3-1
SECTION 3
ELECTRICAL
CONTENTS
CONNECTOR PICTURE...............................3-2
1. ALL CONNECTOR PICTURE ......................3-2
2. CN702 CONNECTOR PICTURE .................3-3
3. P2201, P2202, CN603 CONNECTOR
PICTURE......................................................3-3
VCR PART
ELECTRICAL
ADJUSTMENT PROCEDURES..................3-4
1. SERVO ADJUSTMENT ..............................3-4
ELECTRICAL
TROUBLESHOOTING GUIDE ....................3-5
1. POWER(SMPS) CIRCUIT ..........................3-5
2. SYSTEM/KEY CIRCUIT .............................3-8
3. SERVO CIRCUIT........................................3-9
4. OSD CIRCUIT...........................................3-11
5. Y/C CIRCUIT ............................................3-12
6. HI-FI CIRCUIT ..........................................3-16
BLOCK DIAGRAMS.....................................3-19
1. POWER BLOCK DIAGRAM .....................3-19
2. Y/C BLOCK DIAGRAM .............................3-21
3. NORMAL AUDIO BLOCK DIAGRAM .......3-23
4. HI-FI BLOCK DIAGRAM...........................3-25
5. SYSTEM BLOCK DIAGRAM....................3-27
CIRCUIT DIAGRAMS ..................................3-29
1. POWER (SMPS) CIRCUIT DIAGRAM .....3-29
2. TUNER CIRCUIT DIAGRAM ....................3-31
3. AVCP CIRCUIT DIAGRAM .......................3-33
4. HI-FI CIRCUIT DIAGRAM ........................3-35
5. SYSTEM CIRCUIT DIAGRAM..................3-37
6. JACK CIRCUIT DIAGRAM .......................3-39
7. KEY CIRCUIT DIAGRAM .........................3-41
CIRCUIT VOLTAGE CHART .....................3-43
IC BLOCK DIAGRAMS...............................3-45
PRINTED CIRCUIT DIAGRAMS ..............3-47
1. MAIN P.C.BOARD (TOP SIDE) ................3-47
2. MAIN P.C.BOARD (BOTTOM SIDE) ........3-49
3. KEY P.C.BOARD ......................................3-51
4. POWER P.C.BOARD (TOP SIDE)............3-53
5. POWER P.C.BOARD (BOTTOM SIDE) ...3-55
DVD PART
ELECTRICAL
TROUBLESHOOTING GUIDE ..................3-57
1. POWER CHECK FLOW ...........................3-57
2. SYSTEM OPERATION FLOW..................3-58
3. SYSTEM TEST FLOW ............................3-59
DETAILS AND WAVEFORMS ON SYSTEM
TEST AND DEBUGGING
...........................3-65
1. SYSTEM 27MHZ CLOCK, RESET,
FLASH R/W SIGNAL ................................3-65
2. SDRAM CLOCK ......................................3-67
3. TRAY OPEN/CLOSE SIGNAL..................3-67
4. SLED CONTROL RELATED SIGNAL
(NO DISC CONDITION) ...........................3-68
5. LENS CONTROL RELATED SIGNAL
(NO DISC CONDITION) ..........................3-68
6. LASER POWER CONTROL RELATED
SIGNAL (NO DISC CONDITION) ............3-69
7. SPINDLE CONTROL WAVEFORM
(NO DISC CONDITION) ..........................3-69
8. FOCUS ON WAVEFORM .........................3-70
9. TRACKING CONTROL RELATED SIGNAL
(SYSTEM CHECKING).............................3-71
10. ZR966 AUDIO COAXIAL OUTPUT
(SPDIF) .....................................................3-72
11. ZR966 VIDEO OUTPUT WAVEFORM .....3-72
12. AUDIO OUTPUT FROM ZR966 ...............3-73
BLOCK DIAGRAMS.....................................3-74
1. MPEG BLOCK DIAGRAM ........................3-74
2. SERVO BLOCK DIAGRAM ......................3-76
3. AUDIO & VIDEO IN, OUT
BLOCK DIAGRAM....................................3-78
CIRCUIT DIAGRAMS ..................................3-80
1. SYSTEM CIRCUIT DIAGRAM..................3-80
2. SERVO CIRCUIT DIAGRAM ...................3-82
CIRCUIT VOLTAGE CHART .....................3-84
IC BLOCK DIAGRAMS...............................3-86