Sharp LC-15AV7U User Manual

7-1
A7121TS
TROUBLESHOOTING
Table of Contents for the Troubleshooting Flow Charts
No.
Chart
Flow
Description Page
1 The power cannot be turned on. 7-2
2 The fuse blows out. 7-2
3 When the output voltage fluctuates. 7-2
4 When buzz sound can be heard in the vicinity of power circuit. 7-2
5
+35V is not output. 7-2
6
VT+33V is not output.
7-3
7
INV+22V is not output.
7-3
8
DTV-ON+3.3V is not output.
7-3
9
DTV-ON+2.5V is not output.
7-3
10
PANEL+3.3V is not output.
7-3
11
DTV-ON+5V is not output.
7-4
12
AL+3.3V(D) is not output.
7-4
13
AL+1.2V(D) is not output.
7-4
14
AL+3.3V(A) is not output.
7-4
15
P-ON+5V(1) is not output.
7-5
16
+12V is not output.
7-5
17
P-ON+9V is not output.
7-5
18
DTV-ON+1.8V is not output. 7-5
19 The key operation is not functioning. 7-6
20
No operation is possible from the remote control unit.
7-6
21
Picture does not appear normally. (Tuner input (Analog) / Video input/S-Video input) 7-7
22
Picture does not appear normally. (Tuner input (Digital))
7-7
23
Picture does not appear normally. (Y / Pb / Pr input)
7-7
24
Audio is not outputted normally. (Tuner input) 7-8
25
Audio is not outputted normally. (Tuner input (Digital))
7-8
26
Audio is not outputted normally. (Audio input terminals)
7-9
NOTE: CBA AND PWB MEANS PRINTED WIRING BOARD.

Sharp LC-15AV7U Specifications

General

Brand	Sharp
Model	LC-15AV7U
Category	TV
Language	English