Sony CDX-C4900R User manual

Subject : Change of Main, Sub (CD) and Key Boards

SUPPLEMENT-2

File this supplement with the service manual.

(ECN-CSA01521/CSA02901)

AEP Model

UK Model

SERVICE MANUAL

TABLE OF CONTENTS

1.CHANGE OF MAIN,SUB (CD) AND KEY BOARDS

1-1. Discrimination ........................................................2

1-2. Diagrams

• Printed Wiring Board –Main Section– ....................................... 4

• Schematic Diagram –Main Section (1/3)– .................................6

• Schematic Diagram –Main Section (2/3)– ................................. 7

• Schematic Diagram –Main Section (3/3)– ................................. 8

• Schematic Diagram –Sub (CD) Section–................................... 9

• Printed Wiring Board –Sub (CD) Section– .............................. 10

• Printed Wiring Board –Key Section–....................................... 11

• Schematic Diagram –Key Section– .........................................12

1-3. ELECTRICAL PARTS LIST .................................13

CDX-C4900R/C5000R/C5000RX

1. Change of Main, Sub (CD) and Key Boards

When performing service and inspection, check the part number of

the main, sub (CD) and key boards.

1-1. Discrimination

-MAIN BOARD (COMPONENT SIDE)-

Main board part No.

Former:1-677-055-11

New :1-677-055-12

-SUB(CD) BOARD (COMPONENT SIDE)-

Sub(CD) board part No.

Former:1-677-056-11

New :1-677-056-12

-KEY BOARD (COMPONENT SIDE)-

Key board part No.

Former:1-676-602-12

New :1-676-602-13

CDX-C4900R/C5000R/C5000RX

1-2. Diagrams

THIS NOTE IS COMMON FOR PRINTEDWIRING

BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is

printed in each block.)

• Refer to page.

( ) : Refer to page of supplement-2.

< > : Refer to page of service manual.

for 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 Ωand 1/4W or less unless otherwise

specified.

• % : indicates tolerance.

•f: internal component.

•C: panel designation.

•U: B+ Line.

• Powervoltage isdc 14.4Vand fedwith regulateddc power

supply from ACC and BATT cords.

• Voltagesare takenwith aVOM(Input impedance10 MΩ).

Voltage variations may be noted due to normal produc-

tion tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc-

tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F: FM

f: MW

J: CD

for printed wiring boards:

•X: parts extracted from the component side.

•Y: parts extracted from the conductor side.

•a: Through hole.

•b: Pattern from the side which enables seeing.

(The other layer’s patterns are not indicated.)

Caution:

Pattern face side: Parts onthepatternface sideseenfrom the

(Side B) pattern face are indicated.

Parts face side: Parts on the parts face side seen from the

(Side A) parts face are indicated.

• PRINTEDWIRING BOARD — MAIN SECTION —

CDX-C4900R/C5000R/C5000RX

Ref. No. Location

D1 E-9

D301 G-4

D501 I-7

D502 H-7

D551 J-13

D552 K-13

D553 K-13

D554 J-12

D555 K-13

D556 J-12

D557 K-13

D558 J-12

D559 K-13

D560 J-12

(D571) B-5

D603 B-4

(D605) B-5

D622 D-9

D624 C-9

D653 I-7

D661 D-5

D662 D-5

D673 C-5

D674 C-5

D701 E-5

D702 C-4

D703 B-3

D704 B-2

D705 B-2

D706 B-2

D708 G-7

D710 D-4

IC51 I-12

IC90 H-11

IC151 D-10

IC501 I-5

IC652 J-3

IC701 C-3

Q1 G-11

Q171 B-11

Q181 B-11

Q271 C-11

Q281 C-11

Q363 I-3

Q365 G-2

Q551 J-6

(Q571) D-6

Q621 C-10

Q622 C-9

Q633 J-2

Q651 I-8

Q652 I-8

Q661 D-5

Q701 D-5

Q704 G-7

Q705 C-4

Q706 D-4

• Semiconductor

Location (Side A)

( ): CDX-C5000R/C5000RX only

CDX-C4900R/C5000R/C5000RX

(Page 10)

Ref. No. Location

D2 E-8

D90 H-12

D91 H-11

D92 G-12

D302 G-8

D361 I-2

D362 G-2

D363 G-3

D561 K-11

D562 K-11

D601 C-3

D602 B-4

D604 A-5

D621 C-10

D631 J-2

D671 C-5

D672 C-5

D675 I-4

D676 I-4

D677 I-4

D709 G-5

IC611 B-7

IC671 E-1

Q90 G-11

Q361 H-1

Q362 G-1

Q364 G-2

Q631 J-2

• Semiconductor

Location (Side B)

• SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 39 of Service manual for IC Block Diagrams.

Note:

• Voltage is dc with respect to ground under no-signal

(detuned) condition.

no mark : FM

( ) : MW

CDX-C4900R/C5000R/C5000RX

(Page 7) (Page 8)

• SCHEMATIC DIAGRAM — MAIN SECTION (2/3) —

Note:

• Voltage is dc with respect to ground under no-signal

(detuned) condition.

no mark : FM

( ) : MW

< > : CD PLAY

∗: Impossible to measure

CDX-C4900R/C5000R/C5000RX

(Page 8)

(Page 6)

• SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 39 of Service manual for IC Block Diagrams.

Note:

• Voltage is dc with respect to ground under no-signal

(detuned) condition.

no mark : FM

( ) : MW

< > : CD PLAY

∗: Impossible to measure

CDX-C4900R/C5000R/C5000RX

(Page 9)

(Page 6)

(Page 7)

• SCHEMATIC DIAGRAM — SUB (CD) SECTION —

CDX-C4900R/C5000R/C5000RX

(Page 12)

(Page 8)

1010

CDX-C4900R/C5000R/C5000RX

• PRINTED WIRING BOARD — SUB (CD) SECTION —

(Page 11)

(Page 5)

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