BA7E
Component Location
Waveforms & Voltages
(On the Main Board)
Q631
B 13.1V
C 13.2V
E 12.6V
Q1002
B 4.1V
C 4.7V
E
0V
Q111
B 1.1V
C 7.8V
E 0.3V
IC001 (AUDIO AMP.)
Pin-112.82V
2
0V
3
GND
4
0V
5
2.9V
6
0V
7
13.4V
8
5.6V
9
5.7V
10
GND
11
6V
12
5.7V
13
0V
IC802 (MEMORY)
Pin-1 GND
2
GND
3
GND
4
GND
5
5.0V
6
5.0V
7
GND
8
5.0V
Q1001
B 4.1V
C 4.7V
E
0V
IC501 (VERT. OUT)
Pin-1 2.4V
2
26.6V
3
14.5V
4
GND
5
3.4V
6
26.3V
7
2.4V
Q001
B 4.17V
C 4.66V
E
0V
IC201 (IF/VIDEO/CHROMA)
Pin-1 2.0V
2
0V
3
3.1V
4
0V
5
2.3V
6
0V
7
2.3V
8
5.0V
9
2.5V
10
3.8V
11
8.2V
12
2.6V
13
2.6V
14
2.7V
15
0V
16
2.2V
17
2.3V
18
1.7V
19
5.1V
20
2.7V
21
0.9V
22
0V
23
5V
24
5.6V
25
0V
26
4.8V
27
4.1V
28
4.3V
29
5V
30
0V
31
5V
32
5V
33
1.6V
34
2.6V
35
5V
36
4.7V
37
0V
38
0V
39
0V
40
0V
41
3.2V
42
0V
43
4.5V
44
0V
45
2.5V
46
0V
47
0V
48
2.6V
49
2.5V
50
2.8V
51
2.5V
52
2.5V
53
2.5V
54
2.6V
55
5V
56
2.8V
57
2.6V
58
2.3
59
2.5V
60
2.3V
61
1.8V
62
0V
63
2.8V
64
2.8V
IC202 (REG.)
Pin-1 6.7V
2
GND
3
5.0V
IC611 (REG.)
Pin-1 11.5V
2
9V
3 GND
4
0V
(On the CRT Board)
1.7Vp-p
Horiz.
50Vp-p
Horiz.
47Vp-p
Vert.
2.2 Vp-p
3.6 Vp-p
4.0 Vp-p
0.9 Vp-p
48.4 Vp-p
41.0 Vp-p
63.2 Vp-p
IC201-pin21
<H drive>
IC201-pin12
<R out>
IC201-pin13
<G out>
IC201-pin14
<B out>
IC201-pin56
<Internal V in>
IC501-pin5
<Vert. out>
Q432-B
<Horiz. out>
IC601-pin3
<Power out>
444 Vp-p
Q431-C
<Horiz. drive>
3.8 Vp-p
Vert.
0.9 Vp-p
IC201-pin17
<V drive>
1.4Vp-p
Horiz.
IC201-pin60
<Video out>
1.8 Vp-p
1000Vp-p
Horiz.
4.7 Vp-p
IC201-pin44
<FBP in>
1000Vp-p
Horiz.
1220 Vp-p
Q432-C
<Horiz. out>
IC681 (REG.)
