XR-F5100 - Sony Car Audio Service Manual (repair manual). Page 2

2

• Keep the temperature of the soldering iron around 270 ˚C dur-

ing 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.

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

.........................................................

2

Location of Controls .......................................................

3

Setting the Clock .............................................................

3

2-1. Disassembly Flow ...........................................................

8

2-2. Sub Panel Section ............................................................

8

2-3. Mechanism Deck (MG-25L-136) ...................................

9

2-4. MAIN Board ...................................................................

9

3-1. Assembly Flow ................................................................ 10
3-2. Housing ........................................................................... 11
3-3. Arm (Suction) ................................................................. 11
3-4. Lever (LDG-A)/(LDG-B) ............................................... 12
3-5. Gear (LDG-FT) ............................................................... 12
3-6. Guide (C) ......................................................................... 13
3-7. Mounting Position of Capstan/Reel Motor (M901) ....... 13

....................... 14

Tape Deck Section .......................................................... 14
Tuner Section .................................................................. 15

6-1. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 16

6-2. Printed Wiring Board  – MAIN Board – ........................ 17
6-3. Schematic Diagram  – MAIN Board (1/3) – .................. 18
6-4. Schematic Diagram  – MAIN Board (2/3) – .................. 19
6-5. Schematic Diagram  – MAIN Board (2/3) – .................. 20
6-6. Printed Wiring Board  – SUB Board – ........................... 21
6-7. Schematic Diagram  – SUB Board – .............................. 21
6-8. Printed Wiring Board  – DISPLAY Board – .................. 22
6-7. Schematic Diagram  – DISPLAY Board – ..................... 23

7-1. Shassis Section ................................................................ 27
7-2. Front Panel Section ......................................................... 28
7-3. Mechanism Deck Section (MG-25L-136) ...................... 29

............................... 30

In checking the control board and main board, prepare two jigs
(extension (MD) cord J-2502-060-1 and
connection cable for F/P to main J-2502-072-1).

MAIN board

SUB board
(CNP801)

mechanism deck

MAIN board (CN351)

DISPLAY board
(CN901)

connect jig
(connection cable 
for F/P to MAIN J-2502-071-1)
to the DISPLAY board (CN901) and
SUB board (CNP801).

connect jig
(connection cable J-2502-066-2)
to the MAIN board (CN351) and 
mechanism deck.

sub panel
assy