Sony XR-3758 / XR-3759 / XR-T3758 Service Manual ▷ View online
MICROFILM
XR-3758/3759
FM/MW/LW CASSETTE CAR STEREO
SERVICE MANUAL
UK Model
Model Name Using Similar Mechanism
XR-3750/C350
Tape Transport Mechanism Type
MG-52A-135
•
XR-3758/3759 are almost same as XR-3750 UK model.
Printed wiring boards, schematic diagram, exploded views
and electrical parts list are described in this service manual.
Please refer to XR-3750/C350 service manual previously
issued for the other informations.
Printed wiring boards, schematic diagram, exploded views
and electrical parts list are described in this service manual.
Please refer to XR-3750/C350 service manual previously
issued for the other informations.
TABLE OF CONTENTS
1.
EXPLODED VIEWS
................................................ 2
2.
DIAGRAMS
2-1. Printed Wiring Boards –MAIN Section– ........................ 6
2-2. Schematic Diagram –MAIN Section– ............................ 9
2-3. Printed Wiring Board –KEY Section– ........................... 14
2-4. Schematic Diagram –KEY Section– .............................. 16
2-2. Schematic Diagram –MAIN Section– ............................ 9
2-3. Printed Wiring Board –KEY Section– ........................... 14
2-4. Schematic Diagram –KEY Section– .............................. 16
3.
ELECTRICAL PARTS LIST
................................ 19
Photo: XR-3759
SERVICING NOTES
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270 ˚ C dur-
ing repairing.
ing repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering
or unsoldering
Notes on chip component replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
– 2 –
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference num-
ber in the exploded views are not supplied.
ber in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
packing materials are given in the last of the
electrical parts list.
SECTION 1
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-009-294-01 PANEL, SUB
2
3-935-003-01 SPRING, TORSION
3
3-932-205-21 DOOR, CASSETTE (XR-3758)
3
3-932-205-71 DOOR, CASSETTE (XR-3759)
4
X-3367-636-1 LOCK ASSY
* 5
3-010-376-01 INSULATOR
* 6
A-3309-950-A MAIN BOARD, COMPLETE (XR-3759)
* 6
A-3309-953-A MAIN BOARD, COMPLETE (XR-3758)
7
3-915-923-01 SCREW, GROUND POINT
* 8
X-3373-504-1 COVER ASSY
* 10
3-012-264-01 BRACKET (52)
* 11
3-010-471-01 HEAT SINK
12
9-911-840-XX CUSHION (U)
* 13
3-009-813-11 CHASSIS (XR-3758)
* 13
3-009-813-31 CHASSIS (XR-3759)
* 15
A-3309-913-A CONNECTOR BOARD, COMPLETE (XR-3758)
* 15
A-3313-078-A CONNECTOR BOARD, COMPLETE (XR-3759)
* 18
3-012-860-01 CAP (52), RUBBER
* 19
3-009-816-01 BRACKET (IC) (ISO)
F801
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) (10A)
(1) CHASSIS SECTION
8
F801
10
#3
MG-52A-135
7
6
5
4
3
Front panel ass’y
#2
#3
#3
1
2
18
#3
13
15
#3
12
#3
19
not
supplied
supplied
#1
#1
– 3 –
(2) FRONT PANEL SECTION
53
54
52
59
60
62
LCD901
not supplied
(KEY board)
(KEY board)
#5
#5
PL901
65
66
61
51
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
3-009-301-01 BUTTON (BASS)
52
3-010-472-01 BUTTON (L2) (+. –)
53
3-009-304-01 BUTTON (RELEASE)
54
3-935-119-01 SPRING (RELEASE)
56
X-3373-702-1 PANEL SUB ASSY (XR-3759)
56
X-3373-703-1 PANEL SUB ASSY (XR-3758)
57
3-009-300-01 BUTTON (SOURCE)
58
3-009-297-11 BUTTON (L) (+
+ ). SEEK AMS.
= 0 –. r. OFF. SEL. MUTE)
59
3-010-473-01 BUTTON (1–3) (
6. 1. 2. 3)
60
3-010-474-11 BUTTON (4–6) (4. 5. 6)
61
3-009-315-01 BUTTON (R) (3) (BTM. LCL. DSPL)
* 62
3-010-282-01 PLATE (LCD), GROUND
* 63
3-012-669-01 SHEET (REFLECTOR)
* 64
3-009-302-01 PLATE (LCD), LIGHT GUIDE
* 65
3-009-303-02 HOLDER (LCD)
66
3-010-519-01 PANEL, FRONT BACK
LCD901 1-801-678-11 DISPLAY PANEL, LIQUID CRYSTAL
PL901
PL901
1-517-633-21 LAMP, PILOT (LCD BACK LIGHT)
PL902
1-517-633-21 LAMP, PILOT (LCD BACK LIGHT)
58
57
56
64
63
PL902
– 4 –
(3) MECHANISM DECK SECTION-1
(MG-52A-135)
106
107
108
109
M901
110
111
112
102
103
#7
104
105
A
A
#6
101
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
101
3-928-675-01 BELT (52)
* 102
3-928-673-01 LEVER (LDG-A)
103
3-928-674-01 LEVER (LDG-B)
104
3-933-341-01 SPRING (LEVER LDG), TENSION
105
3-928-671-01 HOUSING
* 106
3-933-347-01 ARM (SUCTION)
107
3-933-340-01 HANGER
108
3-933-346-01 CATCHER
109
3-933-344-01 GUIDE (C)
110
3-341-753-11 WASHER, POLYETHYLENE
111
3-933-335-01 GEAR (LDG-FT)
112
3-928-667-01 GEAR (LDG-A)