Pin-1 12.9V
2
GND
3
5.0V
IC3401 (MTS)
Pin-1 4.1V
2
4.2V
3
4.1V
4
4.1V
5
4.1 V
6
3.9V
7
GND
8
4.1V
9
4.1V
10
4.1V
11
4.2V
12
5.1V
13
4.1V
14
1.3V
15
1.3V
16
NC
17
GND
18
3.8V
19
8.2V
20
NC
21
4.1V
22
4.1V
23
4.1V
24
4.1V
25
4.1V
26
4.1V
27
4.1V
28
1.8V
29
4.1V
30
4.1V
31
1.7V
32
4.0V
33
4.1V
34
4.1V
35
NC
36
4.1V
37
4.1V
38
4.1V
39
4.1V
40
4.1V
41
4.2V
42
NC
43
4.1V
44
4.2V
45
4.2V
46
NC
47
4.2V
48
4.1V
IC1001 (AV SELECTOR)
Pin-1: 4.5V
2:
0.3V
3:
3.5V
4:
3.5V
5:
3.8V
6:
4.0V
7:
4.59V
8:
4.3V
9:
8.9V
10:
8.9V
11:
4.0V
12:
0.3V
13:
3.4V
14:
4.0V
15:
0.3V
16:
8.9V
175Vp-p
154Vp-p
162Vp-p
Q701-C
<B-out>
Q721-C
<G-out>
Q711-C
<R-out>
Q741
B
0.7V
C
1.4V
E
0V
Q672
B 0.66V
C 0.1V
E
0V
Q1006
B 3.5V
C 9.0V
E 2.9V
Q671
B 23.7V
C 24.4V
E 24.4V
Q850
B
0V
C 9.0V
E
0V
Q887
B
0V
C
5V
E
0V
Q652
B 0.6V
C
0V
E
0V
Q431
B
0.3V
C
14V
E
0V
Q461
B 12.4V
C 13.1V
E
0V
Q462
B
0.6V
C 12.4V
E
0V
Q674
B
0V
C 11.3V
E 0.5V
Q651
B
0V
C 13.2V
E 13.2V
Q481
B 0.9V
C 4.6V
E 0.4V
Q886
B 0.7V
C
0V
E
0V
HH
HH
HH
HH
HH
H
HH
HH
H
H
H
H
HH
HH
H
HH
HH
H
HH
H
H
HH
HH
HH
HH
H
HH
H
HH
H
HH
H
HH
HH
HH
HH
HH
H
HH
HH
HH
HH
H
HH
H
H
HH
HH
H
H
H
HH
HH
HH
HH
H
HH
HH
H
H
HH
HH
HH
HH
HH
HH
H
HH
H
HH
1LG4B10Y0030B
T4AL250V
F601
IC601A
1LG4B10Y0030A
1LG4B10Y00300
+B(140V)
35
40
45
50
55
5
10
20
30
25
15
60
??? ***
D681A
IC611A
E
Q701A
R
704
R714
R724
L702A
R732
K7D1
K7M
K701
Q721
E
Q721A
E
Q711A
Q701
1
5
K7P
1
K7Q
C731
Q711
J702
C710
J705
L701
L711
L721
J703
J704
J701
R715
R716
R717
C742
R713
R723
R703
R018
R019
E
Q462
R020
R021
R023
R603
C3451
R605
C3452
R606
L461
C1902
R610
E
Q671
R611
E
Q1902
R422
R423
C001
C002
C003
C004
C006
C007
C008
C009
R431
C202
C010
C204
SW1901
SW1902
SW1903
SW1904
SW1905
SW1906
D593
D1901
D1902
C605
C606
C607
C608
X211
C225
C226
C610
C611
C805
C612
C614
R651
C615
C616
C617
R654
C231
R656
A101
C621
C630
R470
C434
C628
R471
C629
C436
R473
R280
R474
C244
C245
R476
C246
C247
C248
R479
C249
C632
R671
R673
C250
R484
R485
KE-1
KE-2
D003
KG-2
KG-3
C652
C463
C465
C468
C850
C469
IC001
C661
D601
C663
C664
C471
33
64
1
32
IC201
IC202
C863
D616
C291
C299
IC601
C491
D438
1
4
5
8
IC802
D249
IC681
1
9
10
18
T611
C1001
C1002
C1003
C1004
C699
C1006
C1007
C1009
C893
D461
C1021
C1022
D465
R502
D467
R503
D468
R504
R507
R508
K1101
D470
C1031
C1033
D476
D671
1
5
KX
D486
X161
C104
3
2
1
IC661
C106
D887
C501
C502
C503
C504
C505
C506
C122
R355
TP-A
TP-B
R357
TP-E
F601A
TP-M
F601B
1
6
KDY
C355
RL601
D102
C358
R592
R594
D501
D502
E
Q601
C3401
C3404
L605
C3408
IC501
E
Q431
C3411
A1901
C3412
C3413
C3414
C3416
C3417
C3418
C3424
L431
L432
C3427
C1101
VA601
C1102
C1103
D352
D353
C3432
C3436
C3439
C1111
C1112
C510
C513
L101
C613
R510
C624
JP603
K1303
