Sharp CD-BA250H Service Manual page 25

SOR
R603
1K
24
CLK
+B
VDD
23
C603 C609
VREF 22/50 1/50
22
R605
C607
10K
0.1
ROUT
21
C605
R607
0.15
3.9K
RBASS
20
RTRE
19
C611
C613
0.0027
RIN 1/50
18
C615
RSEL0 4.7/50
17
C617
R4 1/50
16
C619
R3 1/50
15
C621
1/50
R2
14
C623 R609
1/50 1.2K
R1
13
C625
0.0056
R623
220K
R622
220K
: MUTING
R137
220K
REC_R
R139 R138
10K
10K
0.7 V
0.7 V
Q107 Q108 +B
KTC3199 GR KTC3199 GR
0 V
BIAS
11.6 V
C125
R158
22/50
220
17 16 15 14 13
–
56K
+
Hich=CHROME
+
56K
–
Q109
0 V
8 9 10 11 12 KTA1266 GR
SWITCHING
C126
22/50
C132
47/25
0 V
0 V
0 V
C138
R134
0.0082
10K
(PP)
ORD/
.
7
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RECORD SIGNAL
CD SIGNAL
+B
+B
+B
1
0 V
3
2 0 V
Q110
KRC104 M
8 9
Figure 25 SCHEMATIC DIAGRAM (4/9)
FM SIGNAL
PLAYBACK SIGNAL
VIDEO SIGNAL
+B
10
– 25 –
CD-BA250H/CD-BA2600H
FFC701
CNP701
1
RDS-RST
1
RDS-RDDA
2
RDS-RDCL
3
RDS-READY
4
TUN_SM
5
CE
6
DO
7
DI
8
CLK
9
D_GND
10
T_BIAS
11
T_T1/T2
12
REC/PLAY
13
SMUTE
14
SPA_SIG
15
A_GND
16
M_+12 V
+B
17
–15 V
-B
18
–20 dB
19
M_GND
20
SW_5 V
21
UN_SW_5 V
22
SP_DET
23
SP_RLY
24
VF1
25
–VP
26
VF2
27
P_IN
28
28
RDS_READY
22
RDS_RDCL
23
RDS_RDDA
24
RDS_RST
25
TUN_SM
26
DO
27
CE
28
CLK
29
DI
30
TUN_R
31
(A_GND)GND
32
TUN_L
33
A+10 V
34
(D_GND) GND
35
R692
33K
L-CH
C690
R690
390P JK690
6.8K
VIDEO/AUX
R691 C691
IN
6.8K 390P
R-CH
R693
33K
D690
DS1SS133
D691
DS1SS133
CHASSIS
C693
0.001
11 12