Sharp 21HT-15 (serv.man8) Service Manual ▷ View online
33
21HT-15H
TROUBLESHOOTING TABLES.
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED:
Sync. Separator Circuit.
Check pin33 and 34
of IC801.
DEFECTIVE VERTICEL AMP.
AND VERTICAL LINEARITY
Readjusted vertical size.
(Bass Data)
Vertical linearity and size
is abnormal.
Check R502,R505
NO VERTICAL SCAN
Check IC501 bias.
Normal
Abnormal
Check C502 and C514.
Check IC501.
NO SPECIFIC COLOUR
NO
YES
Is some colour produced in
B/W broadcast reception?
Check IC801,R801,R802,
YES
Is the white balance
R803,D804,D805,D806
properly adjusted?
and Q801.
NO
Readjusted the white
balance.
The picture colour is cyan.
The picture colour is magenta.
The picture colour is yellow.
Check Q870,Q885 and
Check Q871,Q883 and
Check Q872,Q887 and
their adjacent circuits.
their adjacent circuits.
their adjacent circuits.
34
21HT-15H
TROUBLESHOOTING TABLES.
NO PICTURE, NO SOUND
CIRCUITS TO BE CHECKED:
Tuner.
PIF.
PIF.
Does the noise level increase at max.
Automatic Gain Control.
Contrast,Brightness and Sound controls?
5V, 32V Power Source.
Noise increase but no
No snow noise.
signal is received.
Check the tuner supply voltage
Does noise or signal appear
LB and HB must be approx. 5V,
at pin40 of IC801?
BT must be approx. 32V,and
NO
YES
CH preset data check.
Does noise or
Check IC801
signal appear at
and its related
Normal
pin38 of IC801?
circuit.
NO
YES
Check the tuner
Does noise or
AGC at TP201.
signal appear at
Check Q401
pin23 and 24
Q402 and related
Normal
Abnormal
of IC801?
circuit.
NO
YES
Check pin38
Check pin27
Check pin1,2 of
of IC801.
of IC801,Tuner
SF201,Tuner
Check pin37 of
and related circuit.
and related
IC801 and
circuit.
related circuit.
NO SOUND
CIRCUITS TO BE CHECKED:
NO
Audio Output Circuit.
Does signal appear
Check IC801 and
at pin6 of IC303?
its related circuit.
YES
NO
Check Speaker.
Check IC303 and
peripheral circuit.
35
21HT-15H
REF No. PARTS
DESCRIPTION
* CODE
D 0454
RH-EX1399CEZZ
ZENER DIODE UDZSTE-179.1B WAKO ELECTRIC S AB
D 0456
RH-EX1399CEZZ
ZENER DIODE UDZSTE-179.1B WAKO ELECTRIC S AB
D 0457
RH-EX1399CEZZ
ZENER DIODE UDZSTE-179.1B WAKO ELECTRIC S AB
D 0501
RH-DX0131CEZZ
DIODE EU-1 SANKEN
S AB
D 0502
RH-DX0441CEZZ
DIODE IN4002G23 GENERAL INSTRUMENT
S AB
D 0503
RH-EX0684GEZZ
ZENER DIODE MTZJ39BT ROHM
S AA
D 0504
RH-EX0684GEZZ
ZENER DIODE MTZJ39BT ROHM
S AA
D 0505
RH-DX0131CEZZ
DIODE EU-1 SANKEN
S AB
D 0507
RH-EX0603GEZZ
Z.DIODE MTZJ 3.9A
S AA
D 0508
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0509
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0510
RH-EX0627GEZZ
ZENER DIODE MTZJ8.2BT ROHM
S AA
D 0601
RH-DX0302CEZZ
DIODE UZA
S AB
D 0602
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0603
