Sharp LC-37GA4E (serv.man2) Service Manual ▷ View online
21
LC-32GA4E
LC-37GA4E
LC-37GA4E
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
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.
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 “
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.
1. All capacitors are mF, unless otherwise noted.
(P=pF=mmF).
2. All capacitors are Ceramic type, unless otherwise
noted.
(ML) : Mylar
(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.
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.
THE SET. BE SURE TO REPLACE THESE PARTS
WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
23
LC-32GA4E
LC-37GA4E
LC-37GA4E
22
LC-32GA4E
LC-37GA4E
LC-37GA4E
Ë
LCD CONTROL Unit (LC-32GA4E)
SCHEMATIC DIAGRAM
8
7
10
9
6
5
4
3
2
1
A
B
C
D
E
F
G
H
17
16
19
18
15
14
13
12
11
25
LC-32GA4E
LC-37GA4E
LC-37GA4E
24
LC-32GA4E
LC-37GA4E
LC-37GA4E
Ë
LCD CONTROL Unit (LC-37GA4E)
SCHEMATIC DIAGRAM
8
7
10
9
6
5
4
3
2
1
A
B
C
D
E
F
G
H
17
16
19
18
15
14
13
12
11
26
LC-32GA4E
LC-37GA4E
LC-37GA4E
Ref. No.
Part No.
★
Description
Code
Ref. No.
Part No.
★
Description
Code
PARTS LIST
PARTS REPLACEMENT
Replacement parts which have these special safety characteristics
identified in this manual; electrical components having such features
are identified by
identified in this manual; electrical components having such features
are identified by
å
and shaded areas in the Replacement Parts Lists
and Schematic Diagrams. The use of a substitute replacement part
which dose no have the same safety characteristic as the factory
recommended replacement parts shown in this service manual may
create shock, fire or other hazards.
which dose no have the same safety characteristic as the factory
recommended replacement parts shown in this service manual may
create shock, fire or other hazards.
"HOW TO ORDER REPLACEMENT PARTS"
To have your order filled promptly and correctly, please furnish the
following informations.
following informations.
1. MODEL NUMBER
2. REF. NO.
3. PART NO.
4. DESCRIPTION
★
MARK: SPARE PARTS-DELIVERY SECTION
PRINTED WIRING BOARD ASSEMBLIES
(NOT REPLACEMENT ITEM)
LC-32GA4E
DUNTKC268VJ90
J LCD CONTROL Unit
CH
DUNTKC427VJ21
– CPU Unit
—
DUNTKC585VJ16
J MAIN Unit (LC-32GA4E)
CR
DUNTKC585VJ17
J MAIN Unit (LC-32GA4K)
CR
DUNTKC585VJ18
J MAIN Unit (LC-32GA4F)
DUNTKC585VJ37
J MAIN Unit (LC-32GA4I)
DUNTKC585VJ38
J MAIN Unit (LC-32GA4R)
DUNTKC595VJ18
– DVI Unit
—
DUNTKC642UJ04
– AV Unit (LC-32GA4E/I/R)
—
