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LC-15AV7U
Sharp LC-15AV7U User Manual
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6-1
A7121INT
1
.
To enter the service mode, press [MENU] and
[POWER] buttons on the TV unit simultaneously in
the standby mode.
2.
To initialize the LCD television, press [DISPLAY]
button on the remote control unit.
3.
Confirm "FF" indication on the upper right of the
screen.
HO
W T
O
INITIALIZE THE
LCD TELEVISION
18
20
Table of Contents
Service Manual
1
Table of Contents
1
Specifications
2
Important Safeguards and Precautions
4
Important Service Safety Precaution
6
Standard Notes for Servicing
8
Instructions for Handling Semi-Conductors
11
Cabinet Disassembly Instructions
12
Electrical Adjustment Instructions
16
White Balance Adjustment
17
How to Initialize the Lcd Television
19
Troubleshooting
20
Flow Chart No.1
21
The Power Cannot be Turned on
21
The Fuse Blows out
21
When the Output Voltage Fluctuates
21
When Buzz Sound Can be Heard in the Vicinity of Power Circuit
21
+35V Is Not Output
21
VT+33V Is Not Output
22
INV+22V Is Not Output
22
DTV-ON+3.3V Is Not Output
22
DTV-ON+2.5V Is Not Output
22
PANEL+3.3V Is Not Output
22
AL+1.2V(D) Is Not Output
23
AL+3.3V(A) Is Not Output
23
AL+3.3V(D) Is Not Output
23
DTV-ON+5V Is Not Output
23
+12V Is Not Output
24
DTV-ON+1.8V Is Not Output
24
P-ON+5V(1) Is Not Output
24
P-ON+9V Is Not Output
24
No Operation Is Possible from the Remote Control Unit
25
The Key Operation Is Not Functioning
25
Picture Does Not Appear Normally. (Tuner Input (Analog)/ Video Input/S-Video Input)
26
Picture Does Not Appear Normally. (Tuner Input (Digital))
26
Picture Does Not Appear Normally. (y / Pb / Pr Input)
26
Audio Is Not Outputted Normally. (Tuner Input (Digital))
27
Audio Is Not Outputted Normally. (Tuner Input)
27
Audio Is Not Outputted Normally. (Audio Input Terminals)
28
Block Diagrams
29
Schematic Diagrams/ Cba's and Test Points
36
Waveforms
51
Wiring Diagram
52
IC Pin Function Descriptions
53
Exploded Views
57
Mechanical Parts List
59
Electrical Parts List
61
Printed Wiring Board Assemblies
61
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Sharp LC-15AV7U Specifications
General
Brand
Sharp
Model
LC-15AV7U
Category
TV
Language
English
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