SERVICE MANUAL
DA
TA
COLOR TELEVISION
TV-A20S2 KE
S/M Code No. 09-011-423-8S2
SUPPLEMENT
· This Service Manual contains information about the difference between
TV-A20S2 (KEJG6CM) and TV-A205 (KER). If requiring the other information,
see Service Manual of TV-A145/A205 (KER), (S/M Code No. 09-974-180-8FP).
2
When servicing and checking on the TV, note the followings.
NOTICES BEFORE REPAIRING
To make the best use of this equipment, make sure to
obey the following items when repairing (or mending).
1. Do not damage or melt the tunicate of the leading wire on
the AC1 side, including the power supply cord.
2. Do not soil or stain the letters on the spec. inscription plates,
notice labels, fuse labels, etc.
3. When repairing the part extracted from the conducted side
of the board pattern, fix it firmly with applying bond to the
pattern and the part.
4. Restore the following items after repairing.
1) Conditions of soldering of the wires (especially, the
distance on the AC1 side).
2) Conditions of wiring, bundling of wires, etc.
3) Types of the wries.
4) Attachment conditions of all types of the insulation.
5. After repairing, always measure the insulation resistance
and perform the voltage-withstand test (See Fig-1).
1) The insulation resistance must be 7.0 to 9.5 M
when
applying
500V per second.
2) In the voltage withstand test, apply 3 kV for 1 or more
minutes and check that the GO lamp lights.
*
Breaking current set to 6 mA.
*
Connect the safety checker as shown in Fig-1, then
measure the resistance and perform the test.
*
Do not touch the equipment during testing.
*
For details of the safety checker, refer to the supplied
Operation manual.
and high voltage parts. Therefore, put these parts in the
original positions.
5. Take care of the cathode-ray tube.
By setting an explosion-proof cathode-ray tube in this
equipment, safety is secured against implosion.
However, when removing it or servicing from the back, it
gives out shock that is dangerous. Take enough care to deal
with it.
6. Avoid an X-ray.
Safety is secured against an X-ray by giving considerations
to the cathode-ray tube and the high voltage peripheral
circuit, etc. Therefore, when repairing the high voltage
peripheral circuit, use the designated parts and do not
change the circuit. Repairing, except indicates, causes
rising of high voltage, and the cathode-ray tube emits an
X-ray.
7. Perform a safety check after servicing.
Confirm that the screws, parts and wiring which were
removed in order to service are put in the original positions,
or whether there are deteriorated portions around the places
serviced.
Fig-1
Insulation resistance: 7.0 to 9.5 M
(500 V/s)
Voltage-withstand: 3 kV for 1 or more minutes
1. Keep the notices.
As for the places which need special attentions, they are
indicated with labels or seals on the cabinet, chassis and
parts. Make sure to keep the indications and notices in the
operation manual.
2. Avoid an electric shock.
There is a high voltage part inside. Avoid an electric shock
while the electric current is flowing.
3. Use the designated parts.
The parts in this equipment have the specific characteristics
of incombustibility and withstand voltage for safety.
Therefore, use a part which has the same character as the
replaced part. Especially as to the important parts for safety
which is indicated in the circuit diagram or the table of parts
with a
mark, the designated parts must be used.
4. Put parts and wires in the original position after assembling
or wiring.
There are parts which use the insulation material such as a
tube or tape for safety, or which are assembled so that these
parts do not make contact with the printed board. The inside
wiring is designed not to get close to the pyrogenic parts
!
Safety checker (Model 7110, etc.)
Earth cable
AC cable
Connect the earth cable
to the outside metal part
terminal.
3
SPECIFICATIONS
Category
Color television
Broadcasting color system
PAL (B/G, D/K), SECAM (B/G, D/K, K1)
Television color system (Video input)
PAL, SECAM, NTSC
3.58, NTSC4.43, PAL60
Receivable channel
BAND
CHANNEL
E2- E12 (WEST EUROPE)
R1-R12 (EAST EUROPE)
VHF
1-9 (IVORY COAST)
S1-S20 (OSCAR CABLE CH)
S21-S23 (HYPER CABLE CH)
UHF
E21-E69 (EUROPE)
S24-S41 (HYPER CABLE CH)
Aerial Input
75 ohms, unbalanced
Picture Tube
20"
Screen size
404(W) x 480(D) x 303(H)mm
(16 x 19 x 12 in.)
