DOWNLOAD Sharp LC-20C2E (serv.man9) Service Manual ↓ Size: 4.06 MB | Pages: 55 in PDF or view online for FREE

Model
LC-20C2E (serv.man9)
Pages
55
Size
4.06 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-20c2e-sm9.pdf
Date

Sharp LC-20C2E (serv.man9) Service Manual ▷ View online

27
LC-20C2E
26
LC-20C2E
Ë
TUNER BLOCK DIAGRAM
I
2
C    bus
AV1
INPUT/
OUTPUT
TUNER
INPUT
AV
OUTPUT
AV1
INPUT/
OUTPUT
ANT
INPUT
AV
OUTPUT
SCL, SDA
H
V
R_VPC, G_ VPC, B_VPC
SUBCLK
SUBIN
SUBOUT
M/S IN
M/S OUT
V OUT VPC
SC1 OUT L/R MSP
V IN3 VPC
SC2 IN L/R MSP
V IN2 VPC
AN IN1 MSP
SC2 OUT L/R MSP
SC902
I
2
C
I
2
C
I
2
C
OSD
SC802
DC 13V
P904
ANALOG SWITCH
I4
MICON
I9
ANALOG SWITCH
I13
R_OSD, G_OSD, B_OSD
H
V
TUNER
W7, W14
SOUND(L/R)
RF
AV1 SOUND(L/R)
AV1 PICTURE
R_SCART, G_SCART, B_SCART
AV1 SOUND OUTPUT(L/R)
AV1 PICTURE OUTPUT
SCL, SDA
I
2
C
I
2
C
E
2
PROM
I2
ROM
I3
MEMORY
I6
DC JACK
J3702
SC903
J902
J903
28
LC-20C2E
MEMO
29
LC-20C2E
DESCRIPTION OF SCHEMATIC DIAGRAM
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
/V tester.
2. 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.
The wave form test point is indicated with the mark
(
) in the wiring diagram.
3. Indication of resistors and capacitors
[Resistors]
Unit
: Nonindication …
, K…k
,
M … M
Error : Nonindication …
±
5%
F …
±
1%
D …
±
0.5%
[Capacitor]
Unit
: Nonindication or 
µ
µ
F,
P or p … pF
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH  "
å
"( 
  )
 ARE
INPORTANT FOR MAINTAINING THE SAFETY OF
THE SET.
BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FORMAINTAINING THE SAFETY
AND PERFORMANCE OF THE SET.
CAUTION:
This circuit diagram is original one, therefore there
may be a slight difference from yours.
Resistors
Nonindication
Carbon-film resistor
C
Solid resistor
S
Metal-oxide-film resistor
N
Metal-film resistor
W
Cement resistor
T
Special resistor
Capacitors
Nonndication
Ceramic capacitor
ML
Mylar capacitor
PF
Polypropylene
film capacitor
TA
Tantalum capacitor
Styrol capacitor
[Item]
31
LC-20C2E
30
LC-20C2E
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
I
J
10
11
12
13
14
15
16
17
18
19
OVERALL SCHEMATIC DIAGRAM
MAIN PWB
VIDEO PWB
INVERTER A
 PWB
INVERTER B PWB
SWITCH PWB
S-OUT PWB
TUNER PWB
RUNTK0704CEZZ
LCD SOURCE
LCD GATE
BACK LIGHT
Page of 55
Display

Click on the first or last page to see other LC-20C2E (serv.man9) service manuals if exist.