Schematic Diagram - Main Board (1/2); Schematic Diagram - Main Board (2/2) - Sony XR-L240 Service Manual

5-4. SCHEMATIC DIAGRAM – MAIN Board (2/2) – •
C411 R410
0.0015 12k
1
C160 C412
C164
2.2 2.2
0.01
50V 50V
C410
1
50V
2
INPUT SELECT,
ELECTRICAL
VOLUME
IC400
LC75421M
3
4
C420
C165
5 1
0.01
50V
6
C422
7 2.2
50V
C400 C161
C403 22 2.2 C421 R420
470p 10V 50V 0.0015 12k
8
9
D450
MTZJ3.9B
(Page 20)
10 C622
R622
2.2
2.2k
50V
B14
11
12
13
14
15
16
•
See page 24 for IC Block Diagram. Refer to servicing note (page 2) for discrimination of TYPE A/B.
R411
6.8k
C414
0.1
C415 0.1
C416 1 50V
C450 R450
2.2 220
50V
C440 R458
Q450
10p 47k
DTC314TK
MUTING
Q451
DTC314TK
C441 R459
10p 47k MUTING
C451 R451
2.2 220
50V
C452 R452
2.2 220
50V
Q452
C442 R460
C426 DTC314TK
10p 47k
1
MUTING
C424 50V
0.1 C402
C401 47
0.1 16V Q453
C443 R461
DTC314TK
R421 10p 47k
6.8k C453 MUTING
2.2 R453
50V 220
R401
10
Q733
DTB113ZK
Q620
D622 R620
PDTA114EK
1SS133 47
D620
Q620,621 R621
MTZJ7.5C
MUTING 10k
CONTROL
SWITCH C621
1
Q734
2PD601AR
C620
Q621 47
PDTC144EK 16V
C750
0.1
D750
1SS355
Q750
2PB709AR
R753
B+ SWITCH
100
Q651
2PD601AR
R751
R752 47k
27k
A1
Q651,652
BATTERY
DETECT
IC500
TA8272H (TYPE A)
POWER AMP
TDA7386 (TYPE B)
(TYPE B)
GND
C502
R500
10
1k
E8 16V
STBY
∗
C507
10 16V (TYPE A)
VCC2
47 16V (TYPE B)
C501
∗
R502 0.1
47k (TYPE A) GND
R454 C454
10k 0.22 10k (TYPE B) C507
∗
∗ RIPPLE
R503
C464
2.2k (TYPE A)
470p
22 (TYPE B)
FL IN
(TYPE B)
FR IN
C504
0.01
(TYPE A)
R502 R503
∗ ∗ (TYPE B)
E2 BEEP
C456
GND
0.22 C504 C505 C506
∗
0 0.047
(TYPE B)
GND
(TYPE A)
R455
10k
VCC1
C500 C503
0.1 10
C467
16V
470p
MUTE
R456 C458
10k 0.22
GND
R501
10k
E9
∗
C506
0.022 (TYPE A)
1 (TYPE B)
R457 C460
10k 0.22
Q730
2SD1760
D720 C721
+8.5V REGULATOR
1SS355 0.047
Q731
2PB709AR
Q733,734
Q721
TUNER R732 Q720 2PB709AR
470 R730 PDTA124EK
B+ SWITCH
10k
C720
R721
1
2.2k
50V
R731
Q731,732
2.2k
REGULATOR
CONTROL Q720-722,725
SWITCH B+ SWITCH
Q732
C733
PDTC114EK
470p
C734 C732
C730
22 R733 100 D731 C731 R850
10
25V 27k 10V MTZJ9.1C 0.01 0
16V
R644
100k
Q741
2PD601AR
R81
100k
RESET SIGNAL
GENERATOR
IC2
PST3443UL
C743 C742 C740
C81
C82 0.047F 100 10
0.1
0.1 5.5V 10V 16V
R810
100k
R651 D650 R650
100k MTZJ18B 1k
Q650
PDTC114EK
BATTERY
DETECT
Q652
PDTC144EK
D651 R652
MTZJ7.5C 1k
21 21
D500
11ES2
TAB
FL-
FL+
RL-
RL+
CN700
RL IN 16P
(POWER)
FL+
GND
FL-
RR IN RL+
RL-
RR+ RR+
RR-
FR+
RR- FR-
FR+
AMP
ANT
FR-
ACC
TEST
GND
L710
250µH
C710
D710
3300
1N5404TU
16V
D722
11ES2
Q722
D721 R851
2SA1428
11ES2 0
C722
3.3
50V
R720 R722 R723 R724
22k 2.2k 2.2k 2.2k
Q725
R853
PDTC114EK
0
Q740 D740
2SA1428 11ES2
R642 R640
47k 4.7k
Q740,741
+5V REGULATOR Q640
2PD601AR
R740 ACCESSORY
22k
CHECK
C640
R643 R641 D640
1
D741 C741 4.7k 47k MTZJ18B
50V
HZS6B2L 0.01
XR-L240
Ver 1.2
FRONT LCH+
FRONT LCH-
REAR LCH+
REAR LCH-
REAR RCH+
REAR RCH-
FRONT RCH+
FRONT RCH-
ILL IN
ANT REM
BATT ACC
BATT
GND
F901
10A
32V
REAR RCH+
REAR RCH-
BATT FRONT RCH+
FRONT RCH-
FRONT LCH+
ANT REM FRONT LCH-
GND REAR LCH+
ACC REAR LCH-
(CHASSIS)
(CHASSIS)