Sony CDX-C8050X Service Manual

CDX-C8050X

US Model

SERVICE MANUAL

SUPPLEMENT-2

File this supplement with the service manual.

Subject : Correction

Change of Circuit Boards.

(ECN-CSA02398, CSA02816, CSA02817)

	TABLE OF CONTENTS
1. CORRECTION ...................................................................		2
2. CHANGE OF CIRCUIT BOARDS
2-1.	Discrimination .....................................................................	4
2-2.	Printed Wiring Board –Main Section– ................................	6
2-3.	Schematic Diagram –Main Section (1/4)– ..........................	8
2-4.	Schematic Diagram –Main Section (2/4)– ..........................	9
2-5.	Schematic Diagram –Main Section (3/4)– ........................	10
2-6.	Schematic Diagram –Main Section (4/4)– ........................	11
2-7.	Printed Wiring Board –DSO Section– ..............................	12
2-8.	Schematic Diagram –DSO Section– .................................	13
2-9.	Printed Wiring Board –Sub (CD) Section– .......................	14
2-10.	Schematic Diagram –Sub (CD) Section– ..........................	15
2-11.	Printed Wiring Board –Key Section– ................................	16
2-12.	Schematic Diagram –Key Section– ...................................	17
2-13.	Electrical Parts List ...........................................................	18

1

1. CORRECTION

!: indicates corrected portion.

Page 48.

		INCORRECT						CORRECT
	24				12			^
			22	11			24	22		12
									11
					15						15
			23					23
								%
								25
Ref. No.	Part No.	Description			Remark	Ref. No.	Part No.	Description			Remark
18	1-792-602-11 CORD (WITH CONNECTOR) (SUB OUT)					18	1-790-355-52	CORD (WITH CONNECTOR) (RCA) (SUB OUT)
							$				$
21	3-035-250-02	SCREW (LOCK)				21	3-047-812-01	SCREW (LOCK)
							$
						* 25	3-049-439-02	SHEET (IC), RADIATION
										$

Page 49.

		INCORRECT				CORRECT
		#6				#6
		#6					#6
		54		67			54
				#
Ref. No.	Part No.	Description	Remark	Ref. No.	Part No.	Description	Remark
* 66	3-041-371-02	SHEET (REFLECTOR)		* 66	3-041-371-11	SHEET (REFLECTOR)
					$
				67	3-045-596-01	CUSHION (OFF)
						$
2

Page 50.

		INCORRECT				CORRECT
	C				C
104				104					M903
			M903
107				111
				#
							107
		#7					#7
		#7	#8			#7	#	112	#8
Ref. No.	Part No.	Description	Remark	Ref. No.	Part No.	Description			Remark
				* 111	3-045-857-01	HEAT SINK (CD)
							$
				112	3-046-626-01	SHEET, RADITION
							$

Page 64.

		INCORRECT				CORRECT
Ref. No.	Part No.	Description	Remark	Ref. No.	Part No.	Description	Remark
18	1-792-602-11 CORD (WITH CONNECTOR) (SUB OUT)			18	1-790-355-52	CORD (WITH CONNECTOR) (RCA) (SUB OUT)
					$		$

3

2. CHANGE OF CIRCUIT BOARDS

When performing service and inspection, check the part number of the main, DSO, sub (CD) and key boards.

2-1. DISCRIMINATION

MAIN BOARD (SIDE A)

Main board part No.

Former : 1-677-862-11

New : 1-677-862-12

SUB(CD) BOARD (SIDE A)

Sub(CD) board part No.

Former : 1-677-863-11

New : 1-677-863-12

KEY BOARD (SIDE A)

Key board part No.

Former : 1-677-058-12

New : 1-677-058-13

DSO BOARD (SIDE A)

DSO board part No. Former : 1-677-864-11 New : 1-677-864-12

4

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is printed in each block.)

(	) : 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 Ω and 1/4 W or less unless otherwise specified.

•% : indicates tolerance.

•f : internal component.

•C: panel designation.

•U : B+ Line.

•Power voltage is dc 14.4V and fed with regulated dc power supply from ACC and BATT cords.

•Voltages are taken with a VOM (Input impedance 10 MΩ ).

Voltage variations may be noted due to normal production tolerances.

•Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal production tolerances.

•Circled numbers refer to waveforms.

•Signal path. F : FM f : AM

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 on the pattern face side seen from 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.

5 5

CDX-C8050X

2-2. PRINTED WIRING BOARD — MAIN SECTION —

• Semiconductor Location (Side A)

Ref. No.	Location		Ref. No.	Location
D101	I-4		IC701	J-10
D102	I-4		IC702	H-11
D104	H-5
D105	F-8		Q101	I-4
D106	B-2		Q102	H-4
D107	B-1		Q103	H-4
D108	K-3		Q106	H-4
D109	J-3		Q108	E-8
D201	G-12		Q109	E-8
D202	D-13		Q111	K-7
D205	F-12		Q112	J-4
D301	C-6		Q113	K-4
D302	D-7		Q201	F-13
D352	C-8		Q202	E-13
D353	C-7		Q203	E-12
D354	C-8		Q204	E-12
D401	H-5		Q205	E-13
D601	G-7		Q206	D-13
D602	H-7		Q207	D-13
D603	F-8		Q209	F-13
D607	F-7		Q351	K-3
D608	G-7		Q352	C-8
D609	F-7		Q353	C-7
D610	G-7		Q354	C-6
D614	G-8		Q355	C-7
D701	J-12		Q356	B-10
D702	H-11		Q357	B-10
D703	I-13		Q358	B-11
D751	K-12		Q359	B-11
D752	J-12		Q360	C-12
D753	K-13		Q361	D-12
D754	K-11		Q363	C-5
D755	K-11		Q364	C-5
D756	J-12		Q365	D-5
D757	J-12		Q366	D-4
D758	K-13		Q403	H-6
D759	K-13		Q407	F-5
D760	J-13		Q601	G-7
D761	K-11		Q602	H-7
D762	J-13		Q603	F-7
			Q604	F-8
IC301	G-10		Q605	D-2
IC302	I-3		Q701	J-12
IC303	D-9		Q702	J-13
IC304	D-11		Q703	I-13
IC305	D-10		Q705	H-13
IC502	I-7		Q901	I-13
IC503	J-5		Q902	J-13
IC504	J-5		Q903	J-13
IC601	G-7

6 6

CDX-C8050X

<Page 31>
	• Semiconductor
	Location (Side B)
	Ref. No.	Location
	D103	G-3
	D355	B-7
	D356	B-7
	D357	B-7
	D358	B-6
	D359	B-8
	D360	B-7
	D361	B-8
	D362	B-8
	D363	B-2
	D502	J-8
	D604	C-2
	D605	B-2
(Page 12)	D606	C-2
	D611	D-1
	D612	D-2
	D613	D-2
	IC351	B-7
	Q104	F-4
	Q105	G-3
	Q107	E-8
	Q110	B-1
	Q402	G-5
	Q406	F-5
	Q704	J-13

(Page 14)

7 7

CDX-C8050X

2-3. SCHEMATIC DIAGRAM — MAIN SECTION (1/4) — • Refer to page 46 of Service manual for IC Block Diagrams.

(Page 13)

(Page 9)

(Page 10)

Note:

• Voltage is dc with respect to ground under no-signal (detuned) condition.

no mark : FM

(	) : AM
	: Impossible to measure

8 8