Sanyo TS4421S, Service Manual

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48
40
37
36
30
25
24
20
13
12
10
1
+ +
MTS
KR
KL
C3439
C3436
C3404
C3412
C3408
C3413
C3416
C3417
C3418
C3424
C3427
C3401
C3432
J030
J031
1001
J092
D1021
JP3401
J101
J117
R65
R1912
J118
C042
C0
005
J125
J126
J127
J128
J129
R019
J028
J143
J141
1
JP029
J075
JW1
JW4
JP0
JP3402
55
R042
R041
C3414
J161
1
3
3
C34
R3411
R3422
R3407
C3407
R3421
C3421 C3422
C3433 C3434
C3431
IC3401
C3423
C3426
B6
PB1
R3433
R3432
R3426
J137
R3412
JP031
R033
R034
R037
R035
C3420
JP3404
JP3403
JP3405 JP1001
C3405
C3403
MENU CH - CH - MENU
E
1 27 10 20
28 54 30 41 51
8
5
4
1
E
1
5
E
E
B
E
E
E
1
5
MTS
1
13
1
10
5
KR
KL
K1002
C3439
C3436
C3404
C3412
C3408
C3413
C3416
C3417
C3418
C3424
C3427
C3401
C3432
J029
J030
J031
SW1901
SW1902
D1902
K1921
R103
D249
J033
C441A
D469
C468
R468
R464
R469
R472
R480
C462
C463
R461
C466
R466
D461
R467
C470
D465
R471
D464
Q462
C467
R473
C464
R465
R462
L441-H1
C441-H1
L461
L461A
L462H1
R652
R512
C518
R655
D501
R
J035
C231
C205
R352
C233
C225
C358
C232
C201
C202
C210
IC201
D421
J036
J037
C540
520
R441
J003
R243
L4
62
X801
IC802
C805
VR463
R426
D652
C654
R653
C657
R665
R664
D693
C693
Q693
C658
C132
C245
X211
D655
J004
R357
J040
J041
J005
R866
R869
J043
R211
KP
J044
R230
D230
R654
GND SDA SCL STS ACK
C639
C656
L651
Q652
R657
C665
Q654
R669 R656
L653
C655
D651
D654
R661
C134
Q461A
Q461
Q461-H2
Q461-H1
IC501-H4
IC501-H2
IC50
R441H1
R441H2
C468A
D466
D469A
J015
J016
R540
J053
J054
J055
J056
IC681
C643
C681
J057
J058
J059
D664
C664
Q651
Q681
D671
J061
R672
R660
C663
D662
J065
D661
R695
L654
J066
D203
D202
D201
J067
J068
J017
Q691
J069
J070
J071
J072
X161
J076
J018
R228
J077
J078
J079
J080
J019
J081
JP503
JP504
J021
R1001
C1001
C1011
C1021
J085
J086
J087
J088
J089
J092
J093
J094
D1011
D1021
JP3401
J101
J106
J107
J108
J109
J112
J113
J114
J115
J116
J117
R658H1
R658H2
R1912
J027
C031
C032
C034
C035
J118
JP002
J150
R031
C042
C041
R006
J119
C005
R005
J121
R003
J122
C004
J125
J126
R029
J127
J128
J129
J130
R019
J028
JP652
J139
J143
J141
R662
J142
R036
D1001
JP029
J132
R528
D653
R1907
J075
JW1
JW4
C652
J051
D646
VR462
J140
C033
JP030
JP441
JP3402
IC002
IC001
J013
J152
JP003
J008
J155
J151
JP004
JP001
R042
L838
L837
L84
L841
JW6
JW7
R650
K1002A
C352
D639
R639
R670
JP006
JP005
R041
KX
J154
C3414
JW5
L441
J156
JP007
J158
J161
R658
C691
VR651
J163
D003
J135
1 3
1
3
C3411
C2
JP658
AUDIO AMP.
(STEREO)
AUDIO AMP.
(MONO)
(
IF /VIDEO/CHROMA/DEF.
+B ADJ.
MEMORY
IC3401
(SOLDER SIDE)
TP +B +130V
INPUT LEVEL 08
HI SEPARATION
21
LOW SEPARATION 34
ADJUST: - /+
CHOOSE:
▲▼
EXIT : MENU
Service Adjustments
-14-
1. Connect a signal generator to TP-301(- side of C3411)
on the Main Board and the ground. Signal output=300Hz,
150mVrms.
2. Connect a DC Volt-Meter to TP-317( pin-38 of IC3401)
and the ground.
3. Ground pin-2 of IC201 with the jumper lead.
4. Switch the TV set on.
Press and hold the MENU button on the TV set, and press
“3” button on the remote control transmitter to enter to the
service mode.
SOUND LEVEL ADJUSTMENT
5. Adjust voltage to become DC 500mVrms±10mVrms by
pressing the VOLUME(+/-) button on the remote control or
TV set.
6. To exit from the service mode, press the MENU button.
1. Connect an oscilloscope:
Probe-A to TP-317 (pin-38 of IC3401) and the ground.
Probe-B to TP-318 (pin-39 of IC3401) and the ground.
2. Turn on the TV set, and receive the multi sound programme.
3. Press and hold the MENU button on the TV set, and
press
“3” button on the remote control transmitter to enter the
service mode.
4. Select “LOW SEPARATION” by pressing the CHANNEL
UP/DOWN button on the remote control or TV set.
STEREO SEPARATION ADJUSTMENT
C3411
MAIN BOARD
TP-317(pin-38 of IC3401)
MAIN BOARD
(Solder side)
TP-318 (pin-39 of IC3401)
Pin-2 of IC201
INPUT LEVEL 08
HI SEPARATION
21
LOW SEPARATION 34
ADJUST: - /+
CHOOSE:
▲▼
EXIT : MENU
5. Adjust level of 300Hz at TP-317 (pin-38 of IC3401) to
become minimum level by pressing the VOLUME(+/ -)
button on the remote control or TV set.
Minimum leakage
TP-317(R)
300Hz
IC3401