Pioneer SXSW-55, SXSW-77, SXSW-950 Service manual

- VOLUME +

AUDIO INPUT SURROUND

STANDBY/ON

SX-SW77

ORDER NO.

RRV3158

AUDIO MULTI-CHANNEL RECEIVER SUBWOOFER

SX-SW77

SX-SW55

SX-SW950

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model	Type	Power Requirement	Remarks
SX-SW77	WYXCN	AC220-240V
SX-SW77	WVXCN	AC220-240V
SX-SW55	WYXCN	AC220-240V
SX-SW55	WVXCN	AC220-240V
SX-SW950	KUXCN	AC120V

For details, refer to "Important Check Points for Good Servicing".

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.

PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2005

T-ZZK JUNE 2005 printed in Japan

1

2

3

4

SAFETY INFORMATION

A

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

WARNING

BThis product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 – Proposition 65

NOTICE

(FOR CANADIAN MODEL ONLY)

Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation.

REMARQUE

(POUR MODÈLE CANADIEN SEULEMENT)

C Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces de remplacement doivent avoir la même désignation.

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be performed for the continued protection of the customer and ser vice technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage

c u r r e n t t e s t e r s u c h a s S i m p s o n M o d e l 2 2 9 - 2 o r

D

equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.

			Reading should
		Leakage	not be above
			0.5 mA
		current
E	Device	tester
	under
	test
	Test all
	exposed metal
	surfaces
	Also test with
	plug reversed
	(Using AC adapter		Earth
	plug as required)		ground

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement par ts which have these special safety characteristics are identified in this Service Manual.

Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual.

The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards.

Product Safety is continuously under review and new instructions are issued from time to time. For the latest infor mation, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.

F

2	SX-SW77

1

2

3

4

5

6

7

8

[Important Check Points for Good Servicing]

In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris.

Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs.

In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages.

If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary.

0 Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.

Please pay attention to your surroundings and repair safely.

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.

Adjustments should be performed in accordance with the procedures/instructions described in this manual.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance.

Make sure the proper amount is applied.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.

5. Shipping mode and Shipping screws

A

B

C

D

E

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

F

						3
		SX	-SW77		7
5	6					8

	1	2	3	4
	CONTENTS
	SAFETY INFORMATION .....................................................................................................................................			2
	1. SPECIFICATIONS ............................................................................................................................................			4
A	2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................			6
	2.1 PACKING			6
	2.2 EXTERIOR.................................................................................................................................................			8
	2.3 DISPLAY UNIT.........................................................................................................................................			10
	3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................			12
	3.1 OVERALL WIRING CONNECTION DIAGRAM AND BLOCK DIAGRAM ................................................			12
	3.2 MAIN ASSY (1/5) .....................................................................................................................................			14
	3.3 MAIN ASSY (2/5) .....................................................................................................................................			16
	3.4 MAIN ASSY (3/5) .....................................................................................................................................			18
	3.5 MAIN ASSY (4/5) .....................................................................................................................................			20
	3.6 MAIN ASSY (5/5) .....................................................................................................................................			22
	3.7 AC INLET, CONNECT and FL ASSYS ....................................................................................................			24
B	3.8 POWER SUPPLY UNIT............................................................................................................................			26
	3.9 WAVEFORMS ..........................................................................................................................................			28
	4. PCB CONNECTION DIAGRAM .....................................................................................................................			29
	4.1 MAIN ASSY .............................................................................................................................................			30
	4.2 AC INLET and CONNECT ASSYS ..........................................................................................................			34
	4.3 FL ASSY ..................................................................................................................................................			35
	4.4 POWER SUPPLY UNIT............................................................................................................................			36
	5. PCB PARTS LIST ...........................................................................................................................................			38
	6. ADJUSTMENT ...............................................................................................................................................			40
	7. GENERAL INFORMATION .............................................................................................................................			41
	7.1 DIAGNOSIS .............................................................................................................................................			41
C	7.1.1 TEST MODE ......................................................................................................................................			41
	7.1.2 SPECIFICATIONS OF SPEAKER SETUP ........................................................................................			43
	7.1.3 PROPOSAL OF DSP ERROR DISPLAY...........................................................................................			44
	7.1.4 CIRCUIT DESCRIPTION OF DIGITAL AMP. SECTION ....................................................................			45
	7.1.5 SPECIFICATIONS FOR THE PROTECTION CIRCUITS FOR THE DIGITAL AMPLIFIER ...............			46
	7.1.6 CONDITIONS FOR SWITCHING THE ROTATION SPEED OF THE FAN ........................................			47
	7.1.7 DISASSEMBLY..................................................................................................................................			48
	7.2 IC .............................................................................................................................................................			51
	8. PANEL FACILITIES ........................................................................................................................................			67

D 1. SPECIFICATIONS

SX-SW950

• Amplifier section

RMS Power Output :

Front, Center, Surround . . . . . . . . . . . . 60 W per channel (1 kHz, 10 % THD, 6 Ω)

Subwoofer . . . . . . . . . . . . 60 W (200 Hz, 10 % THD, 6 Ω) FTC Power Output :

Front, Center, Surround . . . . . . . . . . . . 50 W per channel (200 Hz, - 20 kHz 1 % THD, 6 Ω)

Subwoofer. . . . . . . 50 W (45 Hz - 200 Hz, 1 % THD, 6 Ω)

E

•FM tuner section

Frequency range . . . . . . . . . . . . . . . . 87.5 MHz to 108 MHz Antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Ω, unbalanced

•AM tuner section

Frequency range . . . . . . . . . . . . . . . . 530 kHz to 1,700 kHz Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna

• Subwoofer section

	Enclosure. . . . . . . . . . . . . . . . . . . . . .	. . Bass-reflex floor type
		(magnetically shielded)
	System . . . . . . . . . . . . . . . . . . . . . . .	. . 16 cm 1-way system
	Speaker . . . . . . . . . . . . . . . . . . . . . . .	. . . . 16 cm cone type
F	Nominal impedance . . . . . . . . . . . . . .	. . . . . . . . . . . . . . 6 Ω
	Frequency range . . . . . . . . . . . . . . . .	. . . . 25 Hz to 1.0 kHz
	Maximum Input Power . . . . . . . . . . .	. . . . . . . . . . . . . 60 W

•Miscellaneous

Power requirements. . . . . . . . . . . . . . . . AC 120 V, 50/60 Hz Power consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 W Power consumption in standby . . . . . . . . . . . . . . . . . . 0.2 W

Dimensions . . . . . 7 7 / 8 (W) x 14 3 / 4(H) x 17 3 / 16 (D) in. 200 (W) x 375 (H) x 437 (D) mm Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 lb. 13 oz. 9.0 kg

•Accessories

Remote control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Display unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 AA/R6 dry cell batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Coaxial cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Display cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 AM loop antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 FM wire antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Warranty card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Operating instructions

4	SX-SW77

1

2

3

4

5 6 7 8

	SX-SW77		• Miscellaneous
	• Amplifier section		Power requirements		AC 220-240 V, 50/60 Hz
	RMS Power Output :			. . . . . .
			Power consumption		51 W
	Front, Center, Surround	110 W per channel		. . . . .
			Power consumption in standby		0.4 W	A
		(1 kHz, 10 % T.H.D., 3Ω)
	Subwoofer		Dimensions. . . . . . . . . . . . .	200 (W) x 375 (H) x 437 (D) mm
		70 W (200 Hz, 10 % T.H.D., 3Ω)	Weight. . . . . . . . . . . . . . . . .	. . . . . .	. . . . . . . . . . . . . . 9.0 kg

Front, Center, Surround

60 W per channel

•

Accessories

. . . .

Remote control

1

(1 kHz, 10 % T.H.D., 6Ω)

. . .

. . .

Subwoofer

60 W (200 Hz, 10 % T.H.D., 6Ω)

. . . . . . . . . . . . . . . . . . . . . . . . . . .Display unit

. . .

. . .

. . . . .1

. . . . . .

AA/R6 dry cell batteries

2

•

FM tuner section

. . .

. . .

Audio cable (red/white) . . . . . . . . . . . . . . . . . .

. .

.

. . .

