Schematic Diagram - Sharp LC-26GA3E Service Manual

SCHEMATIC DIAGRAM

LC-26GA3E
Model
CONTENTS
DESCRIPTION OF SCHEMATIC DIAGRAM ............................................................ D2
AV Unit ................................................................................................... D3 ~ D12
KEY Unit ......................................................................................................... D13
R/C LED Unit ................................................................................................... D14
LCD CONTROL Unit .................................................................................D15 ~ D30
CPU Unit ................................................................................................D31 ~ D40
MAIN Unit ................................................................................................D41 ~ D68
DVI Unit ...................................................................................................D69 ~ D72
POWER Unit .............................................................................................D73 ~ D74
INVERTER Unit .......................................................................................D75 ~ D76
INVERTER GROUND Unit ...........................................................................D77 ~ D78
EXT SP TERMINAL Unit ....................................................................................... D79
D1
Page
DESCRIPTION OF SCHEMATIC DIAGRAM
VOLTAGE MEASUREMENT CONDITION:
1. When the exclusive-use AC adapter is used, the colour
bar signal of colour bar generator for service is input to
get the normal screen. When the audio is minimized,
the voltage value is measured with the 20 kΩ/V tester.
WAVEFORM MEASUREMENT CONDITION:
1. When the exclusive-use AC adapter is used, the colour
density, lightness and colour hue are set to the center
position, and the signal of colour bar generator for
service is observed to get waveform.
INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1. The unit of resistance "Ω" is omitted.
(K=kΩ=1000 Ω, M=MΩ).
2. All resistors are ± 5%, unless otherwise noted.
(J= ± 5%, F= ± 1%, D= ± 0.5%)
3. All resistors are Carbon type, unless otherwise noted.
: Solid : Cement
C W
: Oxide Film : Special
S T
: Metal Coating
N
CAPACITOR
1. All capacitors are mF, unless otherwise noted.
(P=pF=mmF).
2. All capacitors are Ceramic type, unless otherwise
noted.
(ML) : Mylar (TA) : Tantalum
(PF) : Polypro Film (ST) : Styrol
CAUTION:
This circuit diagram is original one, therefore there may be a
slight difference from yours.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "å" (
IMPORTANT FOR MAINTAINING THE SAFETY OF
THE SET. BE SURE TO REPLACE THESE PARTS
WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
D2
)ARE