DOWNLOAD Sharp 37GQ-20 (serv.man3) Service Manual ↓ Size: 1.33 MB | Pages: 28 in PDF or view online for FREE

Model
37GQ-20 (serv.man3)
Pages
28
Size
1.33 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / (including circuit diagram and parts listing) for the version 02 chassis
File
37gq-20-sm3.pdf
Date
PREV: Sharp 37GQ-20 (serv.man2) Service Manual

Sharp 37GQ-20 (serv.man3) Service Manual ▷ View online

21
37GQ-20H
1.6
1
1.4
1.3
1.2
1.5
2
REF No PARTS
DESCRIPTION
* CODE
R  1028 VRD-RA2BE101J
RES  100 OHM  5%  1/8W
S AA
R  1029 VRD-RA2BE101J
RES  100 OHM  5%  1/8W
S AA
R  1030 VRS-TV1JD101J
2125 100 OHM 5% 1/10W SMD
S AA
R  1031 VRS-TV1JD101J
2125 100 OHM 5% 1/10W SMD
S AA
R  1032 VRS-TV1JD393J
2125  39KOHM 5% 1/10W SMD
S AA
R  1033 VRS-TV1JD472J
2125 4.7KOHM 5% 1/10W SMD
S AA
R  1034 VRS-TV1JD154J
2125 150KOHM 5% 1/10W SMD
S AA
MISCELLANEOUS PARTS
F  0701 QFS-C3226CEZZ
FUSE T3.15AH 250V
S AE
F  0701 QFSHD1001BMZZ
FUSE HOLD.EYF52BC=PANASON
S AA
F  0701 QFSHD1002BMZZ
FUSE HOLD.EYF52BC=PANASON
S AA
FB 0301 RBLN-0037CEZZ
BALUN FBA04HA90088-00 T/Y
S AA
FB 0701 RBLN-0020CEZZ
BALUNE
S AB
FB 0702 RBLN-0037CEZZ
BALUN FBA04HA90088-00 T/Y
S AA
F  0401 RBLN-0037CEZZ
BALUN FBA04HA90088-00 T/Y
S AA
(H)
QCNW-2834BMZZ
WIRE (H) 14"
S AD
(K)
QCNW-2835BMZZ
WIRE (K) 14"
S AE
A  0000 QPLGN0304CEZZ
PLUG
S AB
F  0000 QPLGN0505CEZZ
PLUG
S AB
G  0000 QPLGN0207CEZZ
PLUG
S AA
J  0019 VRS-TV1JD332J
2125 3.3KOHM 5% 1/10W SMD
S AA
J  0054 VRS-TV1JD000J
2125   0 OHM 5% 1/10W SMD
S AA
J  0056VRS-TQ2BD000J
3216
    0 OHM 5% 1/8W SMD
S AA
J  0061 VRS-TV1JD000J
2125   0 OHM 5% 1/10W SMD
S AA
J  0062 VRS-TV1JD000J
2125   0 OHM 5% 1/10W SMD
S AA
J  0067 RC-FZ4105BMNJ
POL FILM C   1MF 50V 5% ECQ-V
AE
JF 0016VRS-TV1JD000J
2125   0 OHM 5% 1/10W SMD
S AA
JF 0017 VRS-TV1JD000J
2125   0 OHM 5% 1/10W SMD
S AA
JF 0018 VRS-TV1JD000J
2125   0 OHM 5% 1/10W SMD
S AA
JL 0005 QCNW-3055BMZZ
WIRE BETWEEN GNDS CA-1
S AB
RMC0001 RRMCU0222CEZZ
R/C RECEIVER
S AG
S  0000 QPLGN0241CEZZ
PLUG
S AA
S  0701 QSW-P0588CEZZ
SWITCH ESB91632A-V
S AM
S  1001 QSW-K0079GEZZ
TACTILE SWITCH
S AA
S  1002 QSW-K0079GEZZ
TACTILE SWITCH
S AA
S  1003 QSW-K0079GEZZ
TACTILE SWITCH
S AA
S  1004 QSW-K0079GEZZ
TACTILE SWITCH
S AA
SC 0401 QSOCZ2107BMZZ
SOCKET
S AE
PWB-B
SOCKET UNIT
TRANSISTORS
Q  0870 RH-TX0181BMZZ
TRT BF422 TOSHIBA
S AB
Q  0871 RH-TX0181BMZZ
TRT BF422 TOSHIBA
S AB
Q  0872 RH-TX0181BMZZ
TRT BF422 TOSHIBA
S AB
Q  0883 RH-TX0180BMZZ
TRT BF421 TOSHIBA
S AB
Q  0885 RH-TX0180BMZZ
TRT BF421 TOSHIBA
S AB
Q  0887 RH-TX0180BMZZ
TRT BF421 TOSHIBA
S AB
DIODES
D  0811 RH-DX0551BMZZ
DIODE LL4148 TFK SMD
S AA
D  0812 RH-DX0551BMZZ
DIODE LL4148 TFK SMD
S AA
D  0860 RH-DX0551BMZZ
DIODE LL4148 TFK SMD
S AA
D  0861 RH-DX0551BMZZ
DIODE LL4148 TFK SMD
S AA
D  0862 RH-DX0551BMZZ
DIODE LL4148 TFK SMD
S AA
COILS
L  0861 VP-CF120K0000
PEAK  COIL  12UH 10%
S AC
CAPACITORS
C  0860 VCCCTV1HH471J
CERAM C 470PF 50V 2125SMD
S AA
C  0861 VCCCTV1HH471J
CERAM C 470PF 50V 2125SMD
S AA
C  0862 VCCCTV1HH471J
