DOWNLOAD Sony CX-LEM550 / XR-EM550 Service Manual ↓ Size: 3.24 MB | Pages: 48 in PDF or view online for FREE

Model
CX-LEM550 XR-EM550
Pages
48
Size
3.24 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cx-lem550-xr-em550.pdf
Date
PREV: Sony SRS-T57 (serv.man2) Service Manual

Sony CX-LEM550 / XR-EM550 Service Manual ▷ View online

21
21
CX-LEM550
7-5. SCHEMATIC DIAGRAM — MAIN BOARD  —
3.1
0.2
0.2
3.1
1.9
1.9
0
0
0
10.0
9.3
3.9
9.2
1.2
2.0
0
2.3
-30.8
9.3
9.3
-31.5
-30.7
-34.1
-31.5
-34.7
-30.8
-34.1
-37.3
-37.3
-41.2
-38.1
0
1.5
8.5
0.7
0.5
1.2
0.1
3.1
10.0
0.1
10.0
4.2
8.3
3.6
(7.5)
9.3
<0>
10.0
<9.2>
10.0
<9.9>
0
<6.5>
0
<7.1>
0
<1.9>
0
10.0
<6.3>
0
<0.2>
0
<6.5>
0
<0.3>
0
<0.2>
0
<0.3>
0
<6.5>
0
<-0.7>
2.8
<-0.7>
2.8
<-7.1>
2.5
<-20.6>
<-11.7>
<-0.7>
2.8
<-7.1>
2.5
<-7.1>
2.5
2.8
2.8
0
0
2.8
0
0
0
0
<-20.6>
0
<-20.6>
0
0
0
0
0
0
0
0
0
0
0
0
0
4.6
0.5
-4.5
0
0
0
0
0
0
0
0
0
0
0
0
0
5
(    ) : CD PLAY
NO MARK: FM
<    > : TAPE REC
Q346-348
REC BIAS
SWITCH
Q326-332
REC/PB
SWITCH
Q344, 345
BIAS OSC
Q311, 315
MAIN POWER
RELAY DRIVE
Q333, 338
AC DETECT
Q334-337
REGULATOR
Q312-314
REGULATOR
Q349, 350
FAN MOTOR DRIVE
Q319, 320
B+ SWITCH
Q317
REGULATOR
Q342, 343
DC DETECT
MAIN BOARD
INPUT SELECT
ELECTRICAL VOLUME
IC302
AMP BOARD
CN308
 
SPEAKER
IMPEPANCE
USE 6-16
Ω
L
R
HP BOARD
CNB501
 
AMP BOARD
CN307
 
POWER
BOARD
CN903
CD BOARD
CN201
A
 
CONTROL
BOARD
CNB303
CONTROL
BOARD
CNB302
 
MD
R
L
R-CH
REC/PB
HEAD
L-CH
ERASE
HEAD
9P
C
G
B
D
F
E
47/35V
2SC1623-L5L6
2SC1623-L5L6
4.7K
4.7K
2SC2120-Y
2SC2120-Y
56K
47/35V
1N4002B
1N4002B
1/4W
100P
100P
47/35V
47/35V
2SK2158-T2B
2SK2158-T2B
2SK2158-T2B
1SS133T-77
KRA303-RTK
KRA303-RTK
2SD1387-3
KTA1266GR-AT
47/35V
1SS133T
-77
UDZ-TE-17-4.3B
UDZ-TE-17-4.3B
1SS133T-77
RD5.1ESB2
1N4002B
RD3.3ESB2
RD3.9ESB2
1SS133T-77
KRC402-RTK
RD3.3ESB2
1SS133T
-77
KRC402-RTK
KRC402-RTK
KRC402-RTK
KTA1266GR-AT
KTA1266GR-AT
KTA1266GR-AT
KTA1266GR-AT
1SS133T
-77
RD3.9ESB2
RD3.3ESB2
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
0.068
0.068
KTA1273Y-AT
KTC3199GR-TP
47K
47K
47/35V
22K
22K
• See page 28 for Waveforms.
• See page 31 for IC Block diagram.
(Page 23)
(Page 25)
(Page 25)
(Page 19)
(Page 23)
(Page 23)
(Page 27)
22
22
CX-LEM550
7-6. PRINTED WIRING BOARD — AMP SECTION  —
•
 See page 15 for Circuit Boards Location.
 :Uses unleaded solder.
M301
(FAN)
IC501
IC305
7
AMP BOARD
HP BOARD
MAIN BOARD
CNB307
F
MAIN BOARD
CNB308
B
MAIN BOARD
CN501B
D
1-861-720-
11
11
1-861-722-
11
11
PHONES
J301
1
2
7
6
3
4
5
M
1
3
(Page 20)
(Page 20)
(Page 20)
23
23
CX-LEM550
7-7. SCHEMATIC DIAGRAM — AMP SECTION —
24.5
0
0
0
0
0
24.5
-24.4
0
0
19.1
10.0
0
0
0
NO MARK: FM
180
180
150
150
1SS133T-77
1SS133T-77
PHONES
M301
(FAN)
R369
AMP BOARD
MAIN
BOARD
CNB308
IC501
POWER AMP
IC305
REGULATOR
MAIN
BOARD
CNB307
MAIN
BOARD
CN501B
HP BOARD
B
D
F
(Page 21)
(Page 21)
(Page 21)
24
24
CX-LEM550
7-8. PRINTED WIRING BOARD — CONTROL BOARD —
•
 See page 15 for Circuit Boards Location.
 :Uses unleaded solder.
E
E
E
E
E
IC801
IC803
IC802
E
E
CONTROL BOARD
MAIN
BOARD
CN303
C
MAIN
BOARD
CN302
G
BASS/
TREBLE
FM/AM
TUNER PACK
ANTENNA
TAPE MECHANISM
DECK BLOCK
PLAY MODE/
TUNING MODE
ROTARY
ENCODER
?/1
CD
NX
TUNING
+
M >
TUNER/
BAND
TUNING
−
. m
DISPLAY
TAPE
nN
z
REC
PAUSE/START
SYNCHRO
REC
FM 75
Ω
(COAXIAL)
AM
x
1-861-719-
i-Bass
ALBUM
+
ALBUM
−
VOLUME
(11)
11
1
1
2
3
1
3
1
30
31
50
51
80
81
100
(EXCEPT AEP, UK)
(EXCEPT SP, TW, KR)
(AEP, UK)
11P(EXCEPT AEP, UK)
S820
CD LID
OPEN/CLOSE DETECT
15P(AEP, UK)
• Semiconductor
Location
Ref. No.
Location
D801
C-5
D803
C-4
D807
B-5
D808
B-5
D809
A-5
D810
B-5
D811
B-5
D812
B-5
D813
B-5
D880
A-5
IC801
B-3
IC802
B-1
IC803
B-5
Q801
B-4
Q802
C-5
Q803
C-5
Q804
C-5
Q805
C-5
Q807
B-5
Q808
B-6
(Page 20)
(Page 20)
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