Schematic Diagram - Main Section (1/2) - Sony CFD-E90 Service Manual

CFD-E90
6-13. SCHEMATIC DIAGRAM – MAIN Section (1/2) – • See page 36 for IC Block Diagram.
(1/2)
R145 R330
2.2k 100
R146
C134
220k
4.7
C110
50V
1 R143
50V 100k
Q125
2SC4081-T106Q
AF AMP
R147
1k
R247
1k
C210
1
50V
Q225
2SC4081-T106Q
R243 AF AMP
100k
R246
220k
R332 R245
470 2.2k
C334
470
10V
R350 R352
4.7k 10k
R353
C350
R351 10k
22
10k
10V
C932
220
D930 R930
16V
1SS355TE-17 1k
R931
1k
Q957
KTC3203Y-AT
CD
+3.3V REGULATOR
C960
0.1
(Page 31)
C331
C332
1000
0.01
10V
ELECTRICAL
VOLUME
IC302
PT2257
C234
4.7
50V
C122 C222 D322
1000p 1000p 1SS355TE-17
Q958
R959 R958 DTA143ZUA-T106
100 220
C959
R960 D957 C957
100
10k UDZSTE-173.9B 0.01
10V DTC143ZUA-T106
D920
R922
KDS121-RTK
R920 220
470
C920
D921 R923
10
UDZSTE-175.1B 220
50V
30 30
C133
4.7
R126 C124
50V
470 0.022
R125 R149
2.2k 1k
R128
470
R127
10k
Q122
2SC4081-T106Q
C126
MEGA BASS
1
C125
CONTROL 50V
2200p
C225
R227 2200p
10k Q222
C226
2SC4081-T106Q
1
MEGA BASS 50V
CONTROL
C233
4.7
R225 R249 R228
50V
2.2k 1k 470
R226 C224 R240 R140
470 0.022 2.2k 2.2k
CN313
11P
D-GND
S-GND
3.3V
P-CON
A-MUTE
AC-HI
MT-GND
CD-6V
M-BASS
Q958,959
CD POWER
ON/OFF
L-CH
CONTROL
A-GND
Q959 R-CH
CN311
CN331
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
( ) : CD PLAY
6V
9V
(Page 35)
(Page 35)
3P
6P
M901
(CAPSTAN/REEL)
S903
(MOTOR ON/OFF)
S902
(TAPE PLAY)