Pioneer AVXP-7650-TV Service manual

ORDER NO.

CRT3236

AVX-P7650TV/ES

7.0 INCH WIDE AV SYSTEM DISPLAY

AVX-P7650TV/ES

For details, refer to "Important symbols for good services".

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 2004

K-ZZU.JULY 2004 printed in Japan

1

2

3

4

SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.

A 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.

	Battery	Note :
	Slide the tray out on the back of the	• Use a CR2025 (3V) lithium battery
		only. Never use other types of battery
	remote controller and insert the battery
		with this unit.
	with the (+) and (–) poles pointing in
	the proper direction.

B

CAUTION

Danger of explosion if battery is incorrectly replaced.

Replaced only with the same or equivalent type.

- Service Precaution

1. You should conform to the regulations governing the product

C(safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

NOTE:

- Inverter for LCD back light becomes a high voltage.

D

E

F

2		AVX-P7650TV/ES
1	2		3	4

5

6

7

8

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying

glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.

A

B

C

D

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			AVX-P7650TV/ES					3
	5	6				7	8

	1	2	3	4
	CONTENTS
	SAFETY INFORMATION.....................................................................................................................................			2
	1. SPECIFICATIONS ............................................................................................................................................			5
A	2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................			6
	2.1 PACKING			6
	2.2 EXTERIOR(1) ............................................................................................................................................			8
	2.3 EXTERIOR(2) ..........................................................................................................................................			10
	2.4 EXTERIOR(3) ..........................................................................................................................................			12
	3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM		..........................................................................................	14
	3.1 BLOCK DIAGRAM ...................................................................................................................................			14
	3.2 OVERALL CONNECTION DIAGRAM......................................................................................................			16
	3.3 MOTHER UNIT(MAIN)(GUIDE PAGE).....................................................................................................			18
	3.4 MOTHER UNIT(TV TUNER) ....................................................................................................................			24
	3.5 KEYBOARD UNIT....................................................................................................................................			26
	3.6 MONITOR UNIT(GUIDE PAGE)...............................................................................................................			28
B	3.7 INVERTER PCB.......................................................................................................................................			34
	3.8 MAIN UNIT, SW UNIT AND VOLUME UNIT ............................................................................................			36
	4. PCB CONNECTION DIAGRAM .....................................................................................................................			38
	4.1 MOTHER UNIT ........................................................................................................................................			38
	4.2 KEYBOARD UNIT....................................................................................................................................			42
	4.3 MONITOR PCB........................................................................................................................................			44
	4.4 INVERTER PCB.......................................................................................................................................			48
	4.5 UPPER PCB ............................................................................................................................................			49
	4.6 MAIN UNIT...............................................................................................................................................			50
	4.7 SW UNIT AND VOLUME UNIT ................................................................................................................			52
	5. ELECTRICAL PARTS LIST ............................................................................................................................			53
C	6. ADJUSTMENT ...............................................................................................................................................			67
	6.1 JIG CONNECTION DIAGRAM.................................................................................................................			67
	6.2 MOTHER PCB ADJUSTMENT ................................................................................................................			68
	6.3 MONITOR PCB ADJUSTMENT...............................................................................................................			71
	6.4 INVERTER PCB ADJUSTMENT .............................................................................................................			75
	6.5 MONITOR TEST MODE ..........................................................................................................................			76
	6.6 FREQUENCY CHECK FOR CLOCK .......................................................................................................			81
	7. GENERAL INFORMATION.............................................................................................................................			82
	7.1 DIAGNOSIS .............................................................................................................................................			82
	7.1.1 DISASSEMBLY .....................................................................................................................................			82
	7.1.2 CONNECTOR FUNCTION DESCRIPTION..........................................................................................			87
	7.2 IC .............................................................................................................................................................			88
D	7.3 SYSTEM BLOCK DIAGRAM ...................................................................................................................			97
	7.3.1 MECHANISM DESCRIPTIONS			97
	7.3.2 OPERATIONAL FLOW CHART ..........................................................................................................			103
	8. OPERATIONS ..............................................................................................................................................			104

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1	2		3	4

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8

1. SPECIFICATIONS

A

B

C

D

E

F

			AVX-P7650TV/ES					5
	5	6				7	8

1 2 3 4

2. EXPLODED VIEWS AND PARTS LIST

NOTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.