JC21
JC22
R612
C012
R614
JD11
L681
L671
D631
D651
JC32
R658
JF44
D441
D421
D439
JP414
D485
R636
R635
JE511
R213
R830
R228
L204
JG62
R352
L201
1
5
KP
1
KQ
T471
JB32
R103
R477
R505
JA62
JA65
JB63
JB64
1
KSP
R009
JA63
JA61
JA64
JD51
JE45
JE46
JE47
JF42
JF43
JF41
R1112
R1114
R433
R434
R475
R604
R618
R617
R608
R628
R629
R681
R488
JG61
JG60
JG51
JE57
JG66
L205
JG68
R230
D357
JF60
JE53
JE42
JE64
JE52
JF54
R1014
JB31
R699
JC31
L604
JC41
JF11
D466
D469
JG610
JP203
JD52
C101
C215
C618
C619
C432
C433
D1901A
D1902A
L1901
JA31
R601
JA51
C486
JA41
K1302
JF61
R115
SW601
KM
T431
JF46
L1004
X801
R424
R108
IC601A
R657
C631
C651
C671
C681
C475
JG67
R613
L631
L611
L651
C672
JD31
JD32
JD33
JD42
JD47
JE41
E
Q651
JE510
JE59
JG65
D462
Q461
R466
JE21
JF21
R509
JE22
JF12
R462
C1023
R619
JC62
JE55
JD67
R3402
R3401
JC63
JC61
D605
D606
D607
D627
JG41
JD46
R1009
R1011
JH512
JH56
JH55
JH51
JF52
JH52
JH53
JG512
JH57
JH66
JD63
JD64
JG59
C210
R211
E
Q631
C233
D617
JF48
JE51
JD55
JG69
JD43
R621
R631
C470
D604
R469
C005
C682
D611
R663
L661
R421
JF62
JA21
JH54
JH64
X202
L202
JG511
JG53
JG52
JG58
JF55
JF57
JF58
JF47
JG63
JG64
JH62
JD65
JB61
JA66
JH513
JH41
C670
C627
JH61
JH63
JH67
JE43
JD53
JD54
JP001
JD56
JH65
C011
R634
C622
C1913
JA52
JC64
JD59
JG513
JF56
D002
JB62
JD58
D608
R607
JA42
R884
C420
C423
C424A
C424
C425
C442
C441
R677
R609
R481
R481A
R683
R620
R290
JD57
R655
R633
C601
C437
JD41
R690
R680
JG510
D661
3
4
2
1
D610
D681
JD66
R886
JD62
R887
JE61
R818
JE62
R885
R839
R844
R840
JD61
JE63
JC43
JH43
R506
D602
R435
C609
L601
Q461A
L462
L442
Q432
Q432A
L441
R602
IC501A
IC001A
PS601
R615
IC611
JD48
JD45
JE44
D668
R441
R442
JB65
JP681
D103
R501
D603
R351
TP317
TP318
A30C5
A30C5
L441H2
R602H2
T471H9
KDYH6
L442H1
T611H7
R435H2
T471H7
C609H2
T611H14
L462H2
Q432AH2
T471H2
T611H11
L442H2
Q432AH3
PS601H2
IC001AH3
T611H2
L601H3
IC501AH4
Q432HC
IC501AH2
T611H16
T611H15
T611H3
Q432AH1
L601H1
Q432AH4
PS601H1
R602H1
T611H13
IC601AH1
Q461AH1
SW601H1
SW601H3
SW601H4
L601H4
Q432HB
IC501AH1
T471H8
T471H5
PS601H3
KDYH3
C609H1
T471H4
R435H1
T611H12
T611H5
T611H18
SW601H2
IC601AH3
KDYH1
Q432HE
T611H17
Q461AH2
T471H10
T611H6
L462H1
IC001AH1
IC601AH2
IC501AH3
L441H1
T471H6
IC001AH2
L601H2
T471H1
T611H8
L441H3
DIP
IC1002 (AV SELECTOR)
Pin-1: 4.0V
2:
2V
3:
3V
4:
2.5V
5:
2.8V
6:
2.0V
7:
0V
8:
4.3V
9:
8.8V
10:
0V
11:
8.9V
12:
0.3V
13:
2.0V
14:
2.0V
15:
2.0V
16:
8.9V
Q002
B
0V
C 0.7V
E
0V
Q003
B 13.2V
C 13.2V
E
0V
Q851
B
0V
C 9.0V
E
0V
Q1902
B 4.99V
C 4.99V
E
0V
Q632
B 0.65V
C 0V
E
0V
Q685
B 0.1V
C
5V
E
0V
Q684
B 0.63V
C
0V
E
0V
Q673
B 0.7V
C 0V
E
0V
Q1003
B 2.8V
C 3.1V
E
0V
Q701
B 2.6V
C 2.4V
E 1.41V
Q721
B 0.7V
C 1.4V
E
0V
Q711
B 0.7V
C 1.4V
E
0V
