Sony CDX-C4900R User manual
1
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
2
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
33
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.
44
• 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
55
CDX-C4900R/C5000R/C5000RX
<Page 27>
(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)
66
• 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)
77
• 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)
<Page 28>
88
• 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)
99
• 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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