Read Sony DAV-TZ150 Service Manual online
DAV-TZ150
18
1. Operation Check Flow
The power is
turned on.
turned on.
Check that the following fuse is not damaged.
F900 on the POWER board
F900 on the POWER board
Check that the output voltage of the pin 1 of
CN901 on the POWER board is +25 V.
CN901 on the POWER board is +25 V.
NG
OK
OK
OK
– Continued on next page –
Exchange the F900.
Part No.
9-885-166-83
Part No.
9-885-166-83
Exchange the POWER board.
NG
NG
Check that voltage (+5.3V) is normally inputted
into the pin 8 (PH) of IC503 on the MAIN board.
into the pin 8 (PH) of IC503 on the MAIN board.
NG
Description
FUSE (T 3.15 AL/250 V)
FUSE (T 3.15 AL/250 V)
Exchange the IC503.
Part No.
6-716-575-01
Part No.
6-716-575-01
OK
Check that voltage (+3.3V) is normally outputted
from the pin 2 (OUT) of IC501 on the MAIN board.
from the pin 2 (OUT) of IC501 on the MAIN board.
NG
Exchange the IC501.
Part No.
9-885-166-91
Part No.
9-885-166-91
Description
IC TPS54331GDR
IC TPS54331GDR
Description
IC AP2125N-3.3TRG1
IC AP2125N-3.3TRG1
OK
Check that voltage (+3.3 V) is outputted from the
pin 2 (OUT) of IC502 on the MAIN board.
pin 2 (OUT) of IC502 on the MAIN board.
NG
Exchange the IC502.
Part No.
9-885-166-90
Part No.
9-885-166-90
OK
Check that voltage (+3.3 V) is outputted from the
pin 2 (OUT) of IC504 on the MAIN board.
pin 2 (OUT) of IC504 on the MAIN board.
NG
Exchange the IC504.
Part No.
9-885-166-90
Part No.
9-885-166-90
Description
IC AZ1117D-3.3
IC AZ1117D-3.3
Description
IC AZ1117D-3.3
IC AZ1117D-3.3
OK
Check that there is no heat damage in the
appearance of IC101/IC102/IC103 on the
MAIN board.
appearance of IC101/IC102/IC103 on the
MAIN board.
OK
Exchange the MAIN board.
NG
Exchange the IC101/IC102/IC103.
Part No.
9-885-166-88
Part No.
9-885-166-88
Description
IC STA518
IC STA518
– MAIN board confirmation –
SECTION 3
TROUBLESHOOTING
Ver. 1.1
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