. . . . 1

Frequency range . . . .

. . . . . . . .

. . .

. 87.5 MHz to 108 MHz

Optical cable. . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

.

. .

. . . . .1

Antenna. . . . . .

. . . . . .

. . . . . . .

. . . .

. . . . 75Ω, unbalanced

Control cable . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

.

. . .

. . . . 1

•

AM tuner section

Display cable . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

.

. .

. . . . .1

AM loop antenna

1

Frequency range

531 kHz to 1,602 kHz

.

. .

. .

B

. . . . . . .

. . . .

FM wire antenna

1

Antenna

Loop antenna

.

. .

. .

. . . . . .

. . . . . . .

. . . .

Power cord

1

. .

. .

.

•

Subwoofer section

Warranty card. . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. .

.

. . . . .1

Enclosure . . . .

. . . . . .

. . . . . . .

. . . .

. .Bass-reflex floor type

Operating instructions

System

(magnetically shielded)

Note

. . . . . .

. . . . . . .

. . . .

. .16 cm 1-way system

• Specifications and design subject to possible

Speaker . . . . . .

. . . . . .

. . . . . . .

. . . .

. . . . .16 cm cone type

Nominal impedance. . .

. . . . . . .

. . . .

. . . . . . . . . . . . . . . . 6Ω

modification without notice, due to improvements.

Frequency range . . . . .

. . . . . . .

. . . .

. . . . 25 Hz to 1.0 kHz

Manufactured under license from Dolby

.Maximum Input Power

. . . . . .

. . . . .

. . . . . . . . . . . . . 60 W

Laboratories."Dolby", "Pro Logic" and the double-D symbol

are trademarks of Dolby Laboratories.

"DTS" and "DTS Digital Surround" are registered

Receiver subwoofer (SX-SW77)

trademarks of Digital Theater Systems, Inc.

C

FM antenna

(ADH7030)

AM loop antenna

RECORDER

RECEIVER

(ATB7013)

MUTE

–

VOLUME

+

HDD

DVD FM/AM

AUDIO INPUT

Remote control

CHANNEL

(SX-SW77 : AXD7417)

VIDEO INPUT

(SX-SW55

HELP

GUIDE

INFO

/WYXCN : AXD7419) DISC NAVIGATOR

CLEAR

TUNE +

DVD MENU

(SX-SW55

RDS DISP

SETUP

/WVXCN : AXD7420)

TOP MENU

SYSTEM

HOME

ENTER

ST +

ST -

(SX-SW950 : AXD7425) MENU

RETURN

TEST TONE

TUNE -

DISPLAY

D

BACK CM SKIP

PREV

NEXT STEP/SLOW

REC STOP REC REC MODE

ONE TOUCH

COPY

Display unit

SURROUND

ADVANCED SOUND

TIMER REC

AUDIO

SUBTITLE ANGLE

PLAY MODE

TV

INPUT

CHANNEL VOLUME

TV/DVD

SHIFT

TV CONTROL

TV DIRECT

REC

ANTENNA

FM

AM

UNBAL75Ω

LOOP ANTENNA

AUDIO INPUT

SYSTEM CONTROL

SPEAKERS

DIGITAL

DVD/DVR 1 DVD/DVR 2 DIGITAL

ANALOG

CONNECTOR

R SURROUND L

OUTSUB WOOFER

(COAXIAL) (OPTICAL) (OPTICAL)

Audio cable (red/white) (ADE7117)

L

E

R

USE ONLY WITH

DISPLAY UNIT

CENTER R FRONT L		COMPONENT VIDEO OUT
AC IN	AV 1 (RGB) - TV	Y	PB	IN	OUT
AV 2 (INPUT 1/DECODER)					ANTENNA

G-LINK	CONTROL	DIGITAL	R	L			R	L
AC IN		OUT
		OPTICAL
	IN			AUDIO	VIDEO	S-VIDEO	AUDIO	VIDEO	PR
									S-VIDEO

INPUT 3

OUTPUT

DVD Recorder

(DVR-530H-AV)

Control cable	Optical cable (ADE7116)
(ADE7114)

Display cable (ADE7113)

F

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		SX	-SW77		7
5	6					8

	1	2	3	4
2. EXPLODED VIEWS AND PARTS LIST
NOTES:	Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
	The mark found on some component parts indicates the importance of the safety factor of the part.
A	Therefore, when replacing, be sure to use parts of identical designation.
	Screws adjacent to	mark on product are used for disassembly.
	For the applying amount of lubricants or glue, follow the instructions in this manual.
	(In the case of no amount instructions, apply as you think it appropriate.)
2.1 PACKING
SX-SW77				21
only
	3
B	8			13	WVXCN,
		22
					KUXCN
					only
	7	22		15 WYXCN
WYXCN,
				16	only
KUXCN	6
only				17

	SX-SW77
	only	4	For WVXCN type
	SX-SW77,	22	6
	SX-SW55		22
		2
C	only		18	WYXCN
	SX-SW55,	12	19	only
	SX-SW950	5
	only

	1
	11	27
		24 (1/2)	9
			10
		24 (2/2)	20 WYXCN,
D		25 (1/2)	WVXCN
			only
		25 (2/2)

23 28

E

F

26

6	SX-SW77

1

2

3

4

	5	6
(1) PACKING SECTION PARTS LIST
Mark No.	Description	Part No.
1	Display Cable	ADE7113
2	Control Cable	See Contrast table (2)
3	Optical Cable	See Contrast table (2)
4	Audio Cable (red/white)	See Contrast table (2)
5	Coaxial Cord	See Contrast table (2)
> 6	AC Power Cord	See Contrast table (2)
7	FM Wire Antenna	ADH7030
8	AM Loop Antenna	ATB7013
9	Remote Control Unit	See Contrast table (2)
10	Battery Cover	AZA7424
NSP 11	Dry Cell Battery (R6P, AA)	VEM1010
12	DISPLAY Unit	See Contrast table (2)
13	Operating Instructions	See Contrast table (2)
	(Enslish)
14	• • • • • •
15	Operating Instructions	See Contrast table (2)
	(German)

	7	8
Mark No.	Description	Part No.
16	Operating Instructions	See Contrast table (2)
	(Spanish)		A
17	Operating Instructions	See Contrast table (2)
	(French)
18	Operating Instructions	See Contrast table (2)
	(Italian)
19	Operating Instructions	See Contrast table (2)
	(Dutch)
20	Label (WEEE)	See Contrast table (2)
NSP 21	Warranty Card	See Contrast table (2)
NSP 22	Polyethylene Bag	Z21-038
NSP 23	Polyethylene Bag	AHG7126	B
24	Pad T	AHA7448
25	Pad B	AHA7449
26	Packing Case SW	See Contrast table (2)
27	Packing Sheet	AHG7125
28	Packing Sheet L	AHG7128

C

(2) CONTRAST TABLE

SX-SW77/WYXCN, WVXCN, SX-SW55/WYXCN, WVXCN and SX-SW950/KUXCN are constructed the same except for the following:

	Mark	No.	Symbol and Description	SX-SW77/	SX-SW77/	SX-SW55/	SX-SW55/	SX-SW950/
				WYXCN	WVXCN	WYXCN	WVXCN	KUXCN
		2	Cord with Mini Plug	ADE7114	ADE7114	ADE7114	ADE7114	Not used
		3	Optical Fiber Cable	ADE7116	ADE7116	Not used	Not used	Not used
		4	Cord with Plug	ADE7117	ADE7117	Not used	Not used	Not used
		5	Coaxial Cord	Not used	Not used	ADE7115	ADE7115	ADE7115
	>	6	AC Power Cord	ADG1154	ADG1156	ADG1154	ADG1156	ADG7022
		9	Remote Control Unit	AXD7417	AXD7417	AXD7419	AXD7420	AXD7425
		12	DISPLAY Unit	AXX7204	AXX7204	AXX7204	AXX7204	Not used
	NSP	12	DISPLAY Unit	Not used	Not used	Not used	Not used	AXX7205
		13	Operating Instructions (English)	Not used	ARB7342	Not used	ARB7343	ARE7385
		15	Operating Instructions (German)	ARC7636	Not used	ARC7638	Not used	Not used
		16	Operating Instructions (Spanish)	ARC7637	Not used	ARC7639	Not used	Not used
		17	Operating Instructions (French)	ARC7646	Not used	ARC7649	Not used	Not used
		18	Operating Instructions (Italian)	ARC7647	Not used	ARC7650	Not used	Not used
		19	Operating Instructions (Dutch)	ARC7648	Not used	ARC7651	Not used	Not used
		20	Label (WEEE)	ARW7322	ARW7322	ARW7322	ARW7322	Not used
	NSP	21	Warranty Card	ARY7065	ARY7065	ARY7065	ARY7065	ARY7045
		26	Packing Case SW	AHD8375	AHD8375	AHD8381	AHD8381	AHD8392

