Samsung SV-4000W Service Manual page 53

Troubleshooting
(MONO)
Audio missing in record mode
Check
audio missing in
EE mode
Yes
Place VCR in
record mode
Yes
Check
FL3A01-2
PC 5V
Yes
Check
IC301-5
0.7~3V
Yes
Check
FL3A01-6
about 50Vp-p
Yes
E
5-24
No See page 5-21
Audio missing in EE mode
No
Check
L3A02, C3A03
Check
No
IC301-6
more than
0.7
Yes
Change
Q3A05
No
Yes
Check
PC 5V Line
No
Check
C3A01, C3A10
Check
Q3A01, Q3A02, Q3A03, Q3A04,
C3A02, C3A03, C3A04, C3A05,
R3A03, R3A04, R3A05, R3A06,
R3A07, R3A08, R3A09
Yes
Change
FL3A01
Samsung Electronics