DUNTKC642UJ05
– AV Unit (LC-32GA4K)
—
DUNTKC642UJ06
– AV Unit (LC-32GA4F)
—
DUNTKC643UJ04
– KEY Unit (LC-32GA4E/I/R)
—
DUNTKC643UJ05
– KEY Unit (LC-32GA4K)
—
DUNTKC643UJ06
– KEY Unit (LC-32GA4F)
—
DUNTKC644UJ04
– R/C LED Unit
—
(LC-32GA4E/I/R)
DUNTKC644UJ05
– R/C LED Unit (LC-32GA4K) —
DUNTKC644UJ06
– R/C LED Unit (LC-32GA4F) —
DUNTKC645UJ04
– EXT SP TERMINAL Unit
—
(LC-32GA4E/I/R)
DUNTKC645UJ05
– EXT SP TERMINAL Unit
—
(LC-32GA4K)
DUNTKC645UJ06
– EXT SP TERMINAL Unit
—
(LC-32GA4F)
DUNTKC646UJ04
– FRONT Unit
—
(LC-32GA4E/I/R)
DUNTKC646UJ05
– FRONT Unit (LC-32GA4K)
—
DUNTKC646UJ06
– FRONT Unit (LC-32GA4F)
—
RDENCA068WJZZ
– POWER Unit
—
RUNTKA069WJZZ
– INVERTER-A Unit
—
RUNTKA070WJZZ
– INVERTER-B Unit
—
RUNTKA071WJZZ
– INVERTER-A-GND Unit
—
RUNTKA072WJZZ
– INVERTER-B-GND Unit
—
B2SX4102BT
J 1-Bit Amplifier Unit
BL
LC-37GA4E
DUNTKC268VJ92
J LCD CONTROL Unit
CH
DUNTKC427VJ21
– CPU Unit
—
DUNTKC585VJ24
J MAIN Unit (LC-37GA4E)
CR
DUNTKC585VJ25
J MAIN Unit (LC-37GA4K)
CR
DUNTKC585VJ26
J MAIN Unit (LC-37GA4F)
DUNTKC585VJ42
J MAIN Unit (LC-37GA4I)
DUNTKC585VJ43
J MAIN Unit (LC-37GA4R)
DUNTKC595VJ20
– DVI Unit
—
DUNTKC642UJ11
– AV Unit (LC-37GA4E/I/R)
—
DUNTKC642UJ12
– AV Unit (LC-37GA4K)
—
DUNTKC642UJ13
– AV Unit (LC-37GA4F)
—
DUNTKC643UJ11
– KEY Unit (LC-37GA4E/I/R)
—
DUNTKC643UJ12
– KEY Unit (LC-37GA4K)
—
DUNTKC643UJ13
– KEY Unit (LC-37GA4F)
—
DUNTKC644UJ11
– R/C LED Unit
—
(LC-37GA4E/I/R)
DUNTKC644UJ12
– R/C LED Unit (LC-37GA4K) —
DUNTKC644UJ13
– R/C LED Unit (LC-37GA4F) —
DUNTKC645UJ11
– EXT SP TERMINAL Unit
—
(LC-37GA4E/I/R)
DUNTKC645UJ12
– EXT SP TERMINAL Unit
—
(LC-37GA4K)
DUNTKC645UJ13
– EXT SP TERMINAL Unit
—
(LC-37GA4F)
DUNTKC646UJ11
– FRONT Unit
—
(LC-37GA4E/I/R)
DUNTKC646UJ12
– FRONT Unit (LC-37GA4K)
—
DUNTKC646UJ13
– FRONT Unit (LC-37GA4F)
—
RDENCA068WJZZ
– POWER Unit
—
RUNTKA080WJZZ
– INVERTER-A Unit
—
RUNTKA081WJZZ
– INVERTER-B Unit
—
RUNTKA082WJZZ
– INVERTER-A-GND Unit
—
RUNTKA083WJZZ
– INVERTER-B-GND Unit
—
B2SX4102BT
J 1-Bit Amplifier Unit
BL
LCD PANEL
NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN
ASSEMBLY BUT NOT INDEPENDENTLY.
RLCDTA028WJZZ
32" Wide LCD Panel Unit
ER
(LC-32GA4E/K/F/I/R)
(LK315T3FZA0)
(LK315T3FZA0)
RLCDTA027WJZZ
37" Wide LCD Panel Unit
FS
(LC-37GA4E/K/F/I/R)
(LK370T3FZA0)
(LK370T3FZA0)
DUNTKC268VJ90 (LC-32GA4E)
DUNTKC268VJ92 (LC-37GA4E)
DUNTKC268VJ92 (LC-37GA4E)
LCD CONTROL UNIT
RESISTORS
R2029
VRS-CY1JF223JY
J 22k 1/16W
Metal Oxide
AA
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