3-1
SECTION 3
ELECTRICAL
CONTENTS
OVERALL WIRING DIAGRAM
.....................3-2
VCR PART
ELECTRICAL ADJUSTMENT
PROCEDURES
..................................................3-3
ELECTRICAL
TROUBLESHOOTING GUIDE
......................3-4
1. POWER(SMPS) CIRCUIT .............................3-4
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
7. TUNER/IF CIRCUIT .....................................3-19
BLOCK DIAGRAMS
......................................3-21
1. POWER (SMPS) BLOCK DIAGRAM ..........3-21
2. TU/IF BLOCK DIAGRAM ............................3-23
3. Y/C BLOCK DIAGRAM ...............................3-25
4. NORMAL AUDIO BLOCK DIAGRAM .........3-27
5. HI-FI BLOCK DIAGRAM .............................3-29
6. SYSTEM BLOCK DIAGRAM ......................3-31
CIRCUIT DIAGRAMS
....................................3-33
1. POWER (SMPS) CIRCUIT DIAGRAM ........3-33
2. TU/IF CIRCUIT DIAGRAM ..........................3-35
3. A/V CIRCUIT DIAGRAM .............................3-37
4. HI-FI CIRCUIT DIAGRAM ...........................3-39
5. JACK CIRCUIT DIAGRAM..........................3-41
6. SYSTEM CIRCUIT DIAGRAM.....................3-43
• WAVEFORMS................................................3-45
• CIRCUIT VOLTAGE CHART.........................3-47
• IC BLOCK DIAGRAMS .................................3-51
PRINTED CIRCUIT DIAGRAMS
...............3-53
1. MAIN P.C.BOARD (TOP SIDE) ...................3-53
2. MAIN P.C.BOARD (BOTTOM SIDE)...........3-57
3. POWER P.C.BOARD ...................................3-59
4. KEY P.C.BOARD .........................................3-59
DVD PART
ELECTRICAL TROUBLESHOOTING
GUIDE
................................................................3-61
1. SYSTEM OPERATION FLOW .....................3-61
2. SYSTEM TEST FLOW .................................3-62
DETAILS AND WAVEFORMS ON SYSTEM
TEST AND DEBUGGING
............................3-63
1. SYSTEM 27MHZ CLOCK, RESET,
FLASH R/W SIGNAL ...................................3-68
2. SDRAM CLOCK ...........................................3-70
3. TRAY OPEN/CLOSE SIGNAL .....................3-70
4. SLED CONTROL RELATED SIGNAL
(NO DISC CONDITION) ..............................3-71
5. LENS CONTROL RELATED SIGNAL
(NO DISC CONDITION) ...............................3-71
6. LASER POWER CONTROL RELATED
SIGNAL(NO DISC CONDITION).................3-72
7. DISC TYPE JUDGEMENT WAVEFORM .....3-72
8. FOCUS ON WAVEFORM .............................3-73
9. SPINDLE CONTROL WAVEFORM
(NO DISC CONDITION) ...............................3-74
10. ZR36868 AUDIO OPTICAL AND
COAXIAL OUTPUT(SPDIF) .......................3-75
11. ZR36868 VIDEO OUTPUT WAVEFORM ...3-75
12. ZR36868 AUDIO OUTPUT TO
AUDIO DAC ...............................................3-76
13. AUDIO OUTPUT FROM AUDIO DAC .......3-77
BLOCK DIAGRAMS
.....................................3-78
1. OVERALL BLOCK DIAGRAM ................3-78
2. SERVO BLOCK DIAGRAM .........................3-79
3. VIDEO & AUDIO BLOCK DIAGRAM ..........3-80
CIRCUIT DIAGRAMS
...................................3-81
1. SYSTEM CIRCUIT DIAGRAM .....................3-81
2. RF & DSP SERVO CIRCUIT DIAGRAM .....3-83
3. AV/JACK CIRCUIT DIAGRAM.....................3-85
• IC BLOCK DIAGRAMS..................................3-87
Summary of Contents for ZDX-313
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Page 40: ...3 35 3 36 2 TU IF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T PB REC...
Page 43: ...3 41 3 42 5 JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 49: ...3 53 3 54 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE...
Page 50: ...3 55 LOCATION GUIDE...
Page 51: ...3 56 LOCATION GUIDE...
Page 52: ...3 57 3 58 2 MAIN P C BOARD BOTTOM SIDE...
Page 53: ...3 59 3 60 4 KEY P C BOARD LOCATION GUIDE 3 POWER P C BOARD LOCATION GUIDE...
Page 54: ......
Page 70: ...3 76 12 ZR36868 AUDIO OUTPUT TO AUDIO DAC 2 COMPOSITE VIDEO SIGNAL FIG 11 2 FIG 12 1...
Page 71: ...3 77 FIG 13 1 13 AUDIO OUTPUT FROM AUDIO DAC...
Page 75: ...3 81 3 82 A B C D E F G H I J K L M N O P Q R S T CIRCUIT DIAGRAMS 1 SYSTEM CIRCUIT DIAGRAM...
Page 76: ...3 83 3 84 2 SERVO CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 77: ...3 85 3 86 3 AV JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
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