(6) White balance and black balance can not be adjusted.
White balance and black balance can not be adjusted.
No
Does the image appear?
Yes
Refer to the item
(1) Image is not displayed.
Yes
The specific color
is not displayed.
NoRefer to the item specific
color is not displayed.
Do the video signals
No
appear at pin 6, pin 4 and
pin 2 of CN1 on the
PR-228 board?
Yes
Check the PR-228 board.
Check the following conduction.
PR-228 board AT-115 board
No good
CN1 pin6 ------------
CN1 pin 25
4 ------------
26
2 ------------24
Check the harness and
CN1 on the PR-228,
CN1 on the AT-115 and
GoodCN202,204 on the
MB-724 board.
Check the following conduction.
PR-228 board AT-115 board
CN1 pin20 --------
IC10 pin 38
No
18 --------
39
16 --------
5
14 --------
4
12 --------3
Good
When the white balance is
No
operated, the pulse is appeared as follows.
Pin 15 of IC105
Pin 15 of IC306
Yes
Check the IC102,105, 302 and
306 on the PR-228 board.Check the AT-115 board.
5-12DKC-ST5 (UC,CE) |
ACEC
