Sony XR-2800, XR-2803 Service manual
XR-2800/2803
SERVICE MANUAL
Ver 1.1 2001.08
Photo: XR-2800
SPECIFICATIONS
AEP Model
UK Model
XR-2800
East European Model
XR-2803
Model Name Using Similar Mechanism NEW
Tape T ransport Mechanism T ype MG-25E-136
FM/MW/LW CASSETTE CAR STEREO
9-925-682-12 Sony Corporation
2001H0500-1 e Vehicle Company
C 2001.8 Shinagawa Tec Service Manual Production Group
TABLE OF CONTENTS
1. GENERAL
Location of Controls ....................................................... 3
Installation....................................................................... 4
Connections ..................................................................... 5
2. DISASSEMBLY ......................................................... 8
3. ASSEMBLY OF MECHANISM DECK........... 11
4. MECHANICAL ADJUSTMENTS....................... 14
5. ELECTRICAL ADJUSTMENTS
Test Mode........................................................................ 14
Tape Deck Section .......................................................... 14
Tuner Section .................................................................. 15
6. DIAGRAMS
6-1. Printed Wiring Boards – MAIN Section – .................... 19
6-2. Schematic Diagram – MAIN Section –.......................... 23
6-3. Printed Wiring Board – PANEL Section – .................... 27
6-4. Schematic Diagram – PANEL Section –....................... 29
6-5. IC Pin Function Description ........................................... 31
7. EXPLODED VIEWS ................................................ 34
8. ELECTRICAL PARTS LIST ............................... 37
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
Discard used batteries according to the manufacturer’ s instructions.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.
ADVARSEL
Eksplosjonsfare ved feilaktig skifte av batteri.
Benytt samme batteritype eller en tilsvarende type
anbefalt av apparatfabrikanten.
Brukte batterier kasseres i henhold til fabrikantens
instruksjoner.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ som
rekommenderas av apparattillverkaren.
Kassera använt batteri enligt gällande föreskrifter.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
V aihda paristo ainoastaan laite valmistajan suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
– 2 –
SECTION 1
GENERAL
This section is extracted from
instruction manual.
– 3 –
– 4 –
– 5 –
– 6 –
– 7 –
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
COVER
1
two screws
(PTT2.6
×
6)
A
3
Remove the cover
toward direction
A
.
2
COLLAR (A), HANDLE ASS’Y
3
screw
(PTT2.6
1
seven claws
×
6)
2
collar (A)
4
handle ass’y
3
screw
(PTT2.6 × 6)
– 8 –
FRONT PANEL ASS’Y
d
1
two claws
2
front panel ass’y
1
three claws
MECHANISM DECK (MG-25E-136)
5
mechanism deck
(MG-25E-136)
1
connector
(CN351)
4
chassis (front)
3
two screws
(PTT2.6
×
6)
3
three screws
(PTT2.6
2
flexible boar
(CN1)
×
6)
– 9 –
POWER BOARD
s
2
two connectors
(CNJ400, 401)
3
power board
1
three screw
(PTT2.6 × 8)
MAIN BOARD
2
claw
1
two ground point
screws
4
Break the soldering of
antenna cable.
1
ground point screw
3
main board
– 10 –
SECTION 3
2
Move the arm (suction) in the arrow
direction and fit on projection.
1
Fit the arm (suction) on the shaft.
projection
ASSEMBLY OF MECHANISM DECK
Note: Follow the assembly procedure in the numerical order given.
HOUSING
4
Fit claw on B part.
3
Put the housing
under A part.
2
Install the hanger onto
two claws of the housing.
housing
5
Fit projection on C part.
C
part
7
Holder the hanger by bending the claw.
1
Install the catch to the hanger.
hanger
6
Fit projection on D part.
8
Hold the hanger by
bending the claw.
D
part
ARM (SUCTION)
A
part
B
part
– 11 –
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