Sanyo CM21SP81 Service Manual page 30

CRT BOARD (Component Location)
C721
Q701
MAIN BOARD (Component Location)
A1901A
SW1901 SW1902 SW1903
POS
POS
UP
A1901 D1910 DOWN
SW601
C1902
L601-H8
L601-H7
SW601-H1
JP601 JP602
L601-H2 L601-H1
SW601-H2
L601-H3 L601-H4
J606
L601-H6 L601-H5
R602 KE
KE-1 KE-2
D606
C607
KG C627
C606
F601
TP-EE
C607-H1 C607-H2
C628
C612
T611
R622
R618
D616
J605
R616
L605
C615 Q616 T611-H2
R603
Q614 E E
R605
T611-H4
C613
R617
R609
R607
Q613
Q613-H1
R606
Q611
E Q613A
T611-H7
C608
R612-H2 Q613-H
R612 R612-H1
C608A
TP-B
L631
R355
T471A
KDY-6
C441
2 1
KDY-5
3
T471-H2 T471-H1
KDY-4
C441A
4
R435A-H1
T471
T471-H4
5
FBT JP436
6
8
T471-H10
7
KDY
T471-H7
T471-H8
10
12
R424
T471-H12
R422
R426
11 R486
D476
R423
T471-H11 D468
R475
C491 D448
D485
C469
D421
C471 3 1
JP486
Q432-H5
KQ
K7P
5 1
R724
J705
Q703
Q705
K7U
R712
L702
3 R711
1
R719
R713
K7Q
WHITE YELLOW YELLOW
SW1904 SW1905 SW1906
VOL VOL
MENU TV/AV
UP DOWN
J642
AUDIO VIDEO
K1004
R644
JP644
C645
D663
IC651
C646
D694 R663 R689
C685
J661 D683
R664
R682
Q681
J694
E
R662
D661
D685
R661
VR631
+B ADJ.
R635
R637
D686
Q661
R639
R638
J645 Q661A
C662
C610
R686
C632
Q683
JP632
T611-H14
D632 C644
E
IC501
D662
VERT.-OUT
5
D634
R519 D512
C518
C634 C521
C643
J872
J633
R512
T611-H10
J511
C631
R511
C511
R643
C515
C514
R522
C510
C210 R230
R501
R243 JP204
D249
R211
R525
J352
27
V-CENTER J241
R441 R212 C202
L442
J468
SW501
J421
JP442
JW201
R352
L441-H2
D682
28 30
C204
JP441
R442
C286
C291
L441-H1
L441A
C281 C284 C288
J431 C287
C285
C449
IC281
T431
H-DRIVE C289
C277
* * *
R432
C431 C407 1AA4B10S02000
TP-B
DIP
R L L V
JW1003
R1001
C1017 R1010
R1020 R016
D011
R1008
R1018
C1007 C1001
J1009 J1016
D3701
J1015
J1018
C013 C014
R1016
J010
J011
IC002-H2
J032 R032
L3701
IC001-H2
JP002
C3720
JP003
J051
IC1201
C3712
J3716
IC3701
C021
C3711
J053
C011
J1201
C3710
J050
J3712
J3711
C031
J833 C3727 C3717
J832 J3710 J059
J3715
J831 C001
J3713
J830
J898
R898
J3714
C895
C012
IC002-H1
C022
J031
KP
1
4 1
X801 J3701
IC801
JP3714
IC802
J873 CPU KX-1
R866 ACK
(SOLDER SIDE) 5 8
R869
R872 KX-2
J861 STS
J871
C893
C835 KX-3
R895
D861
SCL
J895 C891
KX-4
J228 C861
SDA
R228
J230 C225
J222
KX-5
J223
GND
J221
X161
IC202
KX
C358
C122
C233 X161A
R115
20 10 1 C1012 C1003
J115
J122
IC201
J121
IF/VIDEO/CHROMA
C1004
C1013
J174
C1010
40 C244 50 54
X211
C246 C132
D1002
C1002
J106
C205 J105
R280
L171
J104
L204
J103
C135
C209
R264 J102
C245 C1011
R267 C226 C247 R108
J1002
K1001
JW1001
C101
J101
A101
Waveforms & Voltages
(On the Main Board)
IC001 (AUDIO AMP.)
