Read Sony CX-LFA660 / CX-LFA770 / XR-FA660 / XR-FA770 Service Manual online
2
CX-LFA660/LFA770
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
3
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
8
3-2.
Top Cabinet, Tuner (FM/AM), DC Fan ..........................
9
3-3.
Panel (DVD) ....................................................................
9
3-4.
CD Mechanism Section ................................................... 10
3-5.
Front Panel Section ......................................................... 10
3-6.
MAIN Board .................................................................... 11
3-7.
FRONT Board ................................................................. 11
3-8.
Cassette Deck Mechanism ............................................... 12
3-9.
Power Transformer .......................................................... 12
3-10. Tray (AU) ........................................................................ 13
3-11. MS-128 Board ................................................................. 13
3-12. Base Unit, Belt, Driving Gear ......................................... 14
3-11. MS-128 Board ................................................................. 13
3-12. Base Unit, Belt, Driving Gear ......................................... 14
4.
TEST MODE
............................................................... 15
5.
MECHANICAL ADJUSTMENTS
......................... 16
6.
ELECTRICAL ADJUSTMENTS
.......................... 17
7.
DIAGRAMS
7-1.
Block Diagram – BD Section – ...................................... 22
– MAIN Section – ........................................................... 23
– MAIN Section – ........................................................... 23
7-2.
Printed Wiring Board – BD81A Section – ..................... 24
7-3.
Schematic Diagram – BD81A Section – ........................ 25
7-4.
Printed Wiring Boards – MAIN Section – ..................... 26
7-5.
Schematic Diagram – MAIN Section (1/2) – ................. 27
7-6.
Schematic Diagram – MAIN Section (2/2) – ................. 28
7-7.
Printed Wiring Board – FRONT Section – ..................... 29
7-8.
Schematic Diagram – FRONT Section – ....................... 30
7-9.
Printed Wiring Board – AMP Section – ......................... 31
7-10. Schematic Diagram – AMP Section – ............................ 32
7-11. Printed Wiring Board – PT Section – ............................. 33
7-12. Schematic Diagram – PT Section – ................................ 33
7-11. Printed Wiring Board – PT Section – ............................. 33
7-12. Schematic Diagram – PT Section – ................................ 33
8.
EXPLODED VIEWS
8-1.
Overall Section ................................................................ 41
8-2.
Front Section ................................................................... 42
8-3.
Chassis Section ................................................................ 43
8-4.
CD Mechanism Deck Section (CDM77B-F1BD81A) .... 44
8-5.
Base Unit (BU-F1BD81A) .............................................. 45
9.
ELECTRICAL PARTS LIST
.................................. 46
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
(50-kHz step)
(50-kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
European model:
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 9 kHz)
Other models:
530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 10 kHz)
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
Antenna
AM loop antenna, external
antenna terminal
antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
European model:
European model:
230 V AC, 50/60 Hz
Australian model:
230 – 240 V AC, 50/60 Hz
Power consumption
XR-FA770:
XR-FA770:
75 W
0.3 W (in Power Saving
Mode)
0.3 W (in Power Saving
Mode)
XR-FA660
European model:
European model:
65 W
0.3 W (in Power Saving
Mode)
0.3 W (in Power Saving
Mode)
Other models:
70 W
Dimensions (w/h/d)
Approx. 190
×
250
×
308
mm incl. projecting parts
and controls
and controls
Mass
CX-LFA770 for XR-FA770:
CX-LFA770 for XR-FA770:
Approx. 6.1 kg
CX-LFA660 for XR-FA660:
Approx. 5.8 kg
Design and specifications are subject to change
without notice.
without notice.
Frequency response
50 – 13,000 Hz (
±
3 dB),
using Sony TYPE I
cassettes
cassettes
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