Philips DVP3350V/01 Service Manual page 18

VCR PART
VCR ELECTRICAL ADJUSTMENT
PROCEDURES
................................................3-2
1. SERVO ADJUSTMENT ................................3-2
VCR 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. SYSTEM BLOCK DIAGRAM......................3-21
3. AVCP BLOCK DIAGRAM ...........................3-23
4. HI-FI BLOCK DIAGRAM ............................3-25
5. TUNER BLOCK DIAGRAM ........................3-27
CIRCUIT DIAGRAMS
1. POWER(SMPS) CIRCUIT DIAGRAM ........3-29
2. SYSTEM CIRCUIT DIAGRAM ...................3-31
3. AVCP CIRCUIT DIAGRAM.........................3-33
4. HI-FI CIRCUIT DIAGRAM ..........................3-35
5. TUNER CIRCUIT DIAGRAM......................3-37
WAVEFORMS ................................................3-39
CIRCUIT VOLTAGE CHART .........................3-41
IC BLOCK DIAGRAMS..................................3-47
PRINTED CIRCUIT BOARD
DIAGRAMS
.....................................................3-51
1. MAIN P.C.BOARD (TOP SIDE) ..................3-51
2. MAIN P.C.BOARD (BOTTOM SIDE) ..........3-53
3. POWER P.C.BOARD..................................3-55
4. KEY P.C.BOARD ........................................3-57
SECTION 3
ELECTRICAL
CONTENTS
....................3-3
.....................................3-19
..................................3-29
DVD PART
DVD ELECTRICAL
TROUBLESHOOTING GUIDE
1. POWER CHECK FLOW.............................3-59
2. SYSTEM OPERATION FLOW ...................3-60
3. TEST & DEBUG FLOW .............................3-61
DETAILS AND WAVEFORMS ON
SYSTEM TEST AND DEBUGGING
1. SYSTEM 27MHZ CLOCK,
RESET SIGNAL .........................................3-67
2. SDRAM CLOCK ........................................3-68
3. TRAY OPEN/CLOSE SIGNAL....................3-68
4. SLED CONTROL RELATED SIGNAL
(NO DISC CONDITION).............................3-70
5. LENS CONTROL RELATED SIGNAL
(NO DISC CONDITION) ............................3-70
6. LASER POWER CONTROL RELATED
SIGNAL (NO DISC CONDITION)...............3-71
7. FOCUS ON WAVEFORM...........................3-71
8. SPINDLE CONTROL WAVEFORM
(NO DISC CONDITION).............................3-72
9. TRACKING CONTROL RELATED
SIGNAL (SYSTEM CHECKING) ................3-73
10. RF WAVEFORM .........................................3-74
11. ZR36966 AUDIO OPTICAL AND
COAXIAL OUTPUT (SPDIF) .......................3-74
12. ZR36966 VIDEO OUTPUT WAVEFORM...3-75
13. AUDIO OUTPUT FROM
AUDIO PREAMP ........................................3-76
BLOCK DIAGRAMS
1. SYSTEM BLOCK DIAGRAM......................3-77
2. SERVO BLOCK DIAGRAM ........................3-78
3. AUDIO & VIDEO IN/OUT
BLOCK DIAGRAM .....................................3-79
CIRCUIT DIAGRAMS
1. MPEG CIRCUIT DIAGRAM........................3-81
2. SERVO CIRCUIT DIAGRAM......................3-83
3. JACK CIRCUIT DIAGRAM .........................3-85
IC BLOCK DIAGRAMS..................................3-87
3-1
..................3-59
........3-67
.....................................3-77
..................................3-81