Sanyo C21LF37 Service Manual page 30

CRT BOARD (Component Location)
1AA4B10E6900B
Q701 R741
B-OUT D741
E
D742
J702
Q701-L
D754
Q711
L700 Q721
R-OUT
L700Z
G-OUT
E
E
Q721-L Q711-L
C700
10 9 9
R725-M R715
11 8
K7D
8
7
6 7
K7M
5
3 6
4
5
R732
1
C710
K7P
1 5
4
K701
MAIN BOARD (Component Location)
R/G
D1901
VOL + VOL + VOL + VOL - VOL - VOL -
J032
A1901
SW1905 SW1904 SW1903
L601
POWER
L601-H1
L601-H2
T4AL250V
RL601
L601-H3
L601-H4
SW601-H1 SW601-H2
C610
R602
D608
R602-H5
R602-H7
R602B
R602-H2
C608
C609
SW601-H3 SW601-H4 R602-H8 R602-H6
R602A
SW601
D610
KG
D615 CONVERTER
Q613-H7 TRANS.
R611 R627
C614
D616
T611B
R614
R642
D617
R613
R641
T611A
C615
R629
R631
Q613 L612
R628
Q613-H5
L613
C617
Q613-H6
R449A
R449
TP-B
R435H1
R423
R423A
C432
Q432-H6
C355
R433
JP476
Q432-H7
R435H2
R355
C433
C434
T471-H3
3 3
T471-H2 T471-H1
C424-H1
Q432-H3 C423-H2
T471
C B
T471-H4
Q432-H2
(FBT)
T471-H5
Q432 Q432-H1
T471A
E
T471-H6
H-OUT
T471-H7
T471-H10
T471-H8
T471-H9
C423-H1
JP487
JP486
C486A
T471-H11
C420A-H1
C487
KDY
D485
Q432-H4
Q432-H5
4 KQ
CH + CH + CH + CH - CH - MENU MENU
SW1902
K1002A K1002
K1921
SW1901
D1902
R1001
C693
D1011
C1021
C1011
R029
C663
JP3402
KL
JW4
1
JP3401
C3432
C654
C3418 IC3401 C3401
C042
MTS
C3416 (SOLDER SIDE)
C3412
C3413
C3408
D654 C035
J027 C031 C004
C658
D653
C032
J122 J151
C657
10 1
IC001
IC002
13
J008
1
AUDIO AMP.
C691
JP004 JP003
(STEREO)
JP007
Q651
D671
C643
R672
R669 R656
J066
JW6
C651
R653
R652 C681
R103
J081
TP +B +130V
R243
D646 J068
D464 D465 R466 J040
R426
J053
J036
C468 R467
C467
C540
Q461-H1
L461 R465 J106
R432
R480
J059
VR463
C464
C462
R462
IC501-H4
C465
C468A
IC501-H2
R472
VR462
C465A
R471
J003
R469
L462H1
L462H2
R468
JP441
J037
JW5
C441-H1 C518
Q461-H2
L441-H1
C442-H1
C425-H1
C204
C441-H2 L441-H2 C209
L441A
C442-H3
R442H1 R267
C441-H3
C511
C442-H2
J084
R264
L442-H1 JP501
C510
R516
L442-H2 C515A
C515
L442 C527
C514
KDY-4
R442H2
J105
JW2
KDY-5
R485
D486 C469
IC501-H1 IC501-H3
R487 D468
D467
R486
D448
1
D476
R475
DIP
1AA4B10E3370A
JW1
3
IC802
DIP
MEMORY
X801 D861
8 5
(MONO)
C893
AUDIO AMP.
L842
1
4
JP006 C805
J114
IC801
C835
(CPU)
J115
J089
R818
J090
KX (SOLDER SIDE)
J116 R831
J043
1
5
J091
JP503
J070
J071
D655
J072
D201
5
1 KP
D203
D202
C178
X161
J156
J102
C210
C202
27 20 10 5 1
IC202
J095
IC201
J082
IF /VIDEO/CHROMA/DEF.
J039
41
28 30 51 54
X211
C245
11 IF
10
D102
L171
9 TB
C246
C247
8
L204 C135
C244
C1023
J100 C1013 7 PB
C227 6 MB
D1022
TPHH
5 DT
C106
4 CLK
J022
K1003 3 GND
K1001
R1005 2
1 AGC
JW3
TP-A TP101C
J098
Waveforms & Voltages
(On the Main Board)
IC002 (AUDIO AMP.)
Pin-1 8.9V 2 1.6V 3 GND 4 1.6V 5 5.8V
10 GND 11 N.C. 12 9.0V 13 N.C.
IC1201 (VIDEO SW)
Pin-1 9.1V 2 4.2V 3 0V 4 3.5V 5 GND
IC201 (IF/VIDEO/CHROMA)
Pin-1 2.3V 2 2.2V 3 2.7V 4 1.8V 5 2.9V
10 2.5V 11 4.5V 12 4.4V 13 4.4V 14 1.6V
19 2.6V 20 2.6V 21 2.7V 22 2.0V 23 2.4V
28 1.2V 29 1.7V 30 0.9V 31 4.5V 32 8.4V
37 1.8V 38 2.9V 39 3.5V 40 2.5V 41 GND
46 2.5V 47 3.8V 48 4.2V 49 4.2V 50 2.5V
IC202 (REG.) IC681 (REG.)
