Schematic Diagram -Main Section (1/2) - Aiwa CDC-R237 Service Manual

CDC-R237
4-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) —
C101
ANT101
C125
L101
L102
D101
TP15
R101
JR108
Q101 C103 R103
C104
R102 C102
C105 R104
R105
Q105
Q106
JR520 R115
CON701
(Page 24)
Note:
• Voltage is dc with respect to
ground under no-signal conditions.
no mark : FM
( ) : MW/LW
< > : CD PLAY
∗ : Impossible to measure
• Refer to page 21 for Waveforms.
• Refer to page 30 for IC Block Diagrams.
TU101
R108
C108 JR515 JR110 JR116
R107
C110
C107 JR112 JR518 JR522 R128
JR111 C122
R132 R119
C120
Q102 C121
C112 R120
R111 R112
C113
Q103
C116 R129
R110
SFR101
C115
R109
R106
R130
R131
JR117 R114
JR114
JR109
R125
JR516
R116
JR517
C118 R118 C123 C124 JR510 R122
C119 TP5
R117
R121 JR512
TP6
Q108
Q109
TP9 TP10
R728 C710
R727
C709
R729 R730
R731
JR533 JR119
JR532
C731
C732
100p
IC B/D
IC151
TP151
JR523
R151
JR115 JR526 C154
X151
C151 C152
C109 C111
C153
D151
C155
C157
JR527 C156
R455 C453 R454
D451
JR103
C454
R453 JR102
Q451
TP19
R457 R456
JR503
TP13
R936 R935
D907
TP16
C921
X901
C923
C925 C924
C934
C927
C928
R914
R938 C929
SW901
TP7
TP27
C930
TP21
TP26
C933
TP22
26 26
TP1
R431
C431
R403 R405
R401
C411 C433 R433
C451
R451 C403
C401
TP2
IC B/D
IC401
JR508
TP3
C434 R434
TP4
C432
C402
C415 R432
C412
C417
C404 R418 C418
R452 C452
R402 R404 R406
JR509
TP23 TP14
TP24
R946
TP25 TP17
JR504
R947
IC901
JR552
10k
R945
D906
Q806
R951 R950 C809
Q803
R949
R816
C811
JR105
(Page 27)
JR120
JR531 R918
R919
JR529
R810
Q807
R808
C804
R809
Q808