Sony XR-L240 Service Manual ▷ View online
XR-L240
21
21
R651
R853
C741
R643
R642
Q734
C731
R721
R722
R723
R724
D721
C454
C456
C458
C460
C450
R450
R452
R454
D622
R459
R461
R460
R458
C421
C422
C424
C423
C425
R420
R421
C732
C403
C426
C161
C400
D750
R752
R622
C622
Q621
C620
C165
C160
C412
C414
C453
R453
R621
R620
C621
Q620
R751
Q651
C750
Q652
C733
R733
Q733
C452
C451
R451
Q452
Q453
R457
Q451
Q450
R500
R501
R732
R730
R731
Q720
Q732
R650
D650
C742
C743
Q741
R740
R644
Q725
R720
Q721
C721
D720
C720
D740
C640
R641
D640
R401
C164
C710
D710
Q722
Q730
C730
D731
D620
D450
C82
C81
Q740
Q640
R753
Q750
C722
C410
C420
C413
C401
C464
C465
C466
C467
R81
C740
R640
D501
D500
D502
D503
D504
D506
D507
D722
C440
C441
C442
C443
D505
C402
IC400
Q731
C734
IC2
Q650
R652
D651
D741
L710
C415
C416
R456
R455
R850
R851
R810
R410
C411
R411
IC500
C502
C507
C501
C506
C500
C503
C505
R503
R502
C504
C504
F901
CN700
100k
0
0.01
4.7k
47k
2PD601AR
0.01
2.2k
2.2k
2.2k
2.2k
11ES2
0.22
0.22
0.22
0.22
2.2
50V
50V
220
220
10k
1SS133
47k
47k
47k
47k
0.0015
2.2
50V
50V
0.1
0.033
0.1
12k
6.8k
100
10V
10V
470p
1
50V
2.2
50V
50V
22
10V
1SS355
27k
2.2k
2.2
50V
50V
PDTC144EK
47
16V
0.01
2.2
50V
2.2
50V
50V
0.1
2.2
50V
50V
220
10k
47
1
PDTA114EK
47k
2PD601AR
0.1
PDTC144EK
470p
27k
DTB113ZK
2.2
50V
50V
2.2
50V
50V
220
DTC314TK
DTC314TK
10k
DTC314TK
DTC314TK
1k
10k
470
10k
2.2k
PDTA124EK
PDTC114EK
1k
MTZJ18B
100
10V
10V
0.047F
5.5V
2PD601AR
22k
100k
PDTC114EK
22k
2PB709AR
0.047
1SS355
1
50V
11ES2
1
50V
47k
MTZJ18B
10
0.01
3300
16V
1N5404TU
2SA1428
2SD1760
10
16V
MTZJ9.1C
MTZJ7.5C
MTZJ3.9B
0.1
0.1
2SA1428
2PD601AR
100
2PB709AR
3.3
50V
50V
1
50V
1
50V
0.033
0.1
470p
470p
470p
470p
100k
10
16V
4.7k
11ES2
11ES2
11ES2
11ES2
11ES2
11ES2
11ES2
11ES2
10p
10p
10p
10p
11ES2
47
16V
LC75421M
2PB709AR
22
25V
PST3443UL
PDTC114EK
1k
MTZJ7.5C
HZS6B2L
0.1
1 50V
10k
10k
0
0
100k
12k
0.0015
6.8k
10
16V
0.1
0.1
10
16V
0.047
0.01
0
10A
32V
32V
16P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
E4
E1
E3
E8
E2
E9
B14
E7
E5
E6
E10
A1
GND
FRONT LCH+
REAR LCH+
REAR RCH+
FRONT RCH+
FRONT LCH-
REAR LCH-
REAR RCH-
FRONT RCH-
GND
ANT REM
ANT REM
ACC
ACC
BATT
BATT
∗
∗
∗
∗
FL-
FL+
RL-
RL+
RL IN
GND
RR IN
RR+
RR-
FR+
FR-
GND
VCC2
GND
RIPPLE
FL IN
FR IN
VCC1
GND
MUTE
VREF
R1
R2
R3
R4
R5
RSEL0
RIN
RTRE
RBASS1
RBASS2
RSB
ROUT
RFIN
RFOUT
RROUT
VDD
CL
L1
L2
L3
L4
L5
LSEL0
LIN
LTRE
LBASS1
LBASS2
LSB
LOUT
LFIN
LFOUT
LROUT
VSS
CE
DI
FL+
RL+
RR+
FR+
AMP
ANT
ACC
GND
FL-
RL-
RR-
FR-
ILL IN
TEST
BATT
(CHASSIS)
(CHASSIS)
STBY
MUTING
MUTING
MUTING
MUTING
INPUT SELECT,
ELECTRICAL
VOLUME
Q720-722,725
B+ SWITCH
+8.5V REGULATOR
Q731,732
REGULATOR
CONTROL
SWITCH
Q733,734
B+ SWITCH
TUNER
CONTROL
SWITCH
Q620,621
MUTING
GENERATOR
RESET SIGNAL
VSS
NC
VDD
VOUT
B+ SWITCH
Q651,652
BATTERY
DETECT
BATTERY
DETECT
Q740,741
+5V REGULATOR
ACCESSORY
CHECK
(POWER)
POWER AMP
TA8272H
TDA7386 (TYPE B)
(TYPE A)
(TYPE B)
TAB
BEEP
GND
GND
(TYPE B)
(TYPE A)
(TYPE B)
(TYPE B)
(TYPE A)
∗
C506
0.022
1
(TYPE B)
(TYPE A)
(TYPE B)
(TYPE A)
∗
C507
10 16V
47 16V
(TYPE B)
(TYPE A)
∗
(TYPE B)
(TYPE A)
∗
R502
R503
47k
10k
2.2k
22
250
µ
H
REAR RCH+
REAR RCH-
FRONT RCH+
FRONT RCH-
FRONT LCH+
FRONT LCH-
REAR LCH+
REAR LCH-
5-4.
