Service manual
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PZ456
11
12
13
14
15
16
17
18
19
20
NO
YES
NO
YES
YES
YES
YES
NO
NO
YES
Step 2
Check the main
board
12V
?
+5.0 V ?
Check
U10
H/V input
Signal ?
Check the main
board
U3
V
DC2V
?
Change
U3
Check
H/V Signal
Display ?
OK !
Change
Signal Cable
Check
F1,D3
Check
U13
1
...
...
11
12
13
14
15
...
...
25