D

E

F

						7
		SX	-SW77		7
5	6					8

1	2		3	4
2.2 EXTERIOR
				10
			25	38
A		30

6

37

23

24

B

20

36

26

31

39

39

39 4

C

29

18

5 39

F

39 39

		15	39
		16	39
	13	39
		40	14

39

D
										Cleaning paper
			39							GED-008
							39
						39			11
					39		1
	39
				B	27
			A	9		39	A
		E		21
					17	B				7
									39	B
					22			8
									A
E		3					39
				19		2
							39
						19

12

F

28

NON-CONTACT SIDE

CONTACT SIDE

8	SX-SW77

1

2

3

4

	5	6
(1) EXTERIOR SECTION PARTS LIST
Mark No.	Description	Part No.
1	MAIN Assy	See Contrast table (2)
2	AC INLET Assy	See Contrast table (2)
> 3	POWER SUPPLY Unit	AWR7037
4	FM/AM TUNER Unit	See Contrast table (2)
5	11P Flexible Cable	ADD7506
6	Connecting Cord	ADX7484
7	2P Lead with Housing	ADX7485
8	11P Lead with Housing	ADX7486
9	2P Lead with Housing	ADX7487
10	Speaker	A14LR75-51D
11	DC Fan Motor	VXM1121
NSP 12	Chassis B	ANA7179
NSP 13	Chassis T	ANA7180
14	Rear Panel SW	See Contrast table (2)
15	Screw (3 x 11.5)	ABA7129
16	Rubber Bushing	AEB7369
17	Cushion F	AEB7370
18	Cushion TX	AEB7371
19	Rivet	AEC7514
20	Packing	AEC7548

		7	8
	Mark No.	Description	Part No.
	NSP 21	Barrier SW	AEC7552
	NSP 22	Barrier AC	AEC7553	A
	NSP 23	Duct Ring	AMR7511
	NSP 24	Paper Tube 60	AMR7512
	NSP 25	Acoustic Absorbent	AMV7001
	NSP 26	Mesh	ANC8354
	NSP 27	Ferrite Clamp	DTH1158
	NSP 28	PCB Holder	PNW2029
	NSP 29	Cosmetic Baffle	See Contrast table (2)
	NSP 30	Cabinet	AMM7009
	31	Pioneer Name Plate	VAM1152	B
	32	Baffle Assy	See Contrast table (2)

33• • • • •

34• • • • •

35• • • • •

36	Screw	BBZ40P120FNI
37	Screw	BYC40P160FNI
38	Screw	BYC40P200FNI
39	Screw	PBZ30P080FTC
40	Screw	PSZ30P060FNI

C

(2) CONTRAST TABLE

SX-SW77/WYXCN, WVXCN, SX-SW55/WYXCN, WVXCN and SX-SW950/KUXCN are constructed the same except for the following:

	Mark	No.	Symbol and Description	SX-SW77/	SX-SW77/	SX-SW55/	SX-SW55/	SX-SW950/	D
				WYXCN	WVXCN	WYXCN	WVXCN	KUXCN
		1	MAIN Assy	AWK7883	AWK7883	AWK7883	AWK7883	AWK7884
		2	AC INLET Assy	AWU8273	AWU8273	AWU8273	AWU8273	AWU8274
		4	FM/AM TUNER Unit	AXX7170	AXX7170	AXX7170	AXX7170	AXX7172
		14	Rear Panel SW	ANC8323	ANC8323	ANC8356	ANC8356	ANC8362
	NSP	29	Cosmetic Baffle	AMB7903	AMB7903	AMB7903	AMB7903	AMB7905
		32	Baffle Assy	AXG7278	AXG7278	AXG7278	AXG7278	AXG7279

E

F

						9
		SX	-SW77		7
5	6					8

1

2

3

4

2.3 DISPLAY UNIT

A

11

10

4

B

D

7

8 (1/2)	C
2

10

3

5

1

8 (2/2)

C

9

6

12

D

E

F

10	SX-SW77

1

2

3

4

	5	6	7	8
(1) DISPLAY UNIT PARTS LIST
Mark No.	Description	Part No.
1	FL Assy	AWU8271
2	CONNECT Assy	AWU8272		A
3	Leg	AEB7368
4	Window	AAK8285
5	FL Filter	AEC7535
6	Display Panel	AMB7899
7	Display Cover	AMC7059
8	PWR Button Assy	AXG7260
9	Pioneer Name Plate	VAM1152
10	Screw	BPZ30P080FNI
11	Screw	PSZ30P060FNI		B
12	DISPLAY Unit	See Contrast table (2)

(2) CONTRAST TABLE

SX-SW77/WYXCN, WVXCN, SX-SW55/WYXCN, WVXCN and SX-SW950/KUXCN are constructed the same except for the following:

	Mark	No.	Symbol and Description	SX-SW77/	SX-SW77/	SX-SW55/	SX-SW55/	SX-SW950/
				WYXCN	WVXCN	WYXCN	WVXCN	KUXCN
		12	DISPLAY Unit	AXX7204	AXX7204	AXX7204	AXX7204	Not used
	NSP	12	DISPLAY Unit	Not used	Not used	Not used	Not used	AXX7205

C

D

E

F

						11
		SX	-SW77		7
5	6					8

A

B

C

D

E

F

1

2

3

4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 OVERALL WIRING CONNECTION DIAGRAM AND BLOCK DIAGRAM

E SW POWER SUPPLY (AWR7037)

B11B-PH-K-S

VSF+12 1

VS+12 2

BEAT CUT 3

VE+5 4

GND 5

VS+3R3 6

POWER CONT 7

GNDD 8

FL DC- 9

FL DC+ 10

VFDP 11

		B2P-VH
		+B	1
NEUTRAL		GND	2
	LIVE
2	1	B2P3S-VH

ADX7487

CN5

2 1 B2P3S-VH

B AC INLET ASSY WYXCN,WVXCN:AWU8273

KUXCN:AWU8274

	NEUTRAL	LIVE
AN1	2	1

WYXCN,WVXCN:XKP3084

KUXCN:XKP3085

AC CORD

ADX7486

ADX7485

FAN

VXM1121

					CN5602
		1		2	B2B-PH-K-S
		FAN+		GNDF
														RDSDATA,RDSCLK,RDSPOW
															XADPDN
CN1001
B11B-PH-K-S
1								INPUTSELA
2
3
4												7				MCLK
5											A/D CONVERTER				15
													IC3003			ADDATA
												PCM1803DB			12
6
													1	2
7
8
9								10					3	13
10											INPUT SELECTOR
11													IC3001
		2	9	16								TC4052BFN
										5	14			1	12
		RDS
	IC5701
CN3201	BU1924FS
					4					TX
B2P-VH
1
2				CLK		GND				VSM	RDS	GND
CN5701 9604S-11C	CE	DI			DO		TXL	+9V	TXR				3001
	1			3		5		7		9		11
		2			4		6		8	10
														ANALOG INPUT
					11pin FFC									(SX-SW950 AUX)
		ADD7506
		2			4		6		8	10
	1			3		5		7		9		11

F TUNER MODULE

WYXCN, WVXCN:AXX7170

KUXCN:AXX7172

ANALOG AUDIO SIGNAL

DIGITAL or PWM AUDIO SIGNAL

COMMUNICATION LINE

12	SX-SW77

1

2

3

4

5

6

7

8

÷When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".

÷The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

÷: The power supply is shown with the marked box.

