3-1
3-1
SECTION 3
ELECTRICAL
CONTENTS
VCR PART
ELECTRICAL ADJUSTMENT
PROCEDURES
..................................................3-2
ELECTRICAL
TROUBLESHOOTING GUIDE
......................3-3
1. POWER(SMPS) CIRCUIT .............................3-3
2. SYSTEM/KEY CIRCUIT ................................3-6
3. SERVO CIRCUIT ...........................................3-7
4. Y/C CIRCUIT................................................3-10
5. HI-FI CIRCUIT..............................................3-14
6 TUNER/IF CIRCUIT ......................................3-17
BLOCK DIAGRAMS
......................................3-19
1. POWER (SMPS) BLOCK DIAGRAM ..........3-19
2. TU/IF, NICAM & A2 BLOCK DIAGRAM .....3-21
3. VPS BLOCK DIAGRAM ..............................3-22
4. Y/C BLOCK DIAGRAM ...............................3-23
5. Hi-Fi BLOCK DIAGRAM .............................3-25
6. SYSTEM BLOCK DIAGRAM ......................3-27
CIRCUIT DIAGRAMS
....................................3-29
1. POWER (SMPS) CIRCUIT DIAGRAM ........3-29
2. TU/IF CIRCUIT DIAGRAM ..........................3-31
3. A/V CIRCUIT DIAGRAM .............................3-33
4. Hi-Fi CIRCUIT DIAGRAM ...........................3-35
5. SCART(JACK) CIRCUIT DIAGRAM...........3-37
6. SYSTEM CIRCUIT DIAGRAM.....................3-39
WAVEFORMS ..................................................3-41
CIRCUIT VOLTAGE CHART ...........................3-43
IC BLOCK DIAGRAMS ...................................3-49
PRINTED CIRCUIT DIAGRAMS
...............3-53
1. MAIN P.C.BOARD (TOP SIDE) ...................3-53
2. MAIN P.C.BOARD (BOTTOM SIDE)...........3-55
3. POWER P.C.BOARD ...................................3-57
4. KEY P.C.BOARD .........................................3-59
DVD PART
ELECTRICAL TROUBLESHOOTING
GUIDE
.................................................................3-63
1. POWER OPERATION FLOW......................3-63
2. SYSTEM TEST FLOW.................................3-64
3. TEST & DEBUG FLOW...............................3-65
DETAILS AND WAVEFORMS ON SYSTEM
TEST AND DEBUGGING
.............................3-71
1. SYSTEM 27MHZ CLOCK, RESET,
FLASH R/W SIGNAL...................................3-71
2. SDRAM CLOCK ..........................................3-72
3. TRAY OPEN/CLOSE SIGNAL.....................3-72
4. SLED CONTROL RELATED SIGNAL
(NO DISC CONDITION)...............................3-74
5. LENS CONTROL RELATED SIGNAL
(NO DISC CONDITION)...............................3-74
6. LASER POWER CONTROL RELATED
SIGNAL(NO DISC CONDITION) .................3-75
7. DISC TYPE JUDGEMENT WAVEFORM ....3-75
8. FOCUS ON WAVEFORM ............................3-77
9. SPINDLE CONTROL WAVEFORM
(NO DISC CONDITION)...............................3-78
10. TRACKING CONTROL RELATED
SIGNAL(SYSTEM CHECKING) ................3-79
11. ZR36882 AUDIO OPTICAL AND COAXIAL
OUTPUT(SPDIF)........................................3-80
12. ZR36882 VIDEO OUTPUT WAVEFORM ..3-80
13. ZR36882 AUDIO OUTPUT TO
AUDIO DAC...............................................3-81
14. AUDIO OUTPUT FROM AUDIO DAC.......3-82
BLOCK DIAGRAMS
......................................3-84
1. SYSTEM BLOCK DIAGRAM ......................3-84
2. SERVO BLOCK DIAGRAM.........................3-85
3. AUDIO & VIDEO IN/OUT
BLOCK DIAGRAM ......................................3-86
CIRCUIT DIAGRAMS
....................................3-87
1. SYSTEM CIRCUIT DIAGRAM.....................3-87
2. SERVO CIRCUIT DIAGRAM.......................3-89
3. AV/JACK CIRCUIT DIAGRAM ....................3-91
IC BLOCK DIAGRAMS ...................................3-93
Содержание DVP3350V
Страница 35: ......
Страница 45: ...3 37 3 38 5 SCART JACK CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 52: ...3 51 3 52 IC301_LA71750EM IC801_TDA9605H IC501_MN101D10X IC751_MSP3417 3407 ...
Страница 53: ...3 53 3 54 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE ...
Страница 54: ...3 55 3 56 2 MAIN P C BOARD BOTTOM SIDE 2 MAIN P C BOARD BOTTOM SIDE ...
Страница 56: ...3 59 3 60 4 KEY P C BOARD ...
Страница 57: ...3 61 3 62 ...
Страница 68: ...3 73 2 Tray open waveform FIG 3 2 3 Tray close waveform FIG 3 3 OPEN CLOSE LM LM OPEN CLOSE LM LM ...
Страница 71: ...3 76 FIG 7 2 DVD FIG 7 3 CD FACT FACT FE FE SBAD SBAD ...
Страница 72: ...3 77 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO FACT FACT FACT FE SBAD ...
Страница 73: ...3 78 FIG 8 2 CD 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION DVD FIG 9 1 FOCUS FACT SPINDLE_S SP SP FE FACT ...
Страница 75: ...3 80 11 RF WAVEFORM FIG 11 1 12 ZR36882 AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF FIG 12 1 RFO SPDIF ...
Страница 76: ...3 81 13 ZR36882 VIDEO OUTPUT WAVEFORM 1 Full colorbar signal CVBS FIG 13 1 2 Y FIG 13 2 JK702 pin6 JK702 pin7 ...
Страница 77: ...3 82 14 AUDIO OUTPUT FROM AUDIO DAC 1 AUDIO L R FIG 14 1 3 C FIG 13 3 JK702 PIN8 JK702 PIN4 5 1KHz 0DB ...
Страница 78: ...3 83 2 Audio Related Signal FIG 14 2 AOUT0 ABCK ALRCLK ...
Страница 83: ...3 89 3 90 2 SERVO CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 84: ...3 91 3 92 3 AV JACK CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
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