DOWNLOAD Sony XR-M500R / XR-M550 Service Manual ↓ Size: 11.76 MB | Pages: 86 in PDF or view online for FREE

(ECN-CSA03404/CSB02152)

US Model

Canadian Model

XR-M550

AEP Model

UK Model

XR-M500R

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

2

2-1. Note for Printed Wiring Boards and

Schematic Diagrams ..............................................................

3

2-2. Printed Wiring Boards

– MAIN Board (Component Side) – (XR-M550 Only) ........

4

2-3. Printed Wiring Boards

– MAIN Board (Conductor Side) –  (XR-M550 Only) ........

5

2-4. Schematic Diagram

– MAIN Board (1/4) – (XR-M550 Only) ..............................

6

2-5. Schematic Diagram

– MAIN Board (2/4) – (XR-M550 Only) ..............................

7

2-6. Schematic Diagram

– MAIN Board (3/4) – (XR-M550 Only) ..............................

8

2-7. Schematic Diagram

– MAIN Board (4/4) – (XR-M550 Only) ..............................

9

2-8. Printed Wiring Boards  –SUB Board – (XR-M550 Only) .... 10
2-9. Schematic Diagram  – SUB Board – (XR-M550 Only) ....... 11
2-10. Printed Wiring Boards  – DISPLAY Board – ........................ 12
2-11. Schematic Diagram  – DISPLAY Board – ............................ 13

....................................................... 14

...................................... 14

In this set, following boards have been changed in the midway of production.
Only XR-M550 is the object of changing MAIN/SUB boards.

2

Former type : 1-677-719-11
New Type

: 1-680-700-11

Former type : 1-677-721-11
New Type

: 1-680-701-11

Former type : 1-677-725-11
New Type

: 1-677-725-12

3

3

Note on Printed Wiring Board:
•

X

: parts extracted from the component side.

•

Y

: parts extracted from the conductor side.

•

b

: Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution:
Pattern face side:

Parts on the pattern face side seen from

(Conductor Side)

the pattern face are indicated.

Parts face side:

Parts on the parts face side seen from

(Component Side)

the parts face are indicated.

Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted.  pF: µµF

50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in 

Ω

 and 

1

/

4

 

W or less unless otherwise

specified.

•

f

: internal component.

•

C

: panel designation.

•

U

: B+ Line.

•

H

: adjustment for repair.

• Power voltage is dc 14.4V and fed with regulated dc power

supply from ACC and BATT cords.

• Voltages are dc with respect to ground under no-signal

(detuned) conditions.
no mark : FM
(

) : AM

〈〈

 

〉〉

: TAPE PLAYBACK

• Voltages are taken with a VOM (Input impedance 10 M

Ω

).

Voltage variations may be noted due to normal produc-
tion tolerances.

• Circled numbers refer to waveforms.
• Signal path.

F

: FM

f

: AM

L

: BUS AUDIO IN

E

: TAPE PLAY

• DISPLAY board is four-layer printed board.

However, the patterns of layers 2 and 3 have not been in-
cluded in this diagrams.

4

4

IC503

H-3

IC601

F-6

IC602

E-5

IC606

J-7

IC607

I-8

Q100

E-13

Q103

E-8

Q104

F-8

Q106

K-6

Q107

K-6

Q200

B-11

Q201

B-11

Q204

C-12

Q220

I-6

Q221

I-6

Q222

I-6

Q223

J-4

Q250

B-10

Q251

B-10

Q254

C-12

Q300

E-4

Q302

E-4

Q402

E-3

Q403

F-3

Q404

H-11

Q405

G-3

Q406

G-3

Q500

H-3

Q501

J-2

Q502

I-2

Q503

F-4

Q504

F-4

Q505

G-5

Q506

I-4

Q600

E-6

Q603

G-7

Q604

J-4

Q605

F-9

Q606

F-9

Q607

D-4

Q608

D-4

Q611

I-9

Q612

F-9

R228

D-9

Ref. No.

Location

Ref. No.

Location

D100

D-13

D103

I-9

D104

D-13

D200

B-9

D201

I-5

D202

H-6

D203

B-9

D205

J-4

D206

H-6

D300

B-7

D301

B-7

D302

B-6

D303

B-7

D304

B-8

D305

B-8

D306

B-8

D307

B-8

D310

C-4

D311

C-4

D312

E-3

D316

B-6

D400

F-3

D500

F-4

D501

B-1

D502

I-4

D505

F-4

D506

G-4

D507

G-4

D508

G-4

D509

H-2

D511

H-4

D513

G-4

D606

H-5

D607

D-2

D610

J-3

D611

J-6

D627

J-9

D628

I-5

IC100

F-11

IC101

G-9

IC102

J-6

IC202

C-11

IC400

F-3

IC401

H-11

IC501

H-4

IC502

G-2

(Page 12)