Sharp LC-20SD4E (serv.man5) Service Manual ▷ View online
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
TR301
HF70T22*10*14
HF70T22*10*14
TR303
HF70T22*10*14
HF70T22*10*14
CD301
CU255401
CD303
CU262802
CU262802
IC302
LA42052-E
SOUND AMP
1
10
11
12
13
2
3
4
5
6
7
8
9
CP303
A2001WV2-6P
1
2
3
4
5
6
SPEAKER
SP302
42110PC14D4W-D1
SPEAKER
SP301
42110PC14D4-D1
4
3
2
1
CD302
CU143902
CU143902
D4202
1SS355
HS301
763WAA0353
HS16A
CP302
A2502WV2-4P
1
2
3
4
CD9001B
CH141504
1
2
3
4
B301
W4BRH3.5X6X1.0X2
CAUTION: DIGITAL TRANSISTOR
Q4233
KRA102SRTK
LED SW
Q4225
KRA102SRTK
LED SW
C307
1
50V
KA
C339
1000
25V
FM
C302
470
16V
YK
C303
100
16V
YK
C301
470
16V
YK
C314
4.7
50V
YK
C343
220
10V
YK
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
CP301
A2001WV2-5P
1
2
3
4
5
CAUTION: DIGITAL TRANSISTOR
Q4213
KRC102SRTK
KRC102SRTK
LED SW
Q4226
KRC102SRTK
KRC102SRTK
LED SW
Q301
KTC3875S_Y_RTK
MUTE SW.
R312
820
R4224
330
1/4W
R317
2.2K
R315
2.2K
R318
1.8K
R310
6.8K
R306
47K1/4W
R316
1K
R314
1K
R3212.2K
R320
1.8K
R319
2.2K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C4241
470P
CH
C4244
0.1
B
C316
0.0047 B
C315
0.0047
B
W890
W867
W868
W808
W817
C313
1
50V
KANP
C312
1
50V
KANP
SOUND_GND
SOUND+
AT+5V
P.CON+5V
GND
AUDIO_MUTE
STANDBY_LED
REMOCON_IN
EPG_ON_H
H-10
H-9
PCBD20
CMF088
CMF088
FROM/TO 21PIN
0
2.9
0
FROM/TO POWER
0
R_IN
R_OUT
L_OUT
L_IN
SP_GND
SP OUT R
SP OUT L
GND
GND
0
2.7
2.7
0
2.7
0
2.7
2.7
0
2.7
GND
GND
SP_AUDIO_OUT_L
SP_AUDIO_OUT_R
19
20
IN1
PRE GND
IN2
STBY
P.P
VCC
OUT2
PWR GND
Ripple Filter
NC
NC
OUT1
NC
NC
NC
NC
6.8
2.2
0
2.2
0
9.7
14.0
14.0
0
0
0
14.0
0
REMOCON IN
AT+5V
STANDBY LED
POWER ON LED
GND
GND
24
27
FROM/TO REMOCON
FROM/TO REMOCON
(CP4201)
(CP2201)
FROM/TO STEREO
(CD9001A)
FROM/TO AV SWITCH
SOUND AMP SCHEMATIC DIAGRAM
(AV PCB)
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
G
R
D2201
LTL-1BEFJ-002A
STANDBY/POWER
Vout
B+
GND
OS2201
ROM-V338TAO
1
2
3
TM101
PRMCGA481WJSA
BT001
R6P(AR)XICI
BT002
R6P(AR)XICI
SW2201
EVQ21505R
INPUT SELECT
SW2204
EVQ21505R
CH UP
SW2206
EVQ21505R
CH DOWN
SW2202
EVQ21505R
VOL DOWN
SW2203
EVQ21505R
VOL UP
SW2207
EVQ21505R
MENU
SW2205
SPPH120400
POWER SW
1
2
3
4
5
6
J4202
HSJ2630-010070
HEADPHONE JACK
1
2
3
4
5
6
7
CD3811
VM0311-VM0322_1.8M
TR302
HF70T22*10*14
CP2201
A2001WR2-6P
1
2
3
4
5
6
CD2203
CU241701
1
2
3
4
B4221
W4BRH3.5X6X1.0X2
B4222
W4BRH3.5X6X1.0X2
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
CP4201
A2001WR2-5P
A2001WR2-5P
1
2
3
4
5
CP4203
IMSA-9130S-05L
1
2
3
4
5
R2201
5.6K
1/4W
R2202
2.2K
1/4W
R2207
47
R2208
390
R2209
680
R2203
1.2K
1/4W
R2206
820 1/4W
R2205
3901/4W
R2204
3901/4W
R4226
150 1/2W
R4227
150 1/2W
