............................................................3-3
.............................................................................3-4
4. OSD CIRCUIT .......................................................3-10
5. Y/C CIRCUIT..........................................................3-11
4. NORMAL AUDIO BLOCK DIAGRAM ....................3-26
• WAVEFORMS .........................................................3-48
ELECTRICAL TROUBLESHOOTING
GUIDE & WAVEFORMS
BLOCK DIAGRAMS
1. VDR MAIN H/ W BLOCK DIAGRAM.....................3-65
2. POWER BLOCK DIAGRAM ..................................3-66
3. AUDIO IN/ OUT BLOCK DIAGRAM ......................3-67
4. CPU & CONTROL REGISTER
BLOCK DIAGRAM.................................................3-68
5. VIDEO IN/ OUT BLOCK DIAGRAM ......................3-69
HOST_CPLD/LATCH CIRCUIT DIAGRAM ...........3-74
CIRCUIT DIAGRAM ..............................................3-76
CIRCUIT DIAGRAM ..............................................3-80
CIRCUIT DIAGRAM ..............................................3-82
SECTION 3
ELECTRICAL
CONTENTS
..............................3-2
................................................3-20
..............................................3-34
.........................3-52
........................................3-58
................................................3-65
..............................................3-70
• WAVEFORMS .........................................................3-86
1. VCR P.C.BOARD(TOP VIEW) ...............................3-94
2. POWER P.C.BOARD (BOTTOM VIEW)................3-96
...........................................................................3-98
BLOCK DIAGRAMS & DESCRIPTION
1. OVERALL BLOCK DIAGRAM .............................3-112
3. MAJOR IC INTERNAL BLOCK DIAGRAM AND
..........................................................3-131
4. SDRAM CLOCK ..................................................3-132
(CD SERIES) .....................................................3-136
12. DISC TYPE JUDGEMENT WAVEFORM
(CD&CD-R) ........................................................3-136
(CD-RW) ............................................................3-137
14. DISC TYPE JUDGEMENT WAVEFORM
(DVD SERIES)...................................................3-137
15. DISC TYPE JUDGEMENT WAVEFORM
(DVD_SINGLE&R).............................................3-138
(DVD _DUAL) ....................................................3-138
17. DISC TYPE JUDGEMENT WAVEFORM
(DVDRW) ...........................................................3-139
21. FOCUS ON SIGNAL(CD) ..................................3-141
23. FOCUS ON SIGNAL (DVD)...............................3-142
30. WOBBLE(DVD+R/RW)_READING &
3-1
3-1
.........................3-94
..........3-112
............................................3-149
.......................3-155