RH-DX0131CEZZ
DIODE EU-1 SANKEN
S AB
D 0604
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0605
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0606
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0607
RH-EX0653GEZZ
DIODE ZENER MTZJ18C ROHM
S AA
D 0608
RH-DX0577BMZZ
DIODE 1N4935 ACPA
S AE
D 0609
VHD1SS244//-1
SW DIODE 1SS244T-72
S AA
D 0610
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0611
RH-EX0615GEZZ
ZENER DIODE 5.6V
S AA
D 0612
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0614
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0615
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0631
RH-EX0627GEZZ
ZENER DIODE MTZJ8.2BT ROHM
S AA
D 0632
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0701
RH-DX0571BMZZ
DIODE 1N4005 ACPA
S AA
D 0702
RH-DX0571BMZZ
DIODE 1N4005 ACPA
S AA
D 0703
RH-DX0571BMZZ
DIODE 1N4005 ACPA
S AA
D 0704
RH-DX0571BMZZ
DIODE 1N4005 ACPA
S AA
D 0705
VHD1SS244//-1
SW DIODE 1SS244T-72
S AA
D 0708
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0709
RH-EX0656GEZZ
ZENER DIODE MTZJ20C ROHM
S AA
D 0751
RH-DX0302CEZZ
DIODE UZA
S AB
D 0752
RH-DX0064GEZZ
DIODE AK04V1 SANKEN
S AC
D 0753
RH-EX0612GEZZ
ZENER DIODE MTZJ5.1BT ROHM
S AA
D 0754
RH-DX0302CEZZ
DIODE UZA
S AB
D 0755
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0756
RH-EX0615GEZZ
ZENER DIODE 5.6V
S AA
D 0759
RH-DX0045BMZZ
DIODE 1N4148
S AA
D 0804
RH-EX1399CEZZ
ZENER DIODE UDZSTE-179.1B WAKO ELECTRIC S AB
D 0805
RH-EX1399CEZZ
ZENER DIODE UDZSTE-179.1B WAKO ELECTRIC S AB
D 0806
RH-EX1399CEZZ
ZENER DIODE UDZSTE-179.1B WAKO ELECTRIC S AB
D 0807
RH-EX1399CEZZ
ZENER DIODE UDZSTE-179.1B WAKO ELECTRIC S AB
D 1001
RH-PX0013PEZZ
LED L-53ID-13.95L/F
S AB
PACKAGED CIRCUITS
PR 0701
RMPTP0001BMZZ
PTC B59250-C1080-B70
S AD
X 1001
RCRSB0300CEZZ
CRYSTAL HC-49/U-S 12000KHz-A1 MURATA
S AF
COILS
L 0201
VP-DF270K0000
PEAK COIL 27UH 10%
S AB
L 0204
VP-DF270K0000
PEAK COIL 27UH 10%
S AB
L 0308
VP-CF3R3K0000
PEAK COIL 3.3UH 10%
S AB
L 0351
VP-DF3R3K0000
PEAK COIL 3,3UH 10%
S AB
L 0353
VP-DF3R3K0000
PEAK COIL 3,3UH 10%
S AB
L 0354
VP-DF3R3K0000
PEAK COIL 3,3UH 10%
S AB
L 0403
VP-XF120K0000
PEAK COIL 12UH 10% 1/8W
S AA
L 0451
VP-DF3R3K0000
PEAK COIL 3,3UH 10%
S AB
L 0602
RCILP0225CEZZ
COIL SL_A TOKYO
S AD
L 0701
RCILF0111BMZZ
COIL HR-19043
S AL
L 0801
VP-XF100K0000
PEAK COIL 10UH 10% 1/8W
S AA
L 0802
VP-XF100K0000
PEAK COIL 10UH 10% 1/8W
S AA
L 1002
VP-XF100K0000
PEAK COIL 10UH 10% 1/8W
S AA
L 3030
VP-CF3R3K0000
PEAK COIL 3.3UH 10%
S AB
CERAMIC FILTERS
CF 0401
RFILC0023CEZZ
SOUND FILTER (TAPED)
S AD
TRANSFORMERS
T 0601
RTRNZ0026PEZZ
DRIVER TRANSFORMER
S AF
T 0602
RTRNF2053CEZZ
FBT BSC21-2643S SHENZHEN
S AY
!
0$5.
