Read Sharp CD-BA250 (serv.man6) Service Manual online
– 25 –
CD-BA250H/CD-BA2600H
Figure 25 SCHEMATIC DIAGRAM (4/9)
7
8
9
10
11
12
0 V
0 V
0 V
0 V
11.6 V
11.6 V
0 V
0 V
0.7 V
0.7 V
0 V
2
1
3
CD SIGNAL
VIDEO SIGNAL
RECORD SIGNAL
PLAYBACK SIGNAL
FM SIGNAL
22
23
24
25
26
27
28
29
30
31
32
33
34
35
TO DISPLAY PWB
P29 12-C
CNS701
TO TUNER SECTION
P30 1-F
1
28
24
23
22
21
20
19
18
17
16
15
14
13
CLK
VDD
VREF
ROUT
RBASS
RTRE
RIN
RSEL0
R4
R3
R2
R1
+
+
–
17
16
15
14
13
12
11
10
9
8
Vcc
ALC
GND
ALC
RIPPLE
Nor/CrO2
+
+
–
–
Hich=CHROME
56K
56K
CHASSIS
R-CH
L-CH
RDS_READY
RDS_RDCL
RDS_RDDA
RDS_RST
TUN_SM
DO
CE
A+10 V
TUN_L
TUN_R
DI
CLK
(D_GND) GND
(A_GND)GND
SW_5 V
UN_SW_5 V
SP_DET
SP_RLY
VF1
–VP
P_IN
VF2
RDS-READY
RDS-RDCL
RDS-RDDA
RDS-RST
–20 dB
M_GND
A_GND
D_GND
–15 V
M_+12 V
SPA_SIG
SMUTE
REC/PLAY
T_T1/T2
T_BIAS
CLK
DI
TUN_SM
CE
DO
8
7
6
9
13
5
2
4
3
14
1
12
11
10
15
20
19
17
18
24
23
22
16
25
21
26
27
28
REC_R
+B
+B
+B
+B
+B
+B
+B
-B
: MUTING
BIAS
SWITCHING
CNP701
R622
220K
R623
220K
C133 22/50
C134 220/10
C625
0.0056
R609
1.2K
C603
22/50
C611
0.0027
R607
3.9K
R141 4.7K
Q110
KRC104 M
R136 220K
C135 0.022
C601 220/16
R603
1K
R690
6.8K
R693
33K
R691
6.8K
R692
33K
C693
0.001
D691
DS1SS133
C690
390P
D690
DS1SS133
C691
390P
R130
1
.5K
R158
220
R139
10K
Q107
KTC3199 GR
R138
10K
Q108
KTC3199 GR
C138
0.0082
(PP)
C137
0.047(ML)
R132
100
C127 0.022
C126
22/50
R140 47K
Q109
KTA1266 GR
C128 0.022
C130 0.0033
C140 47/25
Q111
KTC3203 Y
R142
82
C139
0.039(ML)
C131 47/25
C129 0.0033
R133 100
C125
22/50
R131
1
.5K
C132
47/25
R145
4.7
R137
220K
R143 47K
L103 330
µ
H
R134
10K
R144 22K
R135 10K
C623
1/50
C621
1/50
C619
1/50
C617
1/50
C615
4.7/50
C613
1/50
C605
0.15
C607
0.1
C609
1/50
R605
10K
FFC701
JK690
VIDEO/AUX
IN
ORD/
.
SSOR
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