Sharp CD-BA300 Service Manual page 22

CD-BA300
R_CH
1 1
A_GND
2 2
L_CH
3 3
A
CD_GND
CNP7
4 4
CD_+B
TO CD
5 5
SERVO PWB A_+B
6 6
P17 12-C
BI11
CNS11
B
R_CH
1
A_GND
2
L_CH
3
A_+10
4
+5V
5
GND
CNP902
6
TO
–15V
POWER PWB
7
P22 1-F SP_DET
8
C SP_RLY
9
M_12V
10
CNS902
+B (9V)
1 1
VF1
2 2
D
VF2
3 3
–VF
4 4
CNP903
GND
5 5
TO
+B2 (18V)
POWER PWB
6 6
P23 8-G
P_IN
7 7
BI903
CNS903
E
MECHA BASE
CNP101
T1_R
1
A_GND 2
T1_L
3
TAPE1
PLAYBACK HEAD
F
M_GND
1
ERASE HEAD
2
ERASE
3
T2_R2
4
A_GND
5
T2_R1
6
T2_L1
T2_L2 7
TAPE2
CNP102
RECORD/
PLAYBACK HEAD
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
1
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+B
+B
+B
Q605
KTC3199 GR
R621
2.2K
C635
0.001
R609
330
R622
2.2K
R610
330
+B
-B
+B
C618
1/50
-B
R850
+B
3.3(1/2W)
+B
+B
R855
GND
3.3 (1/2W)
M_GND
KIA7810AP
+B
C109
R114
0.047
R113
10K
9.3V
8.6V
Q109
R112
CHASSIS
9.3V
KTA1266 GR
15K
C102
560P
R102
1K
R101
1K
Q104
C101
2SC1845 F
560P
R108
0V
0.7V
47K
C106
180P
0V
0V
R106
3.3K
0.7V
0V
Q106
2SC1845 F
Q105
2SC1845 F
0V
0.7V
0V
R105
3.3K
0V
0.7V
C105
180P
R103
0V
2.2K
Q103
2SC1845 F
2 3
Figure 22 SCHEMATIC DIAGRAM (3/10)
+B
C607
0.1(ML)
C613
R607
C611
10/50
10K
0.0027
R605
3.9K C619
1/50
R615
C621
2.2K
4.7/50
C623
C615
1/50
0.001
C625
1/50
C616
C627
0.001
1/50
0.0033
R616
2.2K
R608
R617 1.8K
10K
R619
R620
22K
22K
+B
+B
Q850
KTC2026
+B
+B
M_GND
ZD851
Q851
DZ2.4BSB
A_+10V
1 3
2
L A_GND
R155
150
Q110
KRC104 M
C153
2 3
10K
0V 100/16
3.4V
1
0V
1
3
0V
3.4V
2
Q111
KRC104 M
R
C118 C120
R120
0.033 560P
56
C116
L 100/25
R122 R124
C122
100K 3.9K
1/50
R118
1K
C114
330P
0V
24 23 22 21 20
–
+
112K
0V
Hich=T1
112K
– +
1 2 3 4
C111
330P
R117
C113
1K
330P
0V
R121 R123
100K 3.9K
C115 C121
0V 100/25 1/50
C117 C119
R119
0.033 560P R131
56
33K
R111 15K
IC101
PLAYBACK AND RECORD/PLAYBACK AMP.
4
– 22 –
1
24
DI CLK
+B
CE
VDD
2
23
CCB
VREF
VSS
3 INTERFACE + 22
–
C610
LOUT ROUT
4 21
0.1(ML)
C609
0.1 LBASS RBASS
5 20
(ML)
LTRE RTRE
6 19
IC601
LIN RIN
7 18
LC75341
LSEL0 RSEL0
8 17
AUX
L4 R4
9 16
L3 DECK R3
10 15
L2 R2
TUNER
11 14
L1 R1
CD
12 13
C629
1/50
+B
Q821
+B
AN78L05
+B
1 3
2
Q852 KIA7805AP
+B
1 3
2
C859
0.047(ML)
R156
R
REC_R
220K
R153
R154
0V
0.7V
10K
10K
0.7V
Q122
Q121
0V
KTC3199 GR
KTC3199 GR
C136
0.022
C134
22/50
19 18 17 16 15 14 13
–
+
56K
IC101
Hich=CHROME
AN7345K
56K
+
–
5 6 7 8 9
10 11 12
C133
22/50
C141
47/25
R125
5.6K
R145
10K
C123
0.0022
5 6
+B
R601 1
R602 1
R603 1
C602
C608
22/50
0.1(M
C612 R60
3.9
0.0027
C620
1/50
C622
4.7/50
C624
1/50
C626
1/50
C628
1/50
C630
1/50
C642
0.0033
+B
+B
+B
+B
+B
R1
22
0V
0V
R158
220
C
0.03