Pin-1 12.7V 2 5.9V 3 GND 4 5.9V 5 6.8V
10 5.9V 11 GND 12 5.9V
IC201 (IF/VIDEO/CHROMA)
Pin-1 2.3V 2 2.2V 3 2.5V 4 2.2V 5 2.9V
10 1.6V 11 4.1V 12 3.8V 13 4.3V 14 1.6V
19 2.6V 20 2.5V 21 2.5V 22 2.0V 23 2.5V
28 1.3V 29 1.7V 30 0.9V 31 4.5V 32 8.4V
37 1.9V 38 2.8V 39 3.5V 40 2.5V 41 0V
46 2.3V 47 4.2V 48 4.1V 49 4.1V 50 2.5V
IC202 IC651
Pin-1 7.8V 2 GND 3 5.0V Pin-1 11.8V 2 GND
IC281 (SECAM DECODER)
Pin-1 3.7V 2 5.7V 3 N.C. 4 5.8V 5 6.5V
10 GND 11 3.9V 12 1.2V 13 N.C. 14 3.9V
19 7.6V 20 0V
IC501 (VERT. OUT)
Pin-1 3.0V 2 26.0V 3 2.6V 4 GND 5 17.0V
IC802 (MEMORY)
Pin-1 GND 2 GND 3 GND 4 GND 5 5.0V
IC801 (CPU)
Pin-1 4.3V 2 3.9V 3 5.0V 4 5.0V 5 GND
10 1.6V 11 5.0V 12 0V 13 5.0V 14 3.4V
19 0V 20 0V 21 0V 22 0V 23 5.0V
28 5.0V 29 0V 30 1.6V 31 4.9V 32 5.0V
Q111 Q122 Q173 Q1902 Q261 Q431 Q432
B 1.2V B 0.6V B 0V B 5.0V B 2.3V B 0.3V B 0V
C 5.4V C 0V C 0.4V C -0.4V C 0V C 12.6V C 132.9V
E 0.5V
E 0V E 0V E 5.0V E 3.0V E 0V E 0V
Q631 Q635 Q661 Q666 Q681 Q683 Q684
B 6.8V B 3.2V B 9.9V B -0.6V B 0V B 25.4V B 0.7V
C 24.5V C 24.5V C 10.2V C 11.7V C 9.9V C 26.0V C 0V
E 6.3V E 3.2V E 9.2V E 0V E 0V E 26.1V E 0.7V
IC201-pin19
IC201-pin20 IC201-pin21 IC201-pin23
<R out> <G out>
<B out> <V drive>
3.4Vp-p
3.8Vp-p 3.6Vp-p 2.5Vp-p 1.0Vp-p Vert.
Q432-B
IC201-pin46 IC501-pin5 Q431-C
<H out>
<Y out> <V out> <H drive>
1.4Vp-p
1.9Vp-p Horiz. 50Vp-p 36.0Vp-p Horiz. 12.2Vp-p
47Vp-p 47.6Vp-p
Vert.
IC281-pin12
Q613-C
<SC-IN>
<Power out>
Horiz.
480Vp-p 4.4Vp-p
(On the CRT Board)
Q701 Q703 Q705 Q721
B 2.5V B 2.5V B 2.6V B 1.6V
C 157.1V C 152.5V C 150.2V C GND
E 2.4V E 2.5V E 2.5V E 2.0V
Q701-C Q701-B Q703-C Q703-B
<B-out> <B drive> <G-out> <G drive>
112Vp-p 4.6Vp-p 112Vp-p 4.6Vp-p
6 1.5V 7 GND 8 1.5V 9 0.4V
6 2.9V 7 0V 8 5.0V 9 2.5V
15 1.7V 16 1.6V 17 0V 18 8.3V
24 2.7V 25 5.2V 26 2.6V 27 0.9V
33 0V 34 2.5V 35 2.5V 36 3.2V
42 2.5V 43 5.0V 44 2.7V 45 2.5V
51 2.2V 52 2.0V 53 2.2V 54 3.1V
3 5.0V
6 5.0V 7 4.0V 8 N.C. 9 4.0V
15 0V 16 4.8V 17 3.7V 18 N.C.
6 26.5V 7 3.0V
6 5.0V 7 GND 8 5.0V
6 1.9V 7 2.6V 8 5.0V 9 -
15 5.0V 16 0V 17 4.8V 18 4.2V
24 0V 25 5.0V 26 - 27 3.2V
33 5.0V 34 0V 35 5.0V 36 5.0V
Q611 Q612 Q613 Q614 Q615 Q616
B 3.7V B 0.2V B 4.1V B 3.7V B 0.1V B 0.7V
C 28.8V C 3.7V C 325V C 0V C 0.2V C 0V
E 4.1V E 0V E 0V E 4.1V E 0V E 0V
Q685 Q686 Q861 Q871 Q881 Q886
B 0.6V B 24.5V B 4.4V B -0.1V B -0.3V B 0.7V
C 24.4V C 0V C 5.0V C 4.8V C 4.2V C 0V
E 0.2V E 24.5V E 5.0V E 0V E 0V E 0V
IC201-pin28
IC201-pin27 IC201-pin44
<H drive> <Sandcastle> <CVBS int.>
6.5Vp-p 1.8Vp-p 4.6Vp-p 1.7Vp-p 0.8Vp-p
Horiz. Horiz. Horiz.
Q432-C
Q612-C Q613-B
<H out> <Power drive>
<Power drive>
21.2Vp-p
21.6Vp-p
1000Vp-p 1020Vp-p Horiz.
IC281-pin17 IC281-pin7 IC281-pin9
<VIDEO IN> <R-Y OUT> <B-Y OUT>
1.7Vp-p 1.0Vp-p 0.8Vp-p 0.7Vp-p
Horiz.
(Taken using SECAM signal.)
Q705-C Q705-B
<R-out> <R drive>
101Vp-p 4.7Vp-p
C2ESA
C2ES