63$5(3$576 '(/,9(5<6(&7,21
5()1R 3$576
'(6&5,37,21
&2'(
3,&785(78%(
9%()6(
&577+$()6;'<:
6 &'
5&,/*%0==
'(*866,1*&2,/72'$,086(1
6 $3
35,17(':,5,1*%2$5'61RWUHSODFHPHQWLWHP
'817.&-9
$'-867&+$66,6+7+
6
'817.%09
&5781,7+7+
6 $3
3:%$
027+(581,7
781(5
78
978&7)
781(57+20621
6 $=
,17(*5$7('&,5&8,76
,&
9+,$1
,&$10$7686+,7$
6 $+
,&
9+,$1
,&$10$7686+,7$
6 $*
,&
9+,.$$3
,&.,$$3,.25($(/(&7521,&6
6 $(
,&
9+,7($
,&7($313+,/,36
6 $+
,&
5+);*(==
3&283/(55$1.66+$53
6 $'
,&
9+,7$0
,&7$0)6726+,%$
6 $)
,&
5+,;&(==
,&7'$361317;7.0212
6 %(
,&
9+,0&:
,&0&:017670,&52
6 $)
75$16,67256
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&
7576&726+,%$
6 $%
4
966'(
7576'726+,%$
6 $7
4
966&.4
7576&52+0
6 $$
4
966&*:
75713190$0:
6 $$
4
966$.4
757%&60'
6 $$
4
966$.4
757%&60'
6 $$
4
966731&=(
026)(76731&=)3720(1
6 $+
4
966&*:
75713190$0:
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
4
966&.4
7576&52+0
6 $$
',2'(6
'
5+(;*(==
=(1(5',2'(07=-&752+0
6 $$
'
5+';%0==
',2'(1
6 $$
'
5+(;&(==
=(1(5',2'(8'=67(%:$.2(/(&75,& 6 $%
'
5+(;&(==
=(1(5',2'(8'=67(%:$.2(/(&75,& 6 $%
'
5+(;&(==
=(1(5',2'(8'=67(%:$.2(/(&75,& 6 $%
'
5+(;&(==
=(1(5',2'(8'=67(%:$.2(/(&75,& 6 $%
PARTS LISTING
REPLACEMENT PARTS
Replacement parts which have special safety characteristics are identi-
fied in this manual. Electrical components having such features are iden-
tified by
fied in this manual. Electrical components having such features are iden-
tified by
in the Replacement Part List.
The use of a substitute replacement part which does not have the same
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
HOW TO ORDER REPLACEMENT PARTS
To have your order completed promplty and corretly please supply the
following information.
following information.
1. MODEL NUMBER
3. PART NO.
5. CODE
3. PART NO.
5. CODE
2. REF. NO.
4. DESCRIPTION
6. QUANTITY
4. DESCRIPTION
6. QUANTITY
36
21HT-15H
REF No. PARTS
DESCRIPTION
* CODE
T 0701
RTRNW0005CEZZ
SMT TABUCHI
S AP
CAPACITORS
C 0201
VCEA0A1CW476M
ELEC C 47UF 20% 16V
S AA
C 0202
VCEA0A1AW107M
ELEC C 100UF 20% 10V
S --
C 0204
VCEA0A1HW106M
ELEC C 10UF 20% 50V
S AA
C 0206
VCKYCY1HF223Z
SC CAPACITOR 0.022UF 50V TAPED
S AA
C 0207
VCKYCY1HB472K
S.CHIP CAP 4700PF/50V T
S AA
C 0208
VCKYCY1HB821K
GRM39B 821K 50 (1608)SMD CAPACITOR
S AA
C 0209
VCKYCY1EF104Z
S CHIP TAPE CAP 0.1UF/25V
S AA
C 0210
VCCCCY1HH220J
S. CHIP CAP 22PF/50V TAPED
S AA
C 0211
VCKYPA1HF103Z
C.CAPACITOR 0.01U-F 50V
S AA
C 0212
VCKYPA1HF103Z
C.CAPACITOR 0.01U-F 50V
S AA
C 0215
VCCCCY1HH220J
S. CHIP CAP 22PF/50V TAPED
S AA
C 0302
VCEA0A1CW106M
ELEC C 10UF 20% 16V
S AA
C 0305
VCEA0A1CW337M
ELEC C 330UF 20% 16V
S AA
C 0307
VCEA0A1CW226M
ELEC C 22UF 20% 16V
S AA
C 0308
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0311
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0320
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0322
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0331
