Diagnose the IC800 (through hole) of Composite/S/
Component OUT and later.
Note: When the connection is S Component OUT,
refer to the diagnose of IC800 and later in steps 8 and 9.
Is there a
signal?
No
Ye s
CN1253 (Pin 6)
Diagnose the COMPONENT Assy.
To Step 11 or 12.
A_VCYOUT
Check the soldering and
connection of the CN1253.
Check Q1202 and its peripheral circuits.
Is there a
signal?
No
Ye s
Replace Q1202 and its peripheral
parts.
IC800 (through hole)
(Pins E13,D13,E12,D12,E11,
D11,E10,D10,D15) (side B)
Are there
signals?
No
Ye s
VID0-7, VICLK
Check IC1805, IC1806 and its
peripheral circuits.
Step 10: COMPOSITE IN, COMPOSITE OUT
(at DVC ON)
Step 11: GUI
Composite/S/Component OUT
Go to .
D
Step 12: GUI
HDMI OUT
Step 13: JPEG (USB)
Perform the same check items up to
those for IC1805 and IC1806 of Step 7.
Is there a
signal?
No
Ye s
R1214
Replace the DIGITAL MAIN Assy.
A_VCYOUT_EM
A_VCYOUT
Check IC800 and its peripheral
circuits. Check the soldering.
NG
Are there
signals?
No
Ye s
R1254,R1255
Check the USB device.
D+, D-
Check CN1259 and L1250 and
its peripheral circuits.
NG
IC1805 (Pins 2-9),
IC1806 (Pin 2) (side B)
Are there
signals?
No
Ye s
VDQ**
VDOCLK
Check IC1701 and its peripheral
circuits.
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