Sharp TU-45GAD, Service Manual

Page: 219 / 305

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 k
Ω
/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=k
Ω
=1000
Ω
, M=M
Ω
).
2. All resistors are ± 5%, unless otherwise noted.
(J= ± 5%, F= ± 1%, D= ± 0.5%)
3. All resistors are Carbon type, unless otherwise noted.
C
: Solid
W
: Cement
S
: Oxide Film
T
: Special
N
: Metal Coating
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
” ( )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.
D1 D2
SCHEMATIC DIAGRAM
CONTENTS
Page
DESCRIPTION OF SCHEMATIC DIAGRAM …………………………………………………… D2
AV Unit (AVC) ………………………………………………………………………………… D3 〜 D8
AV SUB Unit (AVC) ………………………………………………………………………… D9 〜 D12
TMDS_TX Unit (AVC) ………………………………………………………………………D13 〜 D18
AUDIO IF Unit (AVC) ………………………………………………………………………D19
〜
D20
FRONT Unit (AVC) …………………………………………………………………………D21 〜 D22
PC CARD Unit (AVC) ………………………………………………………………………D23
〜
D30
DVI Unit (AVC) ………………………………………………………………………………D31 〜 D34
MAIN Unit (AVC) ……………………………………………………………………………D35 〜 D62
DIGITAL Unit (AVC) ……………………………………………………………………… D63 〜 D104
POWER Unit (AVC) …………………………………………………………………… D105 〜 D116
DC/DC CONVERTER Unit (AVC) …………………………………………………… D117 〜 D118
TCON_TOP Unit (Display) …………………………………………………………… D119 〜 D136
TCON_BOTTOM Unit (Display) ……………………………………………………… D137 〜 D144
TMDS_RX Unit (Display) …………………………………………………………… D145 〜 D150
KEY Unit (Display) ……………………………………………………………………………… D151
R/C LED Unit (Display) ………………………………………………………………………… D152
LINEFILTER Unit (Display) …………………………………………………………… D153 〜 D154
POWER Unit (Display) ……………………………………………………………… D155 〜 D158
DC/DC CONVERTER Unit (Display) ………………………………………………… D159 〜 D162
CS POWER Unit (Display) …………………………………………………………… D163 〜 D164
INVERTER-1 Unit (Display) ………………………………………………………… D165 〜 D166
INVERTER-2 Unit (Display) ………………………………………………………… D167 〜 D168
INVERTER-3 Unit (Display) ………………………………………………………… D169
〜
D170
INVERTER-4 Unit (Display) ………………………………………………………… D171 〜 D172
MOTOR_CONT Unit (Display) ………………………………………………………………… D173
Models
TU-GD10U-T
(AVC)
TU-45GAD/T
(AVC)
M odels
LC-45GX6U/D/T
(Display)