Video Input/Output
1 Vp-p, 75 ohms
Audio Input
0.5 Vrms., 33 kohms more
Audio Output
0.5 Vrms., 2.2 kohms less
Speaker
103 x 45 mm (41/
8 x 1
3/
16 in.) oval
Operating Voltage
100 240 V AC, 50/60 Hz
Power Consumption
85W
Headphone jack
Stereo-mini jack
Operating temperature
5
°C 40°C
Operating humidity
35% 80%
Dimensions
580(W) x 491(D) x 425(H)mm
(227/
8 x 19
3/
8 x 16
3/
4 in.)
Weight
19 kg (41.8 lbs.)
· Design and specifications are subject to change without notice.
3
4
ELECTRICAL MAIN PARTS LIST
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.
KANRI
NO.
DESCRIPTION
PART NO.
IC
86-LB4-621-010
IC,M37220M3-160SP
87-A21-133-080
IC,BMR-0101D
87-A21-377-010
IC,S-24C02BDP-1A
87-A91-538-010
RCR UNIT,SBX1981-72P
87-A20-371-080
IC,KA33V
87-A20-436-010
IC,LA7565N
87-070-080-010
IC,TA8759BN
87-017-356-010
IC,UPC1406HA
87-001-485-010
IC,TA8207K
87-017-804-010
IC,BU4052BC
87-002-779-010
IC,LA7956
87-027-656-010
IC,TC4066BP
87-070-237-010
IC,LA7832
87-A20-517-010
IC,STR-S6707
87-A21-785-010
IC,KIA7809API
87-A20-389-010
IC,NJM7809FA
87-020-881-080
IC,NJM78L05A
TRANSISTOR
87-A30-090-080
FET,2SK2541
87-A30-065-080
TR,2SC2785FE
87-A30-066-080
TR,2SA1175FE
89-334-674-580
TR,2SC3467(D/E)
87-A30-050-010
TR,2SD2499
89-320-610-080
TR,2SC2061
87-A30-041-110
TR,SE115N
89-342-174-510
TR,2SC4217 D/E
DIODE
87-A40-291-080
DIODE,1N4148M(CPT)
87-A40-349-080
ZENER,MTZJ7.5C
87-A40-001-080
ZENER,MTZJ12C
87-A40-235-080
ZENER,MTZJ9.1C
87-A40-004-080
DIODE,MTZJ16A
87-070-092-080
DIODE,S5566B
87-017-963-080
DIODE,TVR5G
87-017-654-060
DIODE,GBU6JL6131
87-070-111-060
DIODE,RU30A
87-A40-465-090
DIODE,FR202
87-017-354-080
DIODE,RU3
MAIN C.B
84-LB3-216-010
HLDR,LED
BPF201
87-A90-337-010
FLTR,SAW OFW-K2959M
BPF305
84-LB3-622-010
FLTR,BELL 2 S-10E
C1
87-018-109-080
CAP,TC U 22P-50 J SL UP050
C2
87-018-109-080
CAP,TC U 22P-50 J SL UP050
C3
87-018-109-080
CAP,TC U 22P-50 J SL UP050
C4
87-018-109-080
CAP,TC U 22P-50 J SL UP050
C5
87-018-109-080
CAP,TC U 22P-50 J SL UP050
C6
87-018-109-080
CAP,TC U 22P-50 J SL UP050
C7
87-018-123-080
CAP,TC U 220P-50 K B UP050
C9
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C10
87-010-248-080
CAP,E 220-10 M 11L SME
C11
87-010-405-080
CAP,E 10-50 M 11L SME
C12
87-018-119-080
CAP,TC U 100P-50 K B UP050
C13
87-010-544-080
CAP,E 0.1-50 M 11L SME
C14
87-010-405-080
CAP,E 10-50 M 11L SME
C16
87-018-131-080
CAP,TC U 1000P-50 K B UP050
C17
87-018-119-080
CAP,TC U 100P-50 K B UP050
C18
87-018-119-080
CAP,TC U 100P-50 K B UP050
C19
87-018-119-080
CAP,TC U 100P-50 K B UP050
C23
87-010-401-080
CAP,E 1-50 M 11L SME
C25
87-010-404-080
CAP,E 4.7-50 M 11L SME
C26
87-010-404-080
CAP,E 4.7-50 M 11L SME
C27
87-010-401-080
CAP,E 1-50 M 11L SME
C28
87-010-404-080
CAP,E 4.7-50 M 11L SME
C29
87-010-404-080
CAP,E 4.7-50 M 11L SME
C30
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C40
87-018-131-080
CAP,TC U 1000P-50 K B UP050
C101
87-010-401-080
CAP,E 1-50 M 11L SME
C102
87-010-384-080
CAP,E 100-25 M 11L SME
C103
87-A10-207-080
CAP,TC U 0.01-50 K B UP050
C212
