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