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C2204
0.01
B
C2209
0.01
B
C4249
470P CH
C4258
470PCH
C2207
100
6.3V
KA
W857
H-12
H-11
POWER ON LED
STANDBY LED
AT+5V
REMOCON IN
GND
GND
R_IN
R_OUT
L_OUT
L_IN
SP_GND
KEY B
GND
Y_IN
S_SW
C_IN
GND
GND
KEY C
PCBDA0
CEF208
CEF220
PCBDQ0
KEY A
OPERATION/REMOCON/SAFETY 1 SWITCH SCHEMATIC DIAGRAM
CEF207
PCB270
FROM/TO SYNC SEPA
(CP202)
(CP301)
FROM/TO SOUND AMP
FROM/TO SOUND AMP
(CP303)
NC
NC
NC
FROM/TO 21PIN
(CP4202)
NC NC NC
(OPERATION PCB)
(REMOCON PCB)
(SAFETY 1 PCB)
ACCESSORY
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
F6701
SBL10CDL
F6700
SBL10CDL
F6703
SBL10CDL
F6704
SBL10CDL
F6702
SBL10CDL
JG6735
JG6727
JG6026
JG6737
JG6725
JG6722
JG6711
JG6712
JG6732
JG6027
JG6726
JG6738
JG6739
JG6740
JG6741
JG6742
JG6743
JG6723
JG6724
JG6720
JG6719
JG6721
JG6713
JG6714
JG6715
JG6716
JG6718
JG6717
JG6728
JG6710
JG6708
JG6709
JG6707
JG6701
JG6702
JG6703
JG6704
JG6705
JG6706
JG6729
JG6731
JG6730
JG6744
JG6734
JG6733
JG6736
Q6706
uPA606T
PROTECT
1
2
3
456
Q6713
uPA606T
PROTECT
1
2
3
456
Q6717
uPA606T
PROTECT
1
2
3
456
T6704
ETJV27ZJ18BC
ETJV27ZJ18BC
1
10
2
3
4
5
6
78
9
T6703
ETJV27ZJ18BC
ETJV27ZJ18BC
1
10
2
3
4
5
6
78
9
T6702
ETJV27ZJ18BC
ETJV27ZJ18BC
1
10
2
3
4
5
6
78
9
T6701
ETJV27ZJ18BC
ETJV27ZJ18BC
1
10
2
3
4
5
6
78
9
T6700
ETJV27ZJ18BC
ETJV27ZJ18BC
1
10
2
3
4
5
6
78
9
D6703
MA157A
1
2
3
D6704
MA157A
1
2
3
D6707
MA157A
MA157A
1
2
3
D6708
MA157A
1
2
3
D6710
MA157A
1
2
3
CP6700
1747386-1
1
2
CP6701
1747386-1
1
2
CP6702
1747386-1
1
2
CP6703
1747386-1
1
2
CP6705
1747386-1
1
2
Q6709
KTA1504S_Y_RTK
INV.SW
Q6705
KTA1504S_Y_RTK
INV.SW
Q6702
KTA1504S_Y_RTK
INV.SW
Q6712
KTA1504S_Y_RTK
INV.SW
Q6716
KTA1504S_Y_RTK
INV.SW
L6700
100uH
L6703
100uH
L6701
100uH
L6702
100uH
L6704
100uH
CP6704
127301113K2
1
10
11
12
13
2
3
4
5
6
7
8
9
D6701
DAN202K
1
2
3
D6702
DAN202K
1
2
3
D6705
DAN202K
1
2
3
D6709
DAN202K
1
2
3
D6700
DAN202K
1
2
3
D6711
DAN202K
1
2
3
C6716
820
25V
ZLH
C6721
820
25V
ZLH
C6709
820
25V
ZLH
C6704
820
25V
ZLH
C6728
820
25V
ZLH
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
Q6707
2SC5886A
INV.SW
Q6708
2SC5886A
INV.SW
Q6703
2SC5886A
INV.SW
Q6704
2SC5886A
INV.SW
Q6701
2SC5886A
INV.SW
Q6700
2SC5886A
INV.SW
Q6710
2SC5886A
INV.SW
Q6711
2SC5886A
INV.SW
Q6714
2SC5886A
INV.SE
Q6715
2SC5886A
INV.SW
R6714
1.8K 1/4W R6715
1.2K 1/4W
R6746
560
1/4W
R6716
5.6K
R6717
33K
R6720
5.6K
R6721
33K
R6727
5.6K
1/4W
R6730
5.6K
R6731
33K
R6712
5.6K
R6745
560
1/4W
R6706
5.6K
R6704
1.8K 1/4W
R6705
1.2K 1/4W
R6700
1.8K 1/4W
R6702
5.6K
R6744
560
1/4W
R6735
33K
R6703
39K
R6713
5.6K
R6701
1.2K 1/4W
R6710
470
R6711
820K
R6708
470
R6709
820K
R6743
56K
R6707
33K
R6722
470
