Electrical Section - Philips DVP3350V Service Manual

VCR PART
ELECTRICAL ADJUSTMENT
PROCEDURES
..................................................3-2
ELECTRICAL
TROUBLESHOOTING GUIDE
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
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
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
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
SECTION 3
ELECTRICAL
CONTENTS
......................3-3
......................................3-19
....................................3-29
...............3-53
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
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
1. SYSTEM BLOCK DIAGRAM ......................3-84
2. SERVO BLOCK DIAGRAM.........................3-85
3. AUDIO & VIDEO IN/OUT
BLOCK DIAGRAM ......................................3-86
CIRCUIT DIAGRAMS
1. SYSTEM CIRCUIT DIAGRAM.....................3-87
2. SERVO CIRCUIT DIAGRAM.......................3-89
3. AV/JACK CIRCUIT DIAGRAM ....................3-91
IC BLOCK DIAGRAMS ...................................3-93
3-1 3-1
.............................3-71
......................................3-84
....................................3-87