A MAIN ASSY

WYXCN,WVXCN:AWK7883
	KUXCN:AWK7884
	6		49	FLDAT
	64		7	KEY&IR
	65		19
		u-COM
	75		69
	76	IC5501	77	SHUTDOWN/XOTW
DIRDO,DIRERR	67	PDC128A	79
			27
	100
			28	DASDA,DASCL,XDAPDN,DSPMUTE
			35
			71

74

5V -> 3V

IC951

TC74VHC08FTS1

	17 22							DSP			13 14 24 25
14									5		29		DIGITAL AUDIO
			DIR					IC801
				12 FDTI					6		30					37
13		IC601				1	DSPC56371AF180		7		31	PWM PROCESSOR
	AK4117VF							73					IC3101
													TAS5508APAG
	3			5							63
	SELECTOR										PWM7.8		PWM2.4		PWM1.3
	8
	IC4602		4	DIGSEL
	TC74VHC00FTS1 12
	2		5								23-25		23-25			23-25
											POWER IC		POWER IC		POWER IC
JA4603 GP1FAV51RKBF	JA4602	GP1FAV51RKBF	JA4601 VKB1159			RKN1004 JA5951			CN3211	AKE7116	IC3401		IC3301		IC3201
											TAS5112ADCA		TAS5112ADCA		TAS5112ADCA
											50 51	34 35	50 51	34 35	50 51	34 35
											46 47	38 39	46 47	38 39	46 47	38 39
											- + - + - + - + - + - +
						SR OUT
	DIGITAL INPUT										SW	C	SR	FR	SL	FL
DIGITAL		DVD/DVR2		DVD/DVR1
	(OPT)		(OPT)	(COAX)
PC/GAME			DTV	DVD	SX-SW950
D FL ASSY												C CONNECT ASSY
								CN5901			CN5651		(AWU8272)
	(AWU8271)							XKP3077			XKP3066
								VE+5	1		13
								XFLCS	2		12
						IC5902		FLCK	3		11
						GP1UM27XK0VF		FLDATA	4		10				CN5652
								FLDC-	5		9
															AKP7131
					IR			FLDC+	6		8
								GNDD	7		7				11	7	1
								KEY1	8		6				8	5	2
	S5961		S5962	S5963	S5964	S5965
								VFDP	9		5				9		3
STANDBY/ON			VOL-	VOL+	INPUT	SURROUND										6
				SELECTOR				REMOCON	10		4				12		4
																10
								GNDS	11		3
	FL TUBE				FL DRIVER			GNDS	12		2
	V5901 AAV7104			IC5901		PT6315		KEY2	13		1

IR

CN5601

AKP7131

12 11

9 8

10 7

6 5

4 3 2 1

1.GNDD

2.GNDD

3.VFDP

4.KEY2

5.FLDATA

6.REMOCON

7.XFLCS

8.FLCK

9.VE+5

10.KEY1

11.F+

12.F-

ADE7113

A

B

C

D

E

F

						13
		SX	-SW77		7
5	6					8

1

2

3

4

3.2 MAIN ASSY (1/5)

VS+3R3

A

100

99

98

96

94

R5584

RAB4C221J

R5592 RAB4C221J

87

86

85

84

VE+5

IC5502

RESET

R5597 STBY

220

10k

R557410k

220

R5583 STBY

R5582 STBY

R5581 STBY

PST3245

R5594 220

R5595 220

R5596 220

220

VU+5

0.1/16

KN5501

R5575

VNF1109

5

4

R5613

C5581

100/16

C5582

1

CHASSIS GND

1

2

3

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

R5580

STBY

R5505

FANCONT DIRDO (DMUTECHECK) XDIRCS TXPOWER XDIRRST

VDD3

VSS3

BEATCUT2

BEATCUT1

C5579

R5579

220

79

10k

NC

(FREQCONT1)

0.01

R5577

STBY

B

R5506

NC

XOTW

R5578

STBY

R5501

STBY

NC

(DC DET)

C5577

77

STBY

PDNDET

(SWMIX) (DTSMIX) FLASHCLK

FLASHDO

FLASHE/D

(FREQCONT2) FLCONT

SHUTDWN

R5502

220

76

P_ON

XADPDN

6

R5503

220

0.01

R5573

RAB4C221J

75

RDSCLK

INPUTSELA

7

R5504

220

220

74

R5508

REMOCON

DIGSEL

VE+5

XRESET

(PSVC)

72

C5507 R5507STBY

0

2.2k

VU+5

C5509

10 9 87654321

XT1

PWRCONT2

(PWRCONT1)

(PWRERR)

XDAMUTE

71 727475767773787980

R5570

0.1/16

RAB4C221J

220

71

C5508

XT2

XDAPDN

0.01

R5520 10k

70

DESTINATION

18 17 16 15 14 13 12 11

VSS1

XDARST

63 64 65 66 67 68 69 70

X5501

C5518

*

R5516 * R5514 *

CF1

KEY1

R5518

220

69

MODEL

R5515 * R5513

ASS7034

EEP_DI

10MHz

CF2

0.01

R5567

IC5501

DIRERR

STBY R5511

VDD1

PDC128A

TXIDATA

220

66

SIMUKE

LC875BJ0A

65

MODEL

RDSDATA

R5562

RAB4C221J

64

R5517

-COM

RDSPOW

NC

220

10k

NC

62

R5519

220

NC

19

C5519

0.01

KEY2

TXODATA

C

19

62

R5561

1k

61

NC

TXCLK

20

61

21

R5521

220

C5521

0.01

PCONFIG

EEP_SK

21

60

22

R5522

C5522

STBY

XPROTECT

NC

22

59

23

STBY

R5557

RAB4C221J

C5523

100p

DSPDI

EEP_DO

24

25 24 23

56 57 58

220

CH

220

DSPDO

ADMD

FLDAT

XFLCS

EEP_CS

25

R5523

C5526

100p

DSPCK

NC

NC

NC

NC NC

VSS2

C5556

NC

VDD2

0.1/16

CH

27

26

55

RAB4C221J

DASDA

NC

VU+5

30 29 28 27

MUTE

51 52 53 54

28

R5525

220

DASCK

35 XDSPMUTE

38 DSPHREQ

NC

46 XDSPRST

87

45 XDSPSS

52

NC

43 STEST

44 UTEST

TXCE

XDEC

40 VDD4

51

86

VE+5

NC

FLCLK

R5549

RAB4C221J

50

96

R5524

47k

31

32

33

34

(LED)36

37

VSS439

41NC

42NC

47

48

49

50

220

49

C5524

C

10/50

B

R5530 220

R5532 220

37 R5535 220

38 R5536 220

C5525

Q5525

STBY

GNDD

DTC143EUA

E

C5539

R5537

RAB4C221J

D

STBY

0.1/16

220

45

46

DSP

VS+5

VFLDC+

GNDD

UCOM

67

33

35

VE+5

VS+5

DIRERR

VS+3R3

UTEST

VS+12

C5606

STBY

R5543 10k

R5544 10k

STEST

SHORT for

TEST POINT

C5605 STBY

R1416

STBY

R1415

10k

PROTECT

C5607

STBY

XFLCS

50

Q1413

STBY

FLCLK

51

22

DTC124EUA

R1411

Q1402

10k

CN5601

2SA1576A(QR)

D1402

3

1

XPROTECT

UDZS4R7(B)

2

R1407

4.7k

R1405

10k

R1401

15k

AKP7131

D1412

DAN202K

E

11

8

9

12

C1415

STBY

D1415

1SS355

E2

C CN5652

C1413

STBY

1SS355

VFLDC-

69

KEY1

Q1410(1/2)

D1401

7

10

Q1410(2/2)

Q1401

5

6

RMC

UMD2N

B2

C UMD2N

19

KEY2

C2

B

2SA1576A(QR)

1

2

3

4

R1403

R1402

R1406

47k

10k

E

UDZS15(B)

12k

R5529

DSP MUTE

R5531

D1410

49

FLDAT

CHASSIS

D5601 UDZS8R2(B)

D5602 UDZS8R2(B)

220

C

10k

Q5502

R1404

10k

Q5501

B

VFDP

ADMD 33

1.GNDD

D5605 UDZS8R2(B)