R6723
820K
R6749
33K
1/4W
R6718
1.8K 1/4W
R6724
470
R6719
1.2K 1/4W
R6747
560
1/4W
R6725
820K
R6726
5.6K 1/4W
R6732
470
R6748
560
1/4W
R6729
1.2K 1/4W
R6728
1.8K 1/4W
R6733
820K
R6734
5.6K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C6742
0.033
B
C6752
0.1
B
C6715
0.1
B
C6712
0.068
250V
MPS
C6753
0.1
B
C6720
0.1
B
C6754
0.1
B
C6727
0.1
B
C6741
0.033
B
C6750
0.1
B
C6703
0.1
B
C6740
0.033
B
C6708
0.1
B
C6751
0.1
B
C6700
0.068
250V
MPS
C6705
0.068
250V
MPS
C6738
1B
C6729
1B
C6717
0.068
250V
MPS
C6722
1B
C6743
0.033
B
C6723
1B
C6724
0.068
250V
MPS
C6744
0.033
B
C6739
1B
H-14
H-13
TO LCD PANEL
TO LCD PANEL
NC
INVERTER SCHEMATIC DIAGRAM
DUNTKD282WE
CEF205
PCB350
HV
HV
HV
HV
HV
HV
HV
HV
HV
HV
2.1
1300
1300
0
3.5
3.4
3.4
3.5
3.5
3.5
2.0
1300
1300
0
3.5
3.4
3.4
3.5
3.5
3.5
2.1
1300
1300
0
3.5
3.4
3.4
3.5
3.5
3.5
2.1
1300
1300
0
3.5
3.4
3.4
3.5
3.5
3.5
3.5
3.5
3.5
3.5
2.1
1300
1300
0
3.4
3.4
3.4
0
3.5
5.6
0
3.5
3.5
3.6
3.9
3.4
0
3.5
3.5
3.5
0
3.5
3.9
3.6
0
7.8
3.6
0
8.5
3.6
3.5
3.9
3.6
3.5
0
3.5
0
3.5
3.4
GND
LMP_ERR
+3.3V
OFL2
OFL1
INV_+B
INV_+B
INV_+B
INV_+B
INV_GND
INV_GND
INV_GND
INV_GND
3.4
0
3.5
3.5
0
3.5
3.5
3.6
3.9
3.6
8.5
0
3.6
7.8
0
3.4
3.5
0
3.5
3.5
0
3.5
3.9
3.6
3.6
0
0
0
7.8
0
(CP504)
FROM/TO POWER
NC
NC
NC
NC
NC
NC
NC
NC
TO LCD PANEL
TO LCD PANEL
TO LCD PANEL
(BACKLIGHT PCB)
NC
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
TU001
TAUV-W620D
1
10
11
12
13
14
15
16
3
4
5
2
6
7
8
9
TR003
HF70T22*10*14
HF70T22*10*14
CD003
CUH30001
CUH30001
CP001
IMSA-9130B-13-PT1
1
10
11
12
13
2
3
4
5
6
7
8
9
CP002
IMSA-9130S-13L
1
10
11
12
13
2
3
4
5
6
7
8
9
B002
FCM1608KF-601T02
B001
FCM1608KF-601T02
C005
100
6.3V
YK
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
R001
100
R002
10 1/4W
R003
100 1/4W
R015
100
R014
100 1/4W
R017
100
R011
100
R018
100
R012
100
R016
100 1/4W
R013
100 1/4W
R007
100
R019
100
1/4W
R010
560K
R009
82K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C002
100P
CH
C012
0.001
B
C001
100P CH
C007
220P
CH
C011
47P
CH
C015
47P
CH
C003
1000
6.3V
YK
W908
W910
W909
SIF
TUNER_A_MONO_IN
TU_VIDEO_OUT
TUNER_A_MONO_IN
RF_AGC
AFT
SDA
SCL
TU_VIDEO_OUT
GND
TU+32V
P.CON+5V_DTV
H-16
H-15
(CP001)
(CP002)
PCBD20
CMF088
CMF088
PCB290
CEF206
CEF206
5.1
5.1
2.4
1.4
1.2
1.7
0
SCL
SIF_OUT
AFT
GND
TUNING
+B
SDA
AS(GND)
N.C
RF_AGC
AUDIO_OUT
VIDEO_OUT
0
31.9
2.5
1.7
0
RF_AGC
SCL
SDA
GND
VIDEO_OUT
AFT
SIF_OUT
AUDIO_OUT
GND
+32V
P.CON+5V
GND
GND
FROM/TO AV SWITCH
FROM/TO POWER
FROM/TO STEREO
FROM/TO 21PIN
GND
AFT
SIF_OUT
AUDIO_OUT
GND
SDA
SCL
RF_AGC
GND
GND
+32V
P.CON+5V
VIDEO_OUT
(AV PCB)
(TUNER PCB)
28
TUNER SCHEMATIC DIAGRAM
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