Sharp AQUOS LC-26GA5H, Service Manual

Page: 127 / 167

DESCRIPTION OF SCHEMATIC DIAGRAM
VOLTAGE MEASUREMENT CONDITION:
INDICATION OF RESISTOR & CAPACITOR:
The voltages at test points are measured on
exclusive AC adaptor and the stable supply
voltage of AC 120V. Signals are fed by a color bar
signal generator for servicing purpose and the
above voltages are measured with a 20k ohm/V
tester. 1.
RESISTOR
1. The unit of resistance "
Ω
" is omitted.
(K=k
Ω
=1000
Ω
, M=M
Ω
).
2. All resistors are ± 5%, unless otherwise noted.
(K= ± 10%, F= ± 1%, D= ± 0.5%)
1. All capacitors are
µ
F, unless otherwise noted.
(P=pF=
µµ
F).
2. All capacitors are 50V, unless otherwise noted.
3. All resistors are 1/16W, unless otherwise noted.
CAPACITOR
This circuit diagram is original one, therefore there may be a
slight difference from yours.
CAUTION:
SAFETY NOTES:
DISCONNECT THE AC PLUG FROM THE AC
OUTLET BEFORE REPLACING PARTS. 1.
SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING. 2.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH " " ( ) ARE
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.
AVIS DE SECURITE IMPORTANT:
LES PIECES MARQUEES " " ( ) SONT
IMPORTANTES POUR MAINTENIR LA SECURITE
DE L'APPAREIL.
NE REMPLACER CES PIEDES QUE PAR DES
PIECES DONT LE NUMERO EST SPECIFIE POUR
MAINTENIR LA SECURITE ET PROTEGER LE
BON FONCTIONNEMENT DE L'APPAREIL.
D1 D2
SCHEMATIC DIAGRAM
CONTENTS
Page
DESCRIPTION OF SCHEMATIC DIAGRAM …………………………………………………… D2
AV Unit ……………………………………………………………………………………… D3 〜 D18
KEY Unit ……………………………………………………………………………………D19 〜 D20
CPU Unit ……………………………………………………………………………………D21 〜 D30
LCD CONTROL Unit ………………………………………………………………………D31 〜 D44
MAIN Unit ……………………………………………………………………………………D45 〜 D72
POWER Unit …………………………………………………………………………………D73 〜 D76
INVERTER Unit ……………………………………………………………………………D77 〜 D78
INVERTER GROUND Unit …………………………………………………………………D79 〜 D80
R/C, LED Unit ……………………………………………………………………………………… D81
Models
LC-26GA5M/H/X