Test Point Waveforms - Yamaha MDX-E100 Service Manual

A B
PRINTED CIRCUIT BOARD (Foil side)
1
MD MAIN PWB-A (TOP VIEW)
2
C1804
L1501
R1514
R1519
Q1500
R1532
C1704
C1501
R1708
R1712
Q1702
R1711
C1703
C1707
28 15
L1700
25 20
R1702
IC1701
3
C1702
L1701
R1403
1 14
5 10
R1415
R1413
C1715
R1402
R1416
R1705
R1709
R1419
R1710
R1421
R1706
R1423
R1208
C1204
4
C1210
R1212
C1207
R1219
R1223
R1210
C1616
5
6
C
Note : y ~ o
Connect an oscilloscope to the test points (y ~ o) through a
filter as shown below.
100K
test points
270P
R1808 R1805
7 5 1
Q1805
L1300
IC1300
C1802
8 10 14
Q1800
R1304
Q1400
C1408
R1801
C1805
R1406
3 1
R1400
Q1804
4 5
IC1801
C1411
R1422
C1409
R1420
1 8
R1425
IC1402
R1426
4 5
R1428
C1410
R1427
R1209
L1201
1
C1206
5
R1200
10
R1202 R1201
15
R1102
R1203
R1207 20
R1101
C1202 25
28
L1200
R1100
C1203
FLEXIBLE
MD PICKUP UNIT
PWB
D E
q @4
to : TEST POINT WAVEFORMS (See page E38/J36)
oscilloscope
MD MAIN PWB-A (BOTTOM VIEW)
BL
CW1903 2
D1300
CN1300
Q1300
2
Q1301
Q1303
TP1301
C1300
G D S
D
G D S
G
CHASSIS GND
TP1302
TP1303
TP1800
C1800
TP1204
R1809 R1105
14
13
EFMMON
1
(TP1201)
11
C1120
10
5
CHASSIS GND
GND TP1125
TP1135
(TP1125)
C1115
TP1113
C1117
4
TP1132
TP1128
TP1134 R1109 R1111
TP1133
TP1131
TP1126 TP1406
R1110
R1108
C1112 TP1127 TP1129
36 25
24
37 35 30
EOUT
(TP1129)
40 IC1101
20
45
15
48 5 10 13
FOUT
C1105
(TP1130)
1 12
TP1108
C1104 C1101 R1103
TP1109
TP1124 C1103
TP1107
TP1115 TP1102
TP1111
TP1110 TP1106
TP1137
1 2
RE BL
M902
MD SLED MOTOR
F
1
BL
MAGNET HEAD(32)
1
RECORD
1
TP1511
TP1411
TP1519 CN1501
C1803
TP1518
5 10 15 20 25
1
TP1515
1
TP1300 C1505
C1508 TP1516
TP1606 TP1509
TP1517
TP1507
TP1512
R1516
TP1500
C1608 R1522 TP1502
TP1514
R1535
TP1510
TP1504
D1301
TP1508
S TP1501 TP1503 TP1505
Q1302
R1707
TP1702
TP1410
R1404
1 2 3
C1700
TP1217
R1410
IC1702
TP1218
30 1
TP1701
R1401
TP1215
31 25 100
20 15 10 5
TP1415
C1701
35 TP1404
95
TP1405
IC1401
R1414
40
TP1278
TP1704
90
TP1414
45 TP1407 TP1706
TP1408
85
TP1601
TP1409
60 TP1413
55 65 70 75
50 81
TP1412
TP1600
51 80 R1429
C1205
TP1209 TP1207
TP1901
TP1201 TP1216
100 TP1212 TP1211
76
1 95 90 85 80 75
C1401
R1211
TP1402
5
70
R1217
TP1401
10
65
C1619
C1209
IC1201 15 14
15
60
C1208
TP1213
20
55
TP1200
C1610
8
21
R1222
25 30 35 40 45 51
TP1130 TP1203
26 50 30
TP1900 29
TP1208
TP1117
TP1214
TP1118 TP1210
TP1205
C1602 R1616
22
C1106 TP1206
7
TP1202
10 1
TP1112
C1613
C1603
6 5
TP1136
TP1119
TP1101
R1606
TP1100 28
IC1202 1
TP1103
TP1122
C1604
TP1104
TP1121
TP1116 TP1604
TP1105
11 15 16 20 TP1123
CW1901
SW1953
LEAD IN
R1904
SW1954
1
2
3
PLAY
4 R1903
5
SW1955
RECORD
R1902
SW1956
SW1952
LOADING
DISC MEDIA
R1901
WRITE PRO
M901
MD MECHANISM SWITCH PWB-B
MD SPINDLE MOTOR
G H
MDX-E100
28
CNW2002
28
TP1513
TP1521
TP1506
TP1522
R1513
TP1524
28
TP1525
C1502
R1512
TP1523
TP1700
TP1703
TP1705
C1709
C1713
C1712
C1710
C1716
18
19
C1711 21
20
16
2
CN1602
1
15
6
7
9
TP1403
5
17
1
C1400
23
TP1400
22
TP1603
TP1602
TP1607
12
2
1
CN1603
3
2
TP1801
TP1605
CN1604
2
1
8
1 2 1 2
RE BL RE BL
M903
MD LOADING MOTOR
E-41/J-39