SCHEMATIC DIAGRAM – MAIN Board (2/2) –
•
See page 24 for IC Block Diagram.
•
Refer to servicing note (page 2) for discrimination of TYPE A/B.
(Page 20)
Ver 1.2
XR-L240
22
22
CONTROL BOARD
(COMPONENT SIDE)
A
K
D930
A
K
D920
A
K
D932
AK
D931
AK
D916
KA
D917
AK
D910
KA
D911
AK
D912
KA
D913
AK
D922
AK
D923
AK
D921
KA
KA
D934
AK
D933
LCD900
LIQUID CRYSTAL DISPLAY
50
1
D914
A
K
D915
K
A
D925
K
A
D924
K
A
S974
S958
S956
MODE
S975
S957
S955
SEL
D914, S954
ATT
S954
S953
D915, S953
BTM
SENS
D913, S963
5
D923, S964
TA
D916, S952
D917, S951
AF
D910, S960
D911, S961
D912, S962
D922, S968
ATA
6
S959
TUNER
T
S952
S951
S960
S961
S962
S963
S968
S964
S965
D924, S965
PTY
D925, S967
DSPL
S967
S970
S977
D921, S973
OFF
S972
D-BASS
D
S971
MBP
S969
S976
–
D920,
S957, 975
+
D930,
S958, 974
D910 – 918, 920 – 925, 930 – 934
A
K
1-683-564-
11
(11)
D934,
S969, 976
SEEK
AMS
CONTROL BOARD
(CONDUCTOR SIDE)
PL902
(LCD BACK LIGHT)
PL901
(LCD BACK LIGHT)
D961
A
K
R954
C952
R913
R912
D960
A
K
R955
R918
R917
D962
A
K
C953
C955
C954
1
20
21
40
41
60
61
80
IC900
D963
K
A
R911
R900
R910
2
12
11
1
CN900
A
MAIN BOARD
CN600
R905
R904
R903
R902
R901
R920
R921
R932
R931
R930
R916
R915
R919
R914
D964
K
A
1-683-564-
11
(11)
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
(VOLUME)
D931, 932
(ILLUMINATION)
D918
(ILLUMINATION)
+
D933,
S970, 977
–
4
3
2
1
5-5.
PRINTED WIRING BOARD – CONTROL Board –
(Page 19)
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
D910
C-5
D911
C-6
D912
C-7
D913
C-7
D914
C-2
D915
C-3
D916
C-4
D917
C-4
D918
B-10
D920
C-1
D921
C-10
D922
C-8
D923
C-9
D924
C-10
D925
C-10
D930
B-1
D931
B-2
D932
B-2
D933
C-11
D934
B-11
D960
D-3
D961
F-2
D962
D-5
D963
D-7
D964
F-11
IC900
E-6
Ref. No.
Location
XR-L240
23
23
5-6.
SCHEMATIC DIAGRAM – CONTROL Board –
•
See page 24 for Waveform.
(Page 20)
XR-L240
24
24
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC200
SAA6588T-118
SCOUT
MRO
MPTH
TCON
OSCO
OSCI
VSSD
VDDD
DAVN
SDA
VREF
MPX
VSSA
VDDA
AFIN
MAD
PSWN
SCL
2
1
6
15
11
13
16
14
12
INTERFACE
REGISTER
SIGNAL QUALITY
DECODER
CLOCKED
COMPARATOR
POWER SUPPLY
& RESET
TEST
CONTROL
OSCILLATOR
& CLOCK
PAUSE
DETECTOR
MULTI
PATH
DETECTOR
57kHz
8th ORDER
BAND-PASS FILTER
RDS/RDBS
DECODER
RDS/RDBS
DEMODULATOR
IIC BUS SLAVE
TRANSCEIVER
17
18
CIN
19
LVIN
20
8
7
DATA
CLOCK
DATA
CLOCK
4
4
5
9
10
3
4
5
IC400
LC75421M-TLM
36
35 34 33
1
2
CCB
INTERFACE
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
+
–
–
+
–
–
32 31
+
–
30
29
28
+
–
27 26 25
24 23 22 21 20 19
+
–
+
–
–
+
–
–
R VREF
4
5
+
–
+
–
6
7
+
–
–
8
9
10
+
–
–
11 12 13
14 15 16 17 18
+
–
–
+
–
+
–
L VREF
3
LROUT
LFOUT
LFIN
LOUT
LSB
LBASS2
LBASS1
LTRE
LIN
LSELO
L5
L4
L3
L2
L1
VSS
VDD
RROUT
RFOUT
RFIN
ROUT
RSB
RBASS2
RBASS1
RTRE
RIN
RSELO
R5
R4
R3
R2
R1
VREF
CL
DI
CE
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC200
4
(OSCO)
4
IC900
ud
(OSC)
2
IC1
qs
(OSC2)
3
IC1
qh
(XO)
2.4 Vp-p
231 ns
1.8 Vp-p
54.3 ns
5.4 Vp-p
30.5
µ
s
– CONTROL Board –
2.6 Vp-p
21
µ
s
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