E2

DTC124EUA

CH

CH

CH

CH

CH

(2/2)

2.GNDD

UMD2N

XDSPMUTE

35

3.VFDP

UDZS8R2(B) C5603 100p

D5604 UDZS8R2(B) C5604 100p

B2

E

4.KEY2

Q5503 (2/2)

C2

R5528

5.FLDATA

C5601

C5602 100p

D5603

C5609 100p

R5526 10k

D5501

UMD2N

E2

10k

100p

6.REMOCON

DAP202K

7.XFLCS

2

3

DSPMUTE

8.FLCK

1

C2

F

9.VE+5

C5608

C

B2

C

10.KEY1

B

R5527

B

E

STBY

Q5501

10k

11.F+

XDAMUTE

72

(1/2)

12.F-

B

VFDP

E

UMD2N

E

C

Q5503

Q5504

A 1/5

GNDD

(1/2)

UMD2N

DTA124EUA

14

SX-SW77

1

2

3

4

5 6 7 8

3/5

A

1/5 MAIN ASSY

R5513

47k

(WYXCN,WVXCN:AWK7883)

A

*

Destination

WY,WV KU

DSP

R5515

47k

(KUXCN:AWK7884)

NOTES

4-C1

3-D2

* MODEL

ALL

UCOM

R5514

*

A

2/5-5/5

67

R5516

47k

*

All Capacitors are in p-pF or uF

SR OUT

VE+5

unless otherwise specified

Ratings : Capacity(uF)/Voltage(V)

2

L5951

D5951

R5951

Rated Voltage : 50V unless

otherwise specified

R5954 100k

3

QTL1013

1SS355

4.7k

SR OUT

SQ : CKSQ**(2125size)

1

Q5952 E

JA5951

CH : CCSRCH(1608size)

STBY

C5951

2SA1576A(QR) C

B

RKN1004

Q5951 DTC124EUA

C

(others : CKSRYB(1608size))

D5952

R5952

B

JQ : CEJQ

1SS355

1k

R5953

R5955

(others : CEAT)

10k

3.9k

E

All Resistors are in k-k Ω, M-M Ω or Ω

1/8W : RS1/8S***J(3216size)

7

REMOCON

1/10W : RS1/10S***J(2125size)

RMC

(others : RS1/16S***J(1608size)

VS+12

VS+12

R5803

2SA1576A(QR)

Reference voltage value

EEPROM

22k

22k

22k

R5801

Q5801

• It will be described in

.

R5554

• It may fluctuate by the product.

R5804

Q5803

47k

2SC4081(QR)

IC5503

BR93L46RFJ-W

1

CS

VCC

8

0.1/16

GNDD

150

R5802

BEAT CUT

2

SK

NC

7

C5550

VE+5

3

DI

TEST

6

1k

4

DO

GND

5

Q5804

C5549CH

R5805

VSFAN

R5553

47p

2SC4081(QR)

47k

1SS355

CN5602

(VXM1121)

R5806

22k

D5801

B2B-PH-K-S

1

FAN +

GNDD

R5610

TUNER

VSFAN

GNDD

560

AUDIO BUFFER

2

GNDF

R5609

INPUT SELECTOR

GNDF

FAN

560

FAN

VOLTAGE TABLE

R5614

FAN

VS+12

POWER

560

4.98

D5608

D5607

D5606

SUPPLY

1SS355

1SS355

UDZS3R9(B)

12.03

Q5604(1/2)

SR

VS+5

UMF21N

D5609

5.06

C

com

E

Q1301(1/2)

R5611

47k

1SS355

VSF+12

UMF21N

C5610

com

100/16

Modulator

FL DRIVER

C

E

R1301

B

VS+3R3

VU+5

VE+5

D1301

1SS355

B

47k

R5612

3.3k

R1302

560 1/10W

GNDF

CN1001

L1501

C2

B11B-PH-K-S

LFEA220J

B2

22uH

B2

C2

1

VSF+12

C1203

STBY

C1505

100/16

C1501

0.01

C1502

0.1/16

D1501 STBY

Q5604

E2

FAN

2

VS+12

E2

UMF21N(2/2)

VOLTAGE TABLE

3

BEAT CUT

Q1301(2/2)

4

VE+5

UMF21N

5.08

3.31

5

GNDD

CN3

6

VS+3R3

84	PWRCONT2					7	POWER CONT	E
				-22.70
						8	GNDD
			STBY			9	FL DC-
		R5606		R5601		10	FL DC+
		0		100k
85		VFLDC-	R5602			11	VFDP
	FLCONT	R5607	6.8k		Q5603
					2SC4081(QR)

	STBY		R5603	R5604
			100k		KN1001
	VFLDC+	Q5601		STBY
		2SA1602A(EF)	R5605		VNF1109
	FL					CHASSIS GND
		GNDD	680	Q5602	1
				2SA1602A(EF)
	FAN VOLTAGE TABLE

ROTATION	POWER	VOLTAGE		R5608	GNDD
			-19.10	GNDF
LOW	VSF+12	12.3		0
Not Digital Stream.	VSFAN	6.7	-25.30
(The Analog IN is excluded)
			VFDP
LOW	VSF+12	13.1
Analog IN (VOL19 or less)	VSFAN	7.4			A 1/5
HIGH	VSF+12	13.0
VOL20 or more	VSFAN	12.2
				SX-SW77	15
5			6	7	8

A

B

C

D

E

F

1	2	3	4
3.3 MAIN ASSY (2/5)
		ANALOG
		INPUT
A		SELECTOR

A

FUNCTION

L

ANALOG IN

VS+12

H

TUNER

R3009

C3021

0

47/16

VREF

R3007

C3022

0

C3003

STBY

5

+

10

6

0.1/16

-

8

7

R3023

(1/2)

3001

7dB ATT

4

AKB7143

3

(A)

R3001

C3011

R3011

(A)

(A)

R3021

VREF

VSA+5

220k

B

ANALOG

C3005

CH

220p

330

C3007

STBY

R3003

100k

27k

R3013

22k

(TX)

8

7

6

5

4

3

2

IC3002

R3025

0

1

L

2

BA4558F-HT

C3006

STBY

R3004

R3014

TC4052BFN

Y(Lch)

C3023

1/16.0

47/16 C3024

R3026

STBY

INPUT

CH

220p

R3002

C3012 R3012

22k

(TX)

VSS

VEE

INH

Y1

Y3

Y2

Y0

R

1

C3008

100k

R3008

IC3001

C30010.01

R3022

330

10/50

27k

47k

9

10

11

12

13

14

15

16

220k

IC3002

B

A

X3

X0

X(Rch)

X1

X2

VDD

BA4558F-HT

GNDD

C3004

STBY

3

+

4

10

1

R3024

(2/2)

2

-

8

C

Q3001

DTC124EUA

C

B

INPUTSELA

E

GNDD

UCOM

75

D

A 1/5

(TX)

DATARDS 65

RDSCLK6

RDSPOW64

R5701

2.7k

WY,WV

C3019

R3019

47k

only

10/50

(TX)

R5702

2.7k

GNDD

C3020

R3020

47k

10/50

E

2.7k

2.7k

VS+12

R5711

R5712

2SD1858X(QR)

R5707

470

F

CN5701

9604S-11C

VS+5

R5714

0

52

CE

1

RDS

R5715

0

62

DI

2

R5716

0

61

CLK

3

R5710

0

66

R5703

0

Q5703

R5704

100

100

10/50

2

RDSDATA

NC 15

X5701

CH

DO

4

R5717

R5708

IC5701

BU1924FS

C5712

GND

5

0

C5719

1

QUAL

RDSCLK 16

27p

TXL

6

R5718

+9V

7

220

3

VREF

XO 14

ASS7004

C5714

TXR

8

Q5701

4

XI 13

4.332MHz

27p

RDS

VSM

9

2SC4081(QR)

C5706

5

VDD1

VDD2 12

CH

RDS

10

C5705

STBY

C5704 STBY

C5701

100pCH C5709

STBY C5702 STBY C5703 100pCH R5705

STBY

C5707 1000p

C5708

47/16

D5701

UDZS10(B)