Pin-1 7.8V 2 GND 3 5.0V Pin-1 11.0V 2 GND
IC3401 (MTS/AUDIO CONTROL)
Pin-1 4.2V 2 4.2V 3 4.1V 4 4.1V 5 4.5 V
10 4.1V 11 4.0V 12 5.3V 13 4.1V 14 1.3V
19 9.2V 20 NC 21 4.0V 22 4.1V 23 3.5V
28 1.7V 29 4.1V 30 4.1V 31 1.7V 32 4.0V
37 4.1V 38 0V 39 4.1V 40 4.1V 41 4.2V
46 NC 47 4.2V 48 4.1V
IC501 (VERT. OUT)
Pin-1 2.5V 2 28.5V 3 2.2V 4 GND 5 14.7V
IC801 (CPU)
Pin-1 4.5V 2 4.4V 3 5.0V 4 5.0V 5 GND
10 2.5V 11 0V 12 0V 13 5.0V 14 3.5V
19 0V 20 0V 21 0V 22 0V 23 0V
28 4.8V 29 0V 30 GND 31 4.8V 32 4.9V
IC802 (MEMORY)
Pin-1 GND 2 GND 3 GND 4 GND 5 5.0V
Q111 Q171 Q1902 Q261 Q431 Q432 Q527
B 1.2V B 2.2V B 4.9V B 2.5V B 0.3V B -0.1V B 0V
C 4.5V C 0V C -0.1V C 0V C 19.5V C 130.3V C 4.8V
E 0.5V E 2.8V E 5.0V E 3.1V E 0V E 0V E 0V
Q651 Q652 Q654 Q661 Q662 Q663 Q681
B 0V B 26.4V B 9.9V B 6.9 V B 30.2 V B 0.6V B 0.7V
C 9.9V C 27.0 V C 9.3V C 30.2 V C 0V C 30.2V C 0.1V
E 0V E 27.1 V E 9.2V E 6.3V E 30.3V E 0.4 V E 0V
IC201-pin19 IC201-pin20 IC201-pin21 IC201-pin23
<R out> <G out> <B out> <V drive>
4.8Vp-p 1.0Vp-p
4.8Vp-p 4.6Vp-p Vert.
IC201-pin46 IC201-pin28 IC501-pin5 IC801-pin17
<Video out> <FBP in> <Vert. out> <Vert. sync>
1.4Vp-p
2.6Vp-p Horiz. 5.2Vp-p
4.7Vp-p Horiz. 47Vp-p 51.2Vp-p Vert. 5.0Vp-p Vert.
1000Vp-p
Q432-C Q613-D
<Horiz. out> <Power out>
376Vp-p
1020Vp-p Horiz.
1000Vp-p
(On the CRT Board)
Q701 Q711 Q721 Q741 Q751
B 2.6V B 2.6V B 2.7V B 0.7V B 9.0V
C 148.8V C 147.6V
C 144.5V C 0V C 0V
E 2.5V E 2.5V E 2.6V E 1.4V E 8.9V
Q701-C Q701-B Q711-C Q711-B
<B-out> <B drive> <R-out> <R drive>
4.6Vp-p
88.0Vp-p 4.5Vp-p 94.0Vp-p
6 11.7V 7 17.7V 8 9.0V 9 N.C.
6 N.C. 7 4.1V 8 N.C.
6 2.9V 7 0V 8 5.0V 9 2.3V
15 1.7V 16 1.6V 17 0V 18 8.3V
24 2.5V 25 5.1V 26 2.7V 27 0.9V
33 GND 34 GND 35 GND 36 3.3V
42 2.6V 43 5.0V 44 2.8V 45 2.6V
51 2.2V 52 1.9V 53 2.4V 54 3.2V
3 5.0V
6 4.4V 7 GND 8 4.1V 9 4.0V
15 1.3V 16 NC 17 GND 18 4.5V
24 4.0V 25 4.1V 26 4.1V 27 4.1V
33 4.1V 34 4.1V 35 NC 36 4.1V
42 NC 43 4.1V 44 4.1V 45 4.2V
6 26.7V 7 2.5V
6 1.9V 7 2.7V 8 5.0V 9 4.2V
15 2.8V 16 0V 17 4.8V 18 4.1V
24 0V 25 0V 26 0V 27 4.9V
33 NC 34 0V 35 5.0V 36 5.0V
6 5.0V 7 GND 8 5.0V
Q611 Q612 Q613 Q625 Q641 Q642
B 3.9V B 3.9V G 4.3V B 0.4V B 0V B 0.7V
C 29.7V C 0 V D 325.0V C 3.9V C 0.3V C 0 V
E 4.3V E 4.3V S 0V E 0V E 0.1V E 0V
Q693 Q818 Q861 Q871 Q881 Q886
B 17.3V B 0V B 4.4V B -0.2V B -0.4V B 0V
C 30.2V C 8.9V C 4.4V C 4.8V C 4.1V C 0.1V
E 17.2 V E 0V E 5.0V E 0V E 0V E 0V
IC201-pin27 IC201-pin40 IC201-pin44
<H drive> <Selected V out> <Internal V in>
1.4Vp-p 1.7Vp-p 1.4Vp-p
6.5Vp-p 2.3Vp-p Horiz. 2.5Vp-p Horiz. Horiz.
IC801-pin18 Q431-C Q432-B
<Horiz. sync> <Horiz. drive> <Horiz. out>
28.4Vp-p
5.0Vp-p 5.5Vp-p Horiz. 50Vp-p 58.4Vp-p Horiz.
Q721-C Q721-B
<G-out> <G drive>
4.9Vp-p
118.0Vp-p
C7SE