VCEA0A1HW225M
ELEC C 2,2UF 20% 50V
S AA
C 0341
VCKYCY1HB332K
s.chip cap 3300pf /50v
S AA
C 0342
VCEA0A1CW106M
ELEC C 10UF 20% 16V
S AA
C 0343
VCEA0A1CW106M
ELEC C 10UF 20% 16V
S AA
C 0345
VCKYCY1HB222K
S CHIP CAPACITOR 0.0022UF/50V TAPED
S AA
C 0346
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0348
VCEA0A1HW105M
ELEC C 1UF 20% 50V
S AA
C 0349
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0351
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0352
VCEA0A1CW107M
ELEC C 100UF 20% 16V
S AA
C 0354
VCEA0A1CW107M
ELEC C 100UF 20% 16V
S AA
C 0358
VCEA0A1CW106M
ELEC C 10UF 20% 16V
S AA
C 0359
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0361
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0362
VCEA0A1CW106M
ELEC C 10UF 20% 16V
S AA
C 0363
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0402
VCCCCY1HH220J
S. CHIP CAP 22PF/50V TAPED
S AA
C 0403
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0404
VCEA0A1CW106M
ELEC C 10UF 20% 16V
S AA
C 0431
VCKYCY1HF223Z
SC CAPACITOR 0.022UF 50V TAPED
S AA
C 0432
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0433
VCKYCY1EF104Z
S CHIP TAPE CAP 0.1UF/25V
S AA
C 0451
VCEA0A1CW106M
ELEC C 10UF 20% 16V
S AA
C 0453
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0502
VCEA0A1EW477M
ELEC C 470UF 20% 25V
S AB
C 0504
VCKYPA1HB102K
C.CAPACITOR 1000PF/50V
S AA
C 0505
VCEA0A1HW107M
ELEC C 100UF 20% 50V
S AA
C 0506
VCKYPA1HB102K
C.CAPACITOR 1000PF/50V
S AA
C 0507
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0508
RC-FZ0272CEZZ
C POL P 0,39UF 100V
S AC
C 0509
VCQYTA2AA563J
POL FILM C 56NF 5% 100V
S AB
C 0511
VCKYPA1HB102K
C.CAPACITOR 1000PF/50V
S AA
C 0512
VCKYCY1HF103Z
CHIP CAP 0.01UF/50V
S AA
C 0513
VCKYPA2HB102K
CERAM C 1NF 10% 500V
S AA
C 0514
VCEA0A1EW477M
ELEC C 470UF 20% 25V
S AB
C 0515
VCQYTA1HM103J
F. CAPACITOR 0.01UF/50V
S AA
C 0521
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0522
VCKYPA1HB102K
C.CAPACITOR 1000PF/50V
S AA
C 0531
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0532
VCKYCY1HB102K
S. CHIP CAP 0.001UF/50V
S AA
C 0533
VCQYTA1HM104J
F. CAPACITOR 0.1 UF 50 V
S AB
C 0599
VCKYPA1HB102K
C.CAPACITOR 1000PF/50V
S AA
C 0602
VCEA0A1CW477M
ELEC C 470UF 20% 16V
S AB
C 0603
VCEA0A1CW107M
ELEC C 100UF 20% 16V
S AA
C 0604
VCKYPA1HF103Z
C.CAPACITOR 0.01U-F 50V
S AA
C 0605
VCEA0A1AW227M
ELEC C 220UF 20% 10V
S --
C 0606
VCEA0A1CW107M
ELEC C 100UF 20% 16V
S AA
C 0607
VCKYPA1HF103Z
C.CAPACITOR 0.01U-F 50V
S AA
C 0608
VCKYCY1EF104Z
S CHIP TAPE CAP 0.1UF/25V
S AA
C 0609
VCKYPA2HB102K
CERAM C 1NF 10% 500V
S AA
C 0610
VCFYSB2EB823J
POL FILM C 82NF 5% 100V
S AB
!
5()1R 3$576
'(6&5,37,21
&2'(
&
9&)39&&$+
33),/0&1)9
6 $&
&
9&)39&'%-
33),/0&1)9
6 $&
&
5&(=&(==
(/(&&.0)9%00&1,&+,&21
6 $*
&
9&4<7$+0-
)&$3$&,7258)9
6 $%
&
9&($$+:0
(/(&&8)9
6 $$
&
9&($$+:0
(/(&&8)9
6 $$
&
9&($$&:0
(/(&&8)9
6
&
9&($$&:0
(&$3$&,7258)9[
6 $$
&
9&.<&<()=
6&+,37$3(&$38)9
6 $$
&
9&.<&<+%.