R5706

4.7k

0.01

C5716 560p

C5715

0.01

CH

C5720 47/16

R5719

C5713

6

VSS1

VSS2 11

GND

11

0

4700p

7

VSS3

T2 10

WY,WV

8

CMP

T1 9

F

only

A 2/5	GNDD
	WY,WV MODEL ONLY
16	SX-SW77

1

2

3

4

5

6

VSA+5
R3041	0
STBY	3	R3053	1k
D3001
2	1		R3029
C3025
			100
10/50			R3030
			100
1	2

3

D3002

STBY

C3043

STBY

C3044

0.1/16

C3049

STBY

C3050

0.1/16

C3041

STBY

C3042

0.1/16

R3048

C3026
10/50
VSA+5						VS+12
			IC3004
5.04			BA178M05FP
			OUT		IN
C3054	47/16		3	2	1		C3051
		C3053	1/16.0		C3052	1/16.0		STBY
								XADPDN
					GNDD

76

7

8

	A	2/5 MAIN ASSY			4/5
			AUDIO		3/5,
	(WYXCN,WVXCN:AWK7883)
		(KUXCN:AWK7884)				A
					VS+3D

						A/D
						IC3003
C3027	0.01	C3028	0.01		PCM1803DB
				1	VINL	MODE1 20
				2	VINR	MODE0 19
				3	VREF1	FMT1 18
				4	VREF2	FMT0 17
				5	VCC	OSR 16
		0		6	AGND	SCKI 15
				7	PDWN	VDD 14
				8	BYPAS	DGND 13
		C3048	STBY	9	TEST	DOUT 12
				10	LRCK	BCK 11

C3046

0.1/16

C3045

STBY

R3043

0

R3052

R3044	STBY	R3051
		R3049
		R3050

R3045

0

47 MCLK

100(AD)	ADDATA
100	BCK
100	LRCK
R3046

AUDIO

0	R3042	STBY
Q3041
2SA1576A(QR)
R3047	10k

TXPOWER	GNDD
	Q3042
	DTC124EUA
	STBY

94

UCOM

A

B

C

D

(A) (TX)

(AD)

:AUDIO SIGNAL ROUTE (ANALOG IN)

:AUDIO SIGNAL ROUTE (FM/AM)

:AUDIO SIGNAL ROUTE

:AUDIO DATA SIGNAL ROUTE

NOTES

	All Capacitors are in p-pF or uF							E
	unless otherwise specified
		Ratings : Capacity(uF)/Voltage(V)
		Rated Voltage : 50V unless
							otherwise specified
							SQ : CKSQ**(2125size)
							CH : CCSRCH(1608size)
					(others : CKSRYB(1608size))
							JQ : CEJQ
				(others : CEAT)
	All Resistors are in k-k Ω, M-M Ω or Ω
							1/8W : RS1/8S***J(3216size)
							1/10W : RS1/10S***J(2125size)
						(others : RS1/16S***J(1608size)		F

A 2/5

						17
		SX	-SW77		7
5	6					8

1

2

3

4

3.4 MAIN ASSY (3/5)

A

AUDIO

LRCK

BCK

MCLK

VS+1R2

VS+3D

L804

ATL7002

R842

STBY

AL

L803

ATL7002

R841

STBY

C835

100/10

C834

100/16

B

C833

47

C831

R836

C829

1/6.3

0.1/16

0.1/16

R837

C830

C832

C828

RAB4C470J

1/6.3

R852 2.2k

47

DSP

470p

470p

CH

CH

FDTI

(AD)

R801

80

79

78

77

76

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

SDI0

FST

FSR

SCKT

SCKR

VDDIO

GNDIO

HCKT

PC2

VDDCO BUSY 96DTS

GNDCO

PE2

PE5

GNDIO

VDDIO

PE0

SCKT 1

PE1

0.1/16

47

1

SDI1

60

C802

C801

470p

CH

FST_1

2

GNDIO

SDI0_1 59

3

VDDIO

SDI1_1 58

(AD)

CDTO

4 SDO3

COMMOUT0 57

R829

SDTO

(AD)

5

SDO2

COMMOUT1 56

47k

DEC MUTE

37

FDTO

6

SDO1

MCK_STD 55

R802

(AD)

C804

1/6.3

C803

1/6.3

7

SDO0

MUTE 54

C826

1/6.3

C827

1/6.3

RAB4C101J 100 R806 10k R805 10k R804 10k

8

VDDCO

GNDCO 53

C

9

PF8

VDDCO 52

R807

10

PF6

IC801

MODA 51

47k

11

PF7

DSPC56371AF180

MODB 50

12

GNDCO

DSP

MODC 49

R824

STBY C825

13

PF2

MODD 48

0.01

46

14

PF3

RESET 47

R825

15

PF4

PINIT 46

DSP RST

16

PF5

EXTAL 45

100

17

VDDIO

VDDPD 44

C823

C824

C806

0.1/16

C805

470p

CH

18

PF1

GNDPD 43

1/6.3

1/6.3

19

PF0

GNDCO

VDDCO

GNDPP 42

20

GNDSP

GNDIO

VDDIO

HREQ

VDDPA

GNDPA

41

PF9

SCAN

PF10

PB0

PB1

TDO TDI

TCK

TMS

MOSI

MISO

SCK

SS

VDDPP

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

CH C821

470p

C822

R808

STBY

C814

0.1/16

470p

D

R809 STBY

C809

C807

CH

R813

4.7k

470p

1/6.3

QTL1013

C815

C810

L801

CH

0.1/16

C808

1/6.3

R823 100

IC802(2/3)

IC802(1/3)

0.1/16

TC7WU04FU TC7WU04FU

QTL1013

7

8

1

2

8

6

L802

4

4

R817

R822

R810

10k

1M

47k

C813

C817

R819

STBY

R821

470

STBY

100

100

100

C812

0.1/16

X801

STBY

XSS3003

C811

C816

24.576MHz

R811

R812

R814

R815 100

STBY

CH 470p

R818

8

R820

STBY

C819

CH 6p

C820

CH 6p

3

R816 100

5

22

4

IC802(3/3)

TC7WU04FU

NOTES

TP1

TP3

TP5

DIR CS

DIR RST

OSC

DRCK DSP CK DIDI

DSP DI

E

DICS

DIRT

TP2

TP4

23

24

25

45 38

All Capacitors are in p-pF or uF

5-A4

JTAG

unless otherwise specified

DSP

DSP DO

99

98

DSP DI

DSP CK

DSP SS

DSP HREQ

25

R965 23

Ratings : Capacity(uF)/Voltage(V)

A 1/5

IC951

Rated Voltage : 50V unless

TC74VHC08FTS1

otherwise specified

5V

3.3V

100 RAB4C101J

Level Shifter

SQ : CKSQ**(2125size)

1

1A

Vcc

14

CH : CCSRCH(1608size)

2

1B

4B

13

(others : CKSRYB(1608size))

R962

3

1Y

4A

12

JQ : CEJQ

STBY

4

2A

4Y

11

AL : CEAL

R963 100

5

2B

3B

10

(others : CEAT)

R964 100

6

2Y

3A

9

7

GND

3Y

8

All Resistors are in k-k Ω, M-M Ω or Ω

1/8W : RS1/8S***J(3216size)

C951

L952

QTL1013

1/10W : RS1/10S***J(2125size)

CH

470p

F

(others : RS1/16S***J(1608size)

C952

0.1/16

A 3/5

18	SX-SW77

1

2

3

4

5

6

7

8

VS+3D

A 3/5 MAIN ASSY

DIGITAL

L4602

VTL1076

A

INPUTS

COAX IN

C4607

(WYXCN,WVXCN:AWK7883)

(KUXCN:AWK7884)

R4602

STBY

JA4601

IC4601 (2/3)

DVD/DVR1

C4601

47k

VKB1159

TC7WU04FU

R4607

(DIGITAL

(AD)

L4601

0.01

8

2

R4604

8

7

R4605

8

5

L4606

330

1

6

1

3

COAX IN)

2

C4602

QTL1013

C4608

4

R4603

C4609

0

4

0

4

VTL1076

C4611

220p

C4603

2.2k

22p

C4610

STBY

IC4601 (3/3)

