Sanyo VM-EX280P - TROUBLESHOOTING GUIDE; Camera Circuit Troubleshooting

8. TROUBLESHOOTING GUIDE
SUBINDEX
Auto-focus Inoperative
......................................
8-2
Capstan Does Not Rotate """""""""."".""."".."""""".""".". """8-3
Drum Does Not Rotate
......................................
8-3
Eject Inoperative
...............................”””””s..””””.”8-4
Incorrect Auto Exposure
....................................
8-2
Incorrect Auto Iris
............................................
8-2
Incorrect Auto White Balance
..............................
8-2
Loading Inoperative
..........................................
8-3
No AF/MF Change And Power Zoom Inoperative”””.”””8-2
No Color""""."""""""""""""""."""""""""""""""""-"-----"-o-oo--""8-1
No EE-Audio
....................................". """"... ""."8.7
No EE-Chroma
............................"""""""""""""""""""8-6
No EE-Video Monitor
.......................................
8-5
No EVFRaster ""."""".""."""o$oo.oooooo--o----ooooo"-"-oo--o-8-8
No Picture
.....................................................
8-1
No Picture In EVF""""" """."".""""--"-"-o"o----o"""""o"o"o"-"~-5
L
8-1. CAMERA CIRCUIT
SET POWER SW
TO “CAMERA”
I
f
4
REFER TO
“INCORRECT
AUTO IRIS”
I NO
1 OK
I
I
I
B
J
(CCD OUT)
OK
1 OK
CHECK Q9501
4
IC917-3 CHECK
(GY OUT)
IC916,1C917
1
OK
LUMA
LPF BLOCK
1
OK
IC914-6
LUMA
CHECK IC914
1
OK
LUMA
1
OK
I
I
NG
-7.5V115V -7.5V & 15V LINE
J
OK
CHECK
PULSES
1C916.IC918
1
OK
n
CHECK IC951
LPF BLOCK
Q9165,Q9166,L9190,L9191,
C9211,C9256,C9257,C9258,
C9261,R9182,R9191,R9192,
R9216,R9217,R9218,R9256,
R9257
No Play Audio """"""""""".. """""ooooooo""oo-oooooo+o---o"o"--o8-7
No P1ay Chrome"""""""""""".""."""""o-ooooo--o-"-o-oooo"o-o--8-5
No Play Video
........................................""""""""8.6
No Record Audio
.............................................
8-7
No Record Chroma
.....................”””.”””””.””.””””””””8-5
No Record Video
.............................................
8-6
Noisy Picture Only When Prerecorded Tape Is Played Back
..................................................................
8-6
No VFVideo"". "".""."""""""""".-"""".""""""""."""""----------8-8
On-Screen Display Inoperative (Servo/System Control) 8-4
On-Screen Display Inoperative (Video) 00”00”00”0““0”00““”8-5
Play Mode Inopemtive" ."""""".""""."""""o""oo-----------"o-o8-4
Power Loss/Power Switch Inoperative “”””.””.””””””””””.”8-4
Power Zoom Inoperative
s........s ........”. s”””””””””””””””8-2
Record Mode Inoperative
.....................”.. ””””.””””””8-3
E
CN933-12 OK ‘E~E~o~}O
(CAM C)
CHROMA”
NG
IC912-16 OK
CHECK
c OUT
R9027,R9028,
L9021,C9028
1 NG
1 OK
DLCO-OUT/
DLC1-IN
OUT A/lN A
OK
1 NG
CHECK
IC913,IC916
I
1
I
.
R9144,R9147,
C9137,C9140
1
OK
BFG, BF, CBLK
1
OK
I
I
I
CHECK IC912
I
– 8-1 –