902SH
2 – 32
CONFIDENTIAL
12. Sub Camera does not operate.
13. The display backlight does not turn on.
Replace the display PWB to a properly working
one, and activate the sub camera.
Is the image through the sub camera lens prop-
erly displayed?
The display PWB is defective. Find the cause.
Replace the thin coaxial to a non-defective one,
and activate the sub camera.
Is the image through the sub camera lens prop-
erly displayed?
The thin coaxial is defective.
Replace the main PWB to a properly working
one, and activate the sub camera.
Is the image through the sub camera lens prop-
erly displayed?
The main PWB is defective.
The display PWB is defective.
Is fuse FS2001 mounted properly, and is there
conduction?
FS2001 is mounted improperly, or the fuse is
blown.
Is the voltage applied to FS2001 when the volt-
age is applied to the battery terminals?
CN1501 and CN2000 are in poor contact with
the flexible PWB, or the flexible PWB is broken.
Is the LED FPC unit properly soldered to
TP3008 and TP3009?
The LED FPC unit is soldered improperly.
Is 10 - 16 V sent to TP2001?
IC2005, L2001, D2000, D2002, R2008, C2019,
C2009 and C2012 are defective or mounted
improperly.
Is 10 - 16 V sent to TP3025?
CN2000 and CN3001 are defective, mounted
improperly, or in poor contact. The thin coaxial
is broken.
LED is defective. LED FPC unit is defective.
IC2005 is defective.
YES
NO
YES
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Summary of Contents for 902SH
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