CH 47p

R4601

220p

0.1/16

CH

75

CH

TC7WU04FU

A 1/5

IC4601 (1/3)

UCOM

TC7WU04FU

5-A4

OPT IN

(AD)

VS+5

VTL1076

JA4602

L4605

DVD/DVR2

GP1FAV51RKBF

UCOM

B

(DIGITAL

L4603

OPT IN 1)

1

2

3

VTL1076

(AD)

C4613

C4614

C4615

0.1/16

IC4602

VS+3D2

0.1/16

100/16

TC74VHC00FTS1

(AD)

1

14

R4609

220

C4612

STBY

R4610

100k

2

13

R4613

3

12

74

DIGSEL

OPT IN

4

11

0.01

1k

DIGSEL

H

1

5

10

L

2

JA4603

6

9

DIGITAL

GP1FAV51RKBF

7

8

C4626

(DIGITAL

L4604

OPT IN 2)

1

2

3

VTL1076

R4614

220

(AD)

0.1/16

C4622

R4615

220

(AD)

R4616

R4617

R4611

0

0

C4620 C4625

C4621

100/16

0.1/16

C4623

STBY

C4627 STBY

220

STBY

R4612

100k

C

GNDD

ERR

DO

C4628 100/16 C4629

0.01

DSP

DIR

DIR

C611

0.1/16

DIRT

67

DICS

DRCK

DIDI

100

MCLK

(AD)

(AD)

R612

C614

100

ADDATA

C613

1000p

(AD)

STBY

C612

R604

R608

R616

STBY

22

47

10k

AD

24

23

22

21

20

19

18

17

16

15

14

13

IN

IN

VS+5

IC901

DSP

DSP

BA30E00WHFP

AVSS

PDN

INT0

INT1

CSN

CCLK

CDTI

CDTO

UOUT

NC

MCKO

DAUX

COAX

OPT

100/16

0.1/16

470p

Vcc2

Vcc1

GND

Vo1

Vo2

ADJ

VS+3D

VS+1R2

D

CH

EN

IC601

1

2

3

4

5

6

7

C615

C616

C617

AK4117VF

AVDD

DVDD

DVSS

LRCK

BICK

SDTO

R901 R902

F%F%4.7k2.7k

1.25

R

RX1

NC

RX0

XTI

XTO

D901

STBY

C904 STBY

C901 0.1/16

1

3

4

5

6

8

9

10

11

L603

R617 12k

2

R618 22

R619

22

7 R610

22

R605

100

47 12

R606 100

C902 100/16

C903

100/16

QTL1013

R607

GNDD

3.30

(AD)

FDTI

BCK

DIR

L602 QTL1013 CH C606 470p

X601 STBY

LRCK

E

OSC

C607 0.1/16

C608

R609

STBY

STBY

C609

STBY

C610

KN901STBY

STBY

CHASSIS GND

(AD)

(AD)

GNDD

AUDIO

1-A6,4-B1

A 2/5, 4/5

(AD)

: AUDIO DATA SIGNAL ROUTE

F

GNDD

A 3/5

SX-SW77

19

7

5

6

8

1

2

3

4

3.5 MAIN ASSY (4/5)

A

DIGITAL AUDIO

PWM PROCESSOR

B

VS+3R3

A 2/5, 3/5

AUDIO

1-A6,3-D5

MCLK

A 1/5

UCOM

5-A4

UCOM

R3111

22

C

for control by PC

0

(SW)

R3112

C3120 10/16

ALC3119

1/16.

47

(C)

STBY

VS+5

.0

R3102 220

R3101

220

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

CN3171

C3105 01

C3103

1/16.0

C3102

010.

C3101

1/160.

1/16.0

1

PWM HPML

PWM P 6

PWM M 6

PWM P 5

PWM M 5

DVDD PWM

DVSS PWM

48

B5B-PH-K-S

C3104

VRA_PLL

VR_PWM

R3183

2 PLL_FLT_RET

47

SCL

1

PWM_P_4

SDA

R3184

3

PLL_FLTM

PWM_M_4

46

2

R3103

4

PLL_FLTP

PWM_P_3

45

VS+5

3

5

AVSS

RESERVED

MCLK

PWM HPPR

PWM HPMR

PWM HPPL

PWM P 8

PWM M 8

PWM P 7 PWM M 7

PWM_M_3

44

4.7

C3107

1/16.0

1/16.0

C3106

R3185

C3108

10/16

STBY C3121

STBY C3122

6

AVSS

PWM_P_2

43

RST

4

R3113

7

VRD_PLL

PWM_M_2

42

GNDD

5

3.3

8

AVSS_PLL

PWM_P_1

41

AL

C3109

9

IC3101

40

1000p

AVDD_PLL

PWM_M_1

10

VBGAP

TAS5508APAG

VALID

39

GNDA

OSC CAP

11

/RESET

VR DPLL

DVSS

38

SIND2

SDIN1

D

71

12

/HP_SEL

NC

/BKND_ERR

37

XDAPDN

13

/PDN

DVDD

36

35

14

/MUTE

RESERVED

RESERVED

RESERVED

DVSS

35

DSPMUTE

STBY

XTL OUT

VS+3R3

R3104

15

DVDD

DVSS

34

XTL IN

LCRCK

0

220

16

SDA

SCL

SCLK

SDIN4

SDIN3

33

RAB4C221J

DVSS

VR_DIG

R3105

1

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

IC3181

R3182

R3151

7k.4

RAB4C472J

1/16.0

1/16.0

SN74AHC1G04DBV

1/16.0

R3152 10k

C3111

10/16

C3110

C3112

3

2

C3181

RAB4C470J

4

AL

47 R3108

5

1

RAB4C470J 47

R3153

0

70

X3101

IC3182

0

XDARST

ASS7062 R3107

T-TPS3825-33DBVR

C3182

1/16.

BCK (AD)

SDTO (AD) FDTO (AD)

3

2

CH C3113

R3106

CH

4

R3181

1M

C3114

LRCK

CDTO

4.7k

15p

5

1

15p

E

GNDD

R3154

R3155

0

0

RESET CONTROL CIRCUIT

27

28

DASDA

DASCK

F

A 4/5

20	SX-SW77

1

2

3

4

5

6

7

8

NOTES

A

A 4/5 MAIN ASSY

All Capacitors are in p-pF or uF

unless otherwise specified

Ratings : Capacity(uF)/Voltage(V) Rated Voltage : 50V unless

otherwise specified

(WYXCN,WVXCN:AWK7883)

(KUXCN:AWK7884)

SQ : CKSQ**(2125size)

CH : CCSRCH(1608size)

(others : CKSRYB(1608size))

JQ : CEJQ

AL : CEAL

(others : CEAT)

All Resistors are in k-k Ω, M-M Ω or Ω

1/8W : RS1/8S***J(3216size)

1/10W : RS1/10S***J(2125size)

(others : RS1/16S***J(1608size)

B

POWER KONFIG

A 5/5

DETECT

PWM

2-A1

SHUTDOWN

PCONFIG

PWM

V+B27

V+B

77

21

R3191

STBY

R3194

ACN7112

R3198

01.0

R3196

8

C3193

1000P

- 6

0.1

100k

0.1

PWM_P_8

IC3191

R3199

PWM_M_8

R3192

C

BA10358F

ACN7112

PWM_P_7

5.6k

PWM_M_7

2.2k

7

R3193

C3194

UDZS4R7(B)

C3118

1/16.0

D3191

R3197

10k

C3191

10/50

C3192

4

+ 5

100k

5.6k

R3200

1 . 0

R3195

3.3 1/10W

(SR)

PWM_P_4

PWM_M_4

IC3191

PWM_P_3

(SL)

BA10358F

PWM_M_3

8

- 2

PWM_P_2

(FR)

PWM_M_2

1

+ 3

Power Supply

PWM_P_1

4

(FL)

PWM_M_1

VALID

VG+12

CN2

CN3201

R3110

IC3161

NJM78M12DL1A

R3161

B2P-VH

D

0

OUT

IN

2

+B

E

VS+3R34

3

2 1

2W

82

1/16.0 C3115

C3116

1/16.0

C3117

10/16

C3163

10/50

C3162

1/160.