CERAM C 470PF 50V 2125SMD
S AA
C  0871 VCCCTV1HH471J
CERAM C 470PF 50V 2125SMD
S AA
C  0872 VCCCTV1HH471J
CERAM C 470PF 50V 2125SMD
S AA
C  0873 VCCCTV1HH471J
CERAM C 470PF 50V 2125SMD
S AA
C  0874 VCKYPA2HB102K
CERAM C   1NF 10% 500V
S AA
C  0876VCKYPB3DE472Z
C DE1110-1E472Z2K MURATA
S AC
!
!
REF No PARTS
DESCRIPTION
* CODE
C  0878 VCEAGA2DW106M
ELEC C   10UF 20% 200V
S AC
C  0879 VCCCPA1HH101J
C CAPACITOR
S AA
RESISTORS
R  0862 VRS-PU3DB153J
MET OX RES  15 KOHM 5% 2W
S AC
R  0864 VRS-PU3DB153J
MET OX RES  15 KOHM 5% 2W
S AC
R  0866 VRS-PU3DB153J
MET OX RES  15 KOHM 5% 2W
S AC
R  0879 VRS-TV1JD471J
2125 470 OHM 5% 1/10W SMD
S AA
R  0880 VRS-TV1JD471J
2125 470 OHM 5% 1/10W SMD
S AA
R  0881 VRS-TV1JD471J
2125 470 OHM 5% 1/10W SMD
S AA
R  0883 VRD-RA2HD272J
RES  2,7KOHM  5%  1/2W
S AA
R  0885 VRD-RA2HD272J
RES  2,7KOHM  5%  1/2W
S AA
R  0887 VRD-RA2HD272J
RES  2,7KOHM  5%  1/2W
S AA
R  0888 VRS-TV1JD471J
2125 470 OHM 5% 1/10W SMD
S AA
R  0892 VRS-TV1JD102J
2125   1KOHM 5% 1/10W SMD
S AA
R  0893 VRS-TV1JD102J
2125   1KOHM 5% 1/10W SMD
S AA
R  0894 VRS-TV1JD102J
2125   1KOHM 5% 1/10W SMD
S AA
R  0898 VRS-TV1JD471J
2125 470 OHM 5% 1/10W SMD
S AA
R  0899 VRS-TV1JD471J
2125 470 OHM 5% 1/10W SMD
S AA
MISCELLANEOUS PARTS
SC 0881 QSOCV0842CEZZ
CRT SOCKET
S AG
L  0003 QTIPM0017CEFM
TIP
S AA
MISCELLANEOUS PARTS
CACCB5007BMV0
A.C CORD
S AU
VSP0080PBL6YS
SPEAKER 2.0W 32 OHM DAIWA
S AH
TINS-6825BMN0
OWNERS MANUAL 37GQ20H
S AC
TINS-6833BMN0
QUICK GUIDE (ENGLISH)
S AA
RRMCG1059BMSA
REMOTE CONTROL UNIT
S AS
QANTL0001BMZZ
LOOP ANTENNA ELDOR
S AM
CABINET PARTS
1
CCABA1284BMV0
CABINET SET 37GQ20SDE
S AX
1.2
HBDGB1017BMSB
SHARP BADGE(37EM-24S)
S AC
1.3
HDECQ0036BMSA
R/C DECORATION
S AB
1.4
HDECQ0035BMSA
LED DECORATION
S AB
1.5
JBTN-1047BMSA
UP/DOWN BUTTON(37EM-24S)
S AD
1.6JBTN-1046
BMSA
POWER BUTTON(37EM-24S)
S AB
2
GCABB1107BMKA
REAR CAB. 37GQ-20S
S AU
!
!
!
22
37GQ-20H
TROUBLESHOOTING TABLES.
NO PICTURE
NO
Check Q1001, 
IC1001, IC1003
Check the tuner supply 
and band biases. Both
 must be approx. 5V DC
Normal
YES
Is tuning voltage 
normal at  
Pin (2) of Tuner? 
Check Picture 
setting by R/C. Signal 
should be received.
-Check the AGC Voltage:
 Pin (1) of Tuner.
-Check the SAW Filter: SF201
23
37GQ-20H
NO SOUND
Check Sound setting by
R/C. Signal should be
received.
NO
YES
Check D707, C710
NO
Is
Audio Amplifier
muted?
Check R304, Q301, Q302
NO
Check IC801, C301
YES
YES
Check IC1001, Q305
Does 
Sound Signal
 appear at Pin(6) 
of IC801?
Does 
approx. 20V DC 
appear on 
C710?
24
37GQ-20H
NO RASTER
Check F701
Normal
Fuse Blown
Normal
Replace Fuse
Fuse Blown
 again
Check IC701
Normal
Abnormal
Check Q601, 
C711
Check D708, D717
Normal
Check R705, R706,
R715, D706
Normal
Check CRT connector
K1... K5 bias
Normal
Abnormal
Check C878
Check IC801
Check Q601, C711
Check Voltage on C705
(Approx. 325V DC)
Check D701, D702, D703,
D704, C705.
Check Voltage on C711
(Approx. 105V DC)
Approx. 0V
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