87-010-401-080
CAP,E 1-50 M 1LL SME
C213
87-010-384-080
CAP,E 100-25 M 11L SME
C214
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C218
87-018-133-080
CAP,TC U 4700P-16 N X UP050
C219
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C221
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C222
87-018-121-080
CAP,TC U 150P-50 K B UP050
C223
87-010-401-080
CAP,E 1-50 M 11L SME
C225
87-018-119-080
CAP,TC U 100P-50 J B UP050
C301
87-018-122-080
CAP,TC U 180P-50 K B UP050
C302
87-018-122-080
CAP,TC U 180P-50 K B UP050
C303
87-018-122-080
CAP,TC U 180P-50 K B UP050
C307
87-A11-148-080
CAP,TC U
0.1-50 Z F
C309
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C310
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C311
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C312
87-010-400-080
CAP,E 0.47-50 M 11L SME
C313
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C314
87-018-122-080
CAP,TC U 180P-50 K B UP050
C315
87-018-107-080
CAP,TC U 18P-50 J SL UP050
C316
87-018-131-080
CAP,TC U 1000P-50 K B UP050
C320
87-010-529-080
CAP,E 1-50 M BP
C327
87-010-101-080
CAP,E 220-16 M 11L SME
C328
87-018-195-080
CAP,TC U 1200P-16 M X UP050
C329
87-010-401-080
CAP,E 1-50 M 11L SME
C330
87-018-124-080
CAP,TC U 270P-50 K B UP050
C332
87-010-403-080
CAP,E 3.3-50 M 11L SME
C335
87-010-380-080
CAP,E 47-16 M 11L SME
C336
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C344
87-010-400-080
CAP,E 0.47-50 M 11L SME
C348
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C349
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C350
87-018-123-080
CAP,TC U 220P-50 J B UP050
C351
87-010-401-080
CAP,E 1-50 M 11L SME
C352
87-010-401-080
CAP,E 1-50 M 11L SME
C354
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C356
87-018-122-080
CAP,TC U 180P-50 K B UP050
C372
87-010-404-080
CAP,E 4.7-50M 11L SME
C373
87-018-115-080
CAP,TC U 47P-50 J SL UP050
C374
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C375
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C376
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C377
87-010-260-080
CAP,E 47-25 M 11L SME
C378
87-010-405-080
CAP,E 10-50 M 11L SME
C399
87-A11-148-080
CAP,TC U 0.1-50 Z F
C403
87-010-384-080
CAP,E 100-25 M 11L SME
C404
87-010-401-080
CAP,E 1-50 M 11L SME
C405
87-010-401-080
CAP,E 1-50 M 11L SME
C406
87-010-401-080
CAP,E 1-50 M 11L SME
C409
87-010-260-080
CAP,E 47-25M 11L SME
C410
87-010-384-080
CAP,E 100-25 M 11L SME
C411
87-010-384-080
CAP,E 100-25 M 11L SME
C413
87-010-260-080
CAP,E 47-25 M 11L SME
C414
87-010-260-080
CAP,E 47-25 M 11L SME
C415
87-010-529-080
CAP,E 1-50 M BP
C416
87-010-529-080
CAP,E 1-50 M BP
C417
87-010-260-080
CAP,E 47-25 M 11L SME
C419
87-010-384-080
CAP,E 100-25 M 11L SME
C420
87-015-997-090
CAP,E 2200-16 M 11L SME
C421
87-010-381-080
CAP,E 330-16 M 11L SME
C422
87-010-381-080
CAP,E 330-16 M 11L SME
C451
87-010-402-080
CAP,E 2.2-50 M 11L SME
!
!
REF. NO.
5
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.
KANRI
NO.
REF. NO.
DESCRIPTION
PART NO.
!
!
!
!
!
