-1 3-19 MT1389D VIDEO OUTPUT WAVEFORM 1) 100% TE TRSO T+ T- 11.
MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT (SPDIF) FIG 11-1 12. FIG 12-1 3-19 MT1389D VIDEO OUTPUT WAVEFORM 1) 100% TE TRSO T+ T- 11.
Service Manual
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MPEG & MEMORY Block Diagram 3-24 KARAOKE BOARD IC509 OP Amp IC508 A/D Con. (Karaoke) IC503 SDRAM 16M ACLK,ABCK ALRCK AMDAT DQM0,DQM1 DQ[0:15] DCLK,WE,CAS,RAS CS,DCKE,MA[0:10] IC505 RESET RESET IC IC501 (MPEG + DSP + RF) MT1389C SCL,SDA IC506 EEPROM Y2(Y),Y3(Color) Y4(Y),Y5(Cb),Y6(Cr) ASPECT(16:9) VIDEO Interface AMUTE,DMUTE AL,AR ASPDIF AUDIO Interface DIN DOUT PWR,PCE,PRD A[0:20] AD[0:7] X501 27MHz LED DRIVE IC IC502 FLASH MEMORY (8 M ) 4.
MPEG & MEMORY Block Diagram 3-24 KARAOKE BOARD IC509 OP Amp IC508 A/D Con. (Karaoke) IC503 SDRAM 16M ACLK,ABCK ALRCK AMDAT DQM0,DQM1 DQ[0:15] DCLK,WE,CAS,RAS CS,DCKE,MA[0:10] IC505 RESET RESET IC IC501 (MPEG + DSP + RF) MT1389C SCL,SDA IC506 EEPROM Y2(Y),Y3(Color) Y4(Y),Y5(Cb),Y6(Cr) ASPECT(16:9) VIDEO Interface AMUTE,DMUTE AL,AR ASPDIF AUDIO Interface DIN DOUT PWR,PCE,PRD A[0:20] AD[0:7] X501 27MHz LED DRIVE IC IC502 FLASH MEMORY (8 M ) 4.