C3161

10/50

1

GND

R3109

1

AL

STBY

GNDD

GNDD

AUDIO

E

		(FL)	: AUDIO SIGNAL ROUTE (PWM)(Front Lch)
		(FR)	: AUDIO SIGNAL ROUTE (PWM)(Front Rch)
		(SL)	: AUDIO SIGNAL ROUTE(PWM)(Surround Lch)
		(SR)	: AUDIO SIGNAL ROUTE(PWM)(Surround Rch)
		(C)	: AUDIO SIGNAL ROUTE(PWM)(Center ch)
		(SW)	: AUDIO SIGNAL ROUTE(PWM)(Sub Woofer ch)
		(AD)	: AUDIO DATA SIGNAL ROUTE
								F
								4/5
							A
						21
		SX	-SW77		7
5	6					8

1

2

3

4

3.6 MAIN ASSY (5/5)

4/5

PWM 4-B6

V+B27

A

STBY

A

R3222

R3224

820

1/10W

R3226

820

C3246

C3222

1000/35

C3224

01.0

C3226

IC3201

STBY

01.0

R3228

VG+12

C3236

R3238

TAS5112ADCA

*L

1

1

GND

56

R3230

R3208R3207

4 47k

R3206

C3202

1/16

SQ

2

GND

55

*L 1/10W

SQ 1/10W 33.

1000p

STBY

47/1000.

10.

R3234

1/10W7k.4

C3238 C3240

01.0 01.0

C3250

STBY

STBY

GND

GVDD

3

GREG

BST_A

54

R3218

1.5

TL

4

53

1/8W

1.0

C3230

STBY

DVDD

PVDD_A

C3214

R3214

5

52

GND

PVDD_A

SQ

6

DGND

OUT_A

51

0.1

ACN7141

7

50

2.7

L3202

PWM_M_3

7k.

C3204

1/160.

(SL)

GND

OUT_A

C3241

R3240

1/8WC3218

0330.

C3228

(SL)

2

C3232

C3234

1.0

R3232

7k1/10W.4

R3236

STBY

8

AP

GND

49

330p

CH

18

410uH 3

1

C3248

PWM_P_3

9

AM

GND

48

C3242

1/8W

CH R324118

10

/RESET_AB

OUT_B

47

330p

R3210

100

D3211 D3212 1SMA33CAT3G1SMA33CAT3G

1SMA33CAT3G1SMA33CAT3G

1

2

(SL)

1

11

BM

OUT_B

46

C3212

R3212

SQ SQ

D3213 D3214

033.0

ATH7021

B

12

BP

PVDD_B

45

2.7

C3217 C3216

0.1

SQ

13

DREG

PVDD_B

44

ACN7141

1/16.0 C3203

R3205

R3209

STBY

14

M1

BST_B

43

R3216

1.5

1/8W

10k

15

M2

BST_C

42

R3217

1.5

1/8W

16

41

M3

PVDD_C

C3213

R3213

033.0

17

40

DREG_RTN

PVDD_C

PWM_M_1

(FL)

ACN7141

L3201

18

39

0.1

CP

OUT_C

10uH

PWM_P_1

19

38

SQ

2.7

4

3

CM

OUT_C

C3243

R3242

C3249

STBY

VALID

R3204

220

20

/RESET_CD

GND

37

1/10W 7k.4 1/10W

R3237

330p

CH

18

C3235

1

21

36

1

2

1.0

1

DM

GND

C3244

1/8W

1/8W

22

DP

OUT_D

35

330p

CH R324318

SQ

2

(FL) ATH7021

47/100.0

R3233

77

SHUTDOWN

R3203

1k

23

/SD_AB

OUT_D

34

C3211

R3211

C3215

033.0

C3237 C3239

01.0 01.0

R3202

1k

24

/SD_CD

PVDD_D

33

C3227

C3229

STBY

VG+12

79

XOTW

SQ ACN7141

1.0

TL

R3201

1k

25

/OTW

PVDD_D

32

0.1

26

31

2.7

GREG

BST_D

R3215

1.5

1/8W

27

30

GND

GVDD

28

GND

GND

29

1/16 C3201

SQ

R3229

C3231

C3233

1.0

R3231

C3247

R3227

1/10W

STBY

7k.4

R3235

C

R3221

*L

V+B27

*L

C3245

C3221

1000/35

01.0 33.

C3225

1000p

1

STBY

STBY

R3223

820

1/10W

R3225

820 1/10W

01.0

C3223

(FL)

GNDD

STBY

V+B27

STBY

R3308 R3307

7k.4 47k

R3322

R3324

820

1/10W

R3326

820

1/10W

C3346

C3322

1000/35

C3324

01.0

C3326

1000p C3328

SQ

IC3301

STBY

01.0

R3328

3.3

VG+12

C3336

4 1/10W 7k.4 1/10W

R3338

TAS5112ADCA

*L

1

1

GND

56

R3330

R3306

C3302

1/16

2

GND

55

*L

1/10W C3318

STBY

47/1000.

10.

R3334

C3338 C3340

01.0 01.0

C3350

STBY

GND

GVDD

STBY

3

GREG

BST_A

54

R3318

1.5

STBY

TL

4

53

1/8W

0 SQ

1.0

C3330

D

DVDD

PVDD_A

C3314

R3314

5

52

GND

PVDD_A

SQACN7141

1/160.

6

DGND

OUT_A

51

0.1

7

50

2.7

2

L3302

(SR)

GND

OUT_A

C3341

R3340

PWM_M_4

8

AP

GND

49

330p

CH

18

033.0 033.0 033.

(SR)

410uH 3

7k.

PWM_P_4

9

AM

GND

48

C3342

1/8W

CH R334118

R3310

10

/RESET_AB

OUT_B

47

330p

1/8W

1

2

1

11

BM

OUT_B

46

C3312

R3312

(SR)

ATH7021

12

BP

PVDD_B

45

2.7

C3316

SQ

13

44

0.1

DREG

PVDD_B

ACN7141

R3305

14

M1

BST_B

43

R3316

1.5

1/8W

10k

15

M2

BST_C

42

R3317

1.5

1/8W

16

41

M3

PVDD_C

C3313

R3313

17

DREG_RTN

PVDD_C

40

PWM_M_2

(FR)

SQACN7141

L3301

18

CP

OUT_C

39

0.1

PWM_P_2

1/160. C3303

C3304

R3309

100

STBY

2.7

C3317

SQSQ

D3313D3314

D3311D3312 1SMA33CAT3G1SMA33CAT3G

1SMA33CAT3G1SMA33CAT3G

4

10uH

3

C3332

C3334

10.

R3332

R3336

1

C3348

STBY

19

38

CM

OUT_C

C3343

R3342

VALID

R3304

220

20

/RESET_CD

GND

37

1/10W 7k.4 1/10W

R3337

330p

CH

18

C3335

1

21

36

1

2

1.0

1

DM

GND

C3344

1/8W

1/8W

E

22

DP

OUT_D

35

330p

CH R334318

033.0 SQ

2

(FR) ATH7021

47/100.0

R3333

C3349

STBY

77

SHUTDOWN

R3303

1k

23

/SD_AB

OUT_D

34

C3311

R3311

C3315

C3337 C3339

01.0 01.0

R3302

1k

24

/SD_CD

PVDD_D

33

C3327

C3329

STBY

VG+12

TL

79

XOTW

SQ

2.7

1.0

R3301

1k

25

/OTW

PVDD_D

32

0.1

26

31

ACN7141

GREG

BST_D

R3315

1.5

1/8W

27

30

GND

GVDD

28

GND

GND

29

C3301

1/16

SQ

R3329

C3331

C3333

1.0

R3331

C3347

STBY

R3327

1/10W 3.3

STBY

7k.4

R3335

R3321

*L

*L

C3345

C3321 01.0

1000/35

C3325

1000p

V+B27

1

STBY

R3323

820

1/10W

R3325

820

1/10W

C3323

01.0

(FR)

GNDD

STBY

PWM

UCOM

F

			LAYOUT NOTE :
	A	5/5
			*L are PCB track inductors approx. 50mm long and 1mm wide
22
				SX-SW77

1

2

3

4