C452
87-010-384-080
CAP,E 100-25 M 11L SME
C453
87-010-401-080
CAP,E 1-50
M 11L SME
C454
87-010-405-080
CAP,E 10-50 M 11L SME
C456
87-010-405-080
CAP,E 10-50 M 11L SME
C457
87-010-401-080
CAP,E 1-50 M 11L SME
C458
87-010-405-080
CAP,E 10-50 M 11L SME
C459
87-010-405-080
CAP,E 10-50 M 11L SME
C460
87-010-221-080
CAP,E 470-10 M 11L SME
C461
87-010-405-080
CAP,E 10-50 M 11L SME
C462
87-010-405-080
CAP,E 10-50 M 11L SME
C465
87-010-384-080
CAP,E 100-25 M 11L SME
C501
87-018-127-080
CAP,TC U 470P-50 K B UP050
C502
87-018-134-080
CAP,TC U 0.01-16 N Y UP050
C503
87-010-405-080
CAP,E 10-50 M 11L SME
C507
87-018-118-080
CAP,TC U
82P-50 K B UP050
C508
87-018-131-080
CAP,TC U 1000P-50 K B UP050
C509
87-010-247-080
CAP,E 100-50 M SME
C510
87-010-394-080
CAP,E 220-35 M SME
C513
87-010-397-090
CAP,E 1000-35 M SME
C514
87-010-402-080
CAP,E 2.2-50 M 11L SME
C603
87-A12-492-080
CAP,CER 1000P-500 K B Y5P
C605
87-016-481-010
CAP,PP 0.47-200 J
C606
87-016-357-010
CAP,PP 0.01-1250
C607
87-012-399-010
CAP,CER 1500P-2K KBN DE
C610
88-238-450-810
CAP,CER 150P-500K YP
C801
87-A10-223-010
CAP,M/P 0.22-250 K
C802
87-016-519-010
CAP,M/P 0.1-250 K
C806
87-018-131-080
CAP,TC-U 1000P-50 K B UP050
C807
87-010-405-080
CAP,E 10-50 M 11L SME
C808
87-A10-732-090
CAP,E 47-160 M SK
C809
87-A12-492-080
CAP,CER 1000P-500 K B Y5P
C810
87-016-518-090
CAP,E 220-400 SMH
C811
87-010-381-080
CAP,E 330-16 M 11L SME
C812
87-A10-519-010
CAP,CER 4700P-4K M E KX
C813
87-A12-493-080
CAP,CER 2200P-500KB Y5P
C818
87-010-371-080
CAP,E 470-6.3 M 11L SME
C820
87-A12-492-080
CAP,CER 1000P-500 K B Y5P
C821
87-010-389-090
CAP,E 2200-25 M SME
C825
87-010-387-080
CAP,E 470-25 M 11L SME
C830
87-012-386-010
CAP,CER 470P-2K K BN DE
C831
87-016-373-080
CAP,E 10-250 M SME
C832
87-010-397-090
CAP,E 1000-35 M SME
C833
87-016-515-080
CAP,CER 1000P-1K K B DE
C835
87-010-385-080
CAP,E 220-25 M SME
C837
87-010-405-080
CAP,E 10-50 M 11L SME
C838
87-A10-832-010
CAP,CER 1000P-1K K R LONG
C839
87-010-405-080
CAP,E 10-50 M 1LL SME
C840
87-A10-733-090
CAP,E 220-160 SK
C841
87-A10-832-010
CAP,CER 1000P-1K K R LONG
C997
87-018-150-080
CAP,TC U 18P-50 J CH
CF203
87-A90-223-080
FLTR, SFSH6.0MCB
CF205
87-008-578-080
FLTR,TPS6.5MB2
CF206
87-008-577-080
FLTR,TPS5.5MB2
CN301
84-LB2-631-010
CONN ASSY,5P TN-4
CN801
84-LB3-690-110
CONN ASSY,4P TN-1
D5
87-070-110-010
LED,SLP-181B-51 RED
DL301
84-LB3-638-010
DL,ADL-CP144E
DL302
87-A90-370-010
DELAY LINE,ELB10Z334
F801
87-035-458-010
FUSE,4A 250V T 218
FB802
87-003-223-080
F-BEAD,BL02RN2
FC801
87-033-213-080
FUSE CLAMP,PFC5000
FC802
87-033-213-080
FUSE CLAMP,PFC5000
ICP801
87-001-132-080
PROTECTOR,IC ICP-N38
J401
87-A60-322-110
JACK,PIN 3P Y-W-R W/SW
J402
87-A60-324-110
JACK,PIN 6P Y-W-R W/SW
J403
87-A60-420-010
JACK,3.5 ST (MSC)
L1
87-003-152-080
COIL, 100UH J LAL02
L101
87-005-481-080
COIL,47UH J FLR50
