Read Sony STR-DN1030 (serv.man2) Service Manual online
STR-DN1030
6
Flow of Repair (when sound is not outputted) (5/6)
Check that voltage of the
following pin is 3.3 V.
D
‐VIDEO NW board :IC3500
pin21(RESET) 3.3V
Check that voltage of the
following pin is 3.3 V.
D
‐VIDEO NW board :IC3000
pin70(RX_RST): 3.3V
Check that voltage of the
following pin is 3.3 V.
D
‐VIDEO NW board :IC3000
pin39(RESET): 3.3V
Check the following parts and the
surrounding circuit, and
exchange the defective parts.
D
‐VIDEO NW board :IC3000
Check the following parts and
the surrounding circuit, and
exchange the defective parts.
D
‐VIDEO NW board : IC3003
DIGITAL board: IC2105
Check the following parts and
the surrounding circuit, and
exchange the defective parts.
D
‐VIDEO NW board :X3000
Check that the X3000 on the
D
‐VIDEO NW board is oscillated
normally.
Check the signal line between
pin 70 of the IC3000 on the
D
‐VIDEO NW board and pin 21
of the IC3500 on the D
‐VIDEO
NW board, and the soldering
of the IC3000 and IC3500 on
the D
‐VIDEO NW board.
Check the following parts and
the surrounding circuit, and
exchange the defective parts.
D
‐VIDEO NW board :X3501
Exchange the D
‐VIDEO NW
board.
Check that clock signal is
inputted to the following pin.
D
‐VIDEO NW board :IC3500
Pin4(XTALOUT)
Check that data is outputted
from the following pins.
D
‐VIDEO NW board :IC3500
pin101,102,103,104,106
Check the following parts and
the surrounding circuit, and
exchange the defective parts.
D
‐VIDEO NW board :
IC3011,IC3012
OK
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
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