Sony TA-ZH1ES, Service Manual, Page: 31 / 108

TA-ZH1ES
31
3-4. No sound (or low sound) from LINE IN input
In advance to check the following a point.
• Connected to PS-HX500 (record player) through the EQ ampli fi er.
(An RIAA curve correction ampli fi er that phono ampli fi er or EQ ampli fi er etc. is required even for playback of regular records)
No sound (or low sound) from LINE IN
input.
Yes
The condition does not change even after
connecting the new POWER SUPPLY
board to the DIGITAL board.
Yes
Replace the POWER SUPPLY board to
new board.
No
Yes
No
Yes
Replace the jacks (J5101, J5102) and
surrounding parts on the LINE IN board to
new parts.
No
No problems such as broken wires with the
circuits around the jacks (J5101, J5102) on
the LINE IN board.
The connection cable that connects the
connector (CN5405) on the LPF board and
the connector (CN402) on the DIGITAL
board is not removed nor broken.
Re-insert or repair the connection cable.
(Twist three times and connect to stabilize
noise properties)
Sound is outputted from LINE IN input.
Yes
No problems with the surroundings of
IC406 on the DIGITAL board.
No
Yes
No
Replace the parts around IC406 on the
DIGITAL board to new parts.
Replace the DIGITAL board to new board.
End
Yes
Yes
Yes
Yes
Yes