Troubleshooting - Sharp LC-15AV1U Service Manual

Table of Contents for the Troubleshooting Flow Charts
Flow
Chart
No.
1 The power cannot be turned on.
2 The fuse blows out.
3 When the output voltage fluctuates.
4 When buzz sound can be heard in the vicinity of power circuit.
5 AL-8V is not outputted.
6 AL+3.3V is not outputted.
7 AL+40V is not outputted.
8 AL+5V is not outputted.
9 AL+33V is not outputted.
10 AL+12V is not outputted.
REG+5V ( 1 ) is not outputted.
11
REG+5V ( 2 ) is not outputted.
12
P-ON+3.3V ( D ) is not outputted.
13
P-ON+3.3V ( A ) is not outputted.
14
P-ON+1.8V ( D ) is not outputted.
15
16 PANEL+24V is not outputted.
17 PANEL+5.4V is not outputted.
18 PANEL-12V is not outputted.
19 PANEL+12V is not outputted.
20 PANEL+9V is not outputted.
21 The key operation is not functioning.
22 No operation is possible from the remote control unit.
Picture does not appear normally. ( Tuner input / Video input/S-Video input. )
23
Picture does not appear normally. ( Y / Pb / Pr input. )
24
Audio is not outputted normally. ( Tuner input. )
25
Audio is not outputted normally. ( Audio input terminals. )
26
NOTE: CBA AND PWB MEANS PRINTED WIRING
BOARD.

TROUBLESHOOTING

Description
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