L206
87-003-144-080
COIL,6.8UH K LAL02
L207
87-003-102-080
COIL,10UH J LAL02
L210
86-LB7-656-010
COIL,VCO 38.0MHZ LA7565N
L221
87-003-102-080
COIL,10UH J LAL02
L301
84-LB3-668-010
FLTR,SECAM DET
L302
84-LB3-668-010
FLTR,SECAM DET
L303
82-JT2-608-010
FLTR,DL PHASE
L304
87-003-145-080
COIL,8.2UH K LAL02
L305
82-JT2-611-010
FLTR, SECAM REF
L306
87-003-286-080
COIL,56UH J LAL02
L308
87-003-147-080
COIL,22UH J LAL02
L309
87-003-286-080
COIL,56UH J LAL02
L310
87-005-473-080
COIL,10UH J FLR50
L601
86-LB3-620-010
COIL,ELC16B181L H SIZE
L801
87-005-770-080
COIL, 47UH K #7607
L803
87-JBD-625-010
DGC,20 15 OHM
L804
82-226-689-080
COIL, 2.2MH J TL08
LF802
84-LB3-670-010
FLTR,LINE HL-24-822
PN401
87-049-469-010
CONN,4P V
PN601
87-099-675-010
CONN,5P V V
PN801
82-481-649-010
PLUG,2P MINI(*)
PN802
87-099-674-010
CONN,2P VA V
PS802
87-A30-096-010
P-TR,TLP721F
PT801
86-LB4-655-010
PT,KER S/W TRANS(`20')
R102
87-A00-164-090
RES,M/F 12K-2W J RSF(S)
R326
87-A00-067-090
RES,M/F 6.8K-3W J
R405
87-A00-143-090
RES,M/F 1.0-1W J RSF(S)
R412
87-025-597-090
RES,M/F 220-1W J
R413
87-025-597-090
RES,M/F 220-1W J
R608
87-025-598-010
RES,CEM 2.2K-5W J
R616
87-A00-275-090
RES,FUSE 2.2K-1W JR TYPE
R801
87-A00-226-010
RES,CEM 2.7-10W K T
R802
87-A00-170-090
RES,M/F 82K-3W J RSF(S)
R806
87-A00-208-090
RES,M/F 22-1/2W
R809
87-A00-050-060
RES,FUSE 2.2-1W J R-TYPE
R811
87-A00-216-090
RES,M/F 0.33-2W J RSF(S)
R812
87-A00-224-090
RES,SD 8.2M-1W J CE
R818
87-A00-053-060
RES,FUSE 4.7-1W JR TYPE
R819
87-A00-246-090
RES, M/F 220-2W J RSF(S)
R821
87-A00-050-060
RES,FUSE 2.2-1W J R-TYPE
SFR1
87-024-438-080
SFR,220K H RH063MC
SFR2
87-024-357-080
SFR,100K EVN DJAA03
SFR201
87-024-354-080
SFR,22K EVN DJAA03
SFR301
87-024-349-080
SFR,1K EVN DJAA03
SFR302
87-024-349-080
SFR,1K EVN DJAA03
SFR501
87-024-356-080
SFR,47K EVN DJAA03
SP401
87-A91-412-010
SPKR,4*10 8OHM 5W
SP402
86-LBT-621-010
SPKR,4*10 8OHM 5W
SW2
87-036-267-080
SW,TACT SKHVBK
SW3
87-036-267-080
SW,TACT SKHVBK
SW4
87-036-267-080
SW,TACT SKHVBK
SW5
87-036-267-080
SW,TACT SKHVBK
SW6
87-036-267-080
SW,TACT SKHVBK
SW7
87-036-267-080
SW,TACT SKHVBK
SW801
87-A90-364-010
SW,PUSH SDDLB1-C-D-2
T601
84-LB3-651-010
TRANS,HD MS-101N
T602
84-LB2-606-010
FBT,HFL1530G
TH801
87-A90-830-010
POS-THMS,PTH451C463BF9ROQ270
TU101
86-LB7-653-010
TU UNIT,BT-AH458
X1
87-030-212-080
VIB,CER 8.000MHZ CST
X201
87-A70-043-010
VIB,CER 503KHZ CSBE5
X301
87-A70-054-080
VIB,XTAL 4.43MHZ AQC-1018
X302
87-030-327-010
VIB,CER 503.500KHZ CSB F30
X303
87-A70-007-080
VIB,XTAL 3.58MHZ AQC-1001
NK C.B
C551
87-A12-492-080
CAP,CER 1000P-500 K B Y5P
C552
87-016-037-060
CAP,CER 1000P-2K K B DE
C553
87-018-125-080
CAP,TC U 330P-50 K B UP050
C554
87-018-125-080
CAP,TC U 330P-50 K B UP050
C555
87-018-129-080
CAP,TC U 680P-50 K B UP050
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!