6&+,3&$3$&,7258)97$3('
6 $$
&
9&($$&:0
(/(&&8)9
6 $$
&
5&)=%0==
32/&%1)9;
6 $%
&
5&.=&(==
&(5$0&1)9
6 $&
&
5&.=&(==
&(5$0&1)9
6 $&
&
5&.=&(==
&(5$0&1)9
6 $&
&
5&(=%0==
(/(&&X)9/310*1-$0,&21
6 $0
&
9&($$(:0
(&$3$&,7258)9[
6 $$
&
9&4<7$+0-
)&$3$&,7258)9
6 $%
&
9&)<)$+$-
),/0&$3$&,7250$7
6 $%
&
5&.=&(==
&(5$0&3).9
6 $'
&
5&.=*(==
&&$33).9.;
6 $&
&
9&.<3$+%.
&&$3$&,7253)9
6 $$
&
9&.<3$+%.
&(5$0&1)9
6 $$
&
5&.=&(==
&(5$0&'(%1..$085$7$
6 $&
&
5&(=&(==
(/(&&.0)9%00&1,&+,&21
6 $*
&
9&.<3$+%.
&&$3$&,7253)9
6 $$
&
9&($$&:0
(/(&&0)9;00
6 $%
&
9&($$&:0
(&$3$&,7258)9[
6 $$
&
9&($$-:0
(&$3$&,7258)9;
6 $$
&
9&.<3$+%.
&(5$0&1)9
6 $$
&
9&($$&:0
(/(&&8)9
6 $%
&
9&.<3$+%.
&&$3$&,7253)9
6 $$
&
9&.<&<()=
6&+,37$3(&$38)9
6 $$
&
9&&&3$++-
&(5$0&3)9
6 $$
&
9&($$&:0
(/(&&8)9
6 $$
&
9&($$&:0
(/(&&8)9
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
&
9&($$&:0
(&$3$&,7258)9[
6 $$
&
9&)<)$+$-
33),/0&1)9
6 $&
&
9&)<)$+$-
33),/0&1)9
6 $&
&
9&.<&<+%.
6&+,3&$3$&,7258)97$3('
6 $$
&
9&($$+:0
(/(&&8)9
6 $$
&
9&.<&<+%.
6&+,3&$33)97
6 $$
&
9&.<&<+)=
6&&$3$&,7258)97$3('
6 $$
&
9&($$&:0
(/(&&8)9
6 $$
&
9&($$+:0
(/(&&8)9
6 $$
&
9&.<&<+%.
6&+,3&$38)9
6 $$
&
9&.<&<+%.
6&+,3&$38)9
6 $$
&
9&.<&<+%.
6&+,3&$38)9
6 $$
&
9&.<&<+%.
6&$3$&,7253)9
6 $$
&
9&($$&:0
(&$3$&,7258)9[
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
&
9&($$&:0
(&$3$&,7258)9[
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
&
9&&&&<++-
6&+,3&$33)97$3('
6 $$
&
9&&&&<++-
6&+,3&$33)97$3('
6 $$
&
9&.<&<+)=
6&&$3$&,7258)97$3('
6 $$
&
9&($$-:0
(/(&&8)9
6 $$
&
9&($$-:0
(/(&&8)9
6 $$
&
9&.<&<()=
6&+,37$3(&$38)9
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
&
9&($$-:0
(/(&&8)9
6 $$
&
9&($$&:0
(/(&&8)9
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
&
9&.<&<+)=
&+,3&$38)9
6 $$
5(6,67256
5
95'5$%(-
5(6.2+0:
6 $$
5
956&<-)-
6&+,35(62+07$3('
6 $$
5
956&<-)-
6&+,35(67$3(.2+0
6 $$
5
956&<-)-
685)$&(02817&+,35(6,67252+0
6 $$
5
956&<-)-
6&+,35(62+07$3('
6 $$
Click on the first or last page to see other 21HT-15 (serv.man8) service manuals if exist.