	A	• Screw adjacent to"mark on the product are used for disassembly.
		• For the applying amount of lobricants or glue, follow the instructions in this manual.
		(In the case of no amount instructions,apply as you think it appropriate.)
		2.1 PACKING

B

C

D

E

F

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1	2		3	4

		5		6			7		8
PACKING SECTION PARTS LIST
Mark No.		Description		Part No.	Mark No.		Description		Part No.
	1	Screw Assy		CEA3686
	2	Screw		BMZ50P060FTC		16	Contain Box		CHL5256
	3	Screw		CBA1468		17	Protector		CHP2387
	4	Screw		CMZ50P060FTC		18	Protector		CHP2706
*	5	Polyethylene Sheet		CNM4338		19	Protector		CHP2707
						20	Protector		CHP2708
	6	Accessory Assy		CEA3743
	7	Screw		CBA1650		21	Sheet		CNM8603
	8	Bush		CNV1917	*	22	Lock Tie		CNV-754
*	9	Polyethylene Bag		E36-615		23	Cord Assy		CDE7556
*	10	Polyethylene Bag		CEG-158		24	Cord Assy		CDE7321
						25	Cord Assy		CDE7560
	11	Polyethylene Bag		CEG1088
*	12	Battery		CEX1065		26-1	Polyethylene Bag		CEG1116
	13	Remote Control Assy		CXC3050		26-2	Owner's Manual		CRD3886
	14	Carton		CHG5256		26-3	Installation Manual		CRD3887
	15	Sub Carton		CHG5270
Owner's Manual,Installation Manual
	Part No.			Language
CRD3886			English,Korean
CRD3887			English,Korean

A

B

C

D

E

F

			AVX-P7650TV/ES					7
	5	6				7	8

1

2

3

4

2.2 EXTERIOR(1)

A

B

C

D

	42
E	52
	52
	52

51

51

51

F

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1	2		3	4

	5	6		7	8
EXTERIOR(1) SECTION PARTS LIST
Mark No.	Description	Part No.	Mark No.	Description	Part No.
1	Screw	BMZ20P030FZK	50	Screw	ISS26P055FTC
2	Screw	BMZ26P030FTC	51	Cushion	CNM9470(x3)	A
			52	Cushion	CNM9471(x4)
3	Screw(M2x2)	CBA1753
4	Cord Assy	CDE7554
5	Screw	CMZ50P060FTC
6	Panel	CNB2995
7	Case	CNB2997
8	Holder	CNC9510
9	Bracket	CND1482
10	Bracket	CND2148
11	Holder	CND2227				B
12	Insulator	CNM8821
13	Sheet	CNM9361
14	Panel	CNS7481
15	Mother Unit	CWM9399

16	Screw	BSZ26P080FTC
17	Terminal(CN2201,2601,2602)	CKF1064
18	Connector(CN201)	CKM1389
19	Plug(CN501)	CKM1433
20	Jack(CN2150-2153)	CKN1032
21	Front End(FE2201)	CWB1096
22	IC(IC921,941)	BA00AST
23	Transistor(Q902,912)	2SD2375
24	Connector(CN101)	CKS3410
25	Connector(CN1301)	CKS3751
26	Connector(CN1302)	CKS4068
27	Connector(CN1101)	CKS4426
28	Connector(CN102)	CKS4831
29	Shield	CNC9885
30	Shield	CNC9886
31	Holder	CND2228
32	Holder	CND2410
33	Holder	CND2581
34	Insulator	CNM7680
35	Screw	BPZ20P080FTC
36	Button(RESET)	CAC8665
37	Button(VOL)	CAC8940
38	Button(ANGLE,CHA)	CAC8941
39	Cable	CDE7786
40	Holder	CND2223
41	Spacer	CNM9362
42	Speaker	CPV1065
43	Keyboard Unit	CWM9403
44	Connector(CN1501)	CKS4600
45	Connector(CN1502)	CKS4822
46	Tape	CNM8808
47	IC(IC1501)	TSOP4840SB1
48	Button Unit(AV-SRC)	CXC3051
49	Service Grille	CXX1812

			AVX-P7650TV/ES					9
	5	6				7	8

C

D

E

F

1

2

3

4

2.3 EXTERIOR(2)

A

B

C

D

E

F

10		AVX-P7650TV/ES
1	2		3	4

	5	6
EXTERIOR(2) SECTION PARTS LIST
Mark No.	Description	Part No.
101	Screw(M2x3)	CBA1082
102	Screw(M2x2.5)	CBA1250
103	Screw(M2x4)	CBA1277
104	Screw(M2x1.5)	CBA1615
105	Washer	CBF1038
106	Spring	CBH2645
107	Spring	CBH2646
108	Spring	CBH2647
109	Spring	CBL1585
110	Spring	CBL1586
111	Spring	CBL1587
112	Cord Assy	CDE7047
113	Cord Assy	CDE7213
114	Shaft	CLA4270
115	Shaft	CLA4305
116	Shaft	CLA4306
117	Shaft	CLA4309
118	Bracket	CND1221
119	Heat Sink	CND1228
120	Case	CND1229
121	Holder	CND1318
122	Holder	CND1449
123	Sheet	CNM8522
124	Sheet	CNM8037
125	Insulator	CNM8048
126	Insulator	CNM8158
127	Sheet	CNM8159
128	Tape	CNM8160
129	Insulator	CNM8294
130	Gear	CNR1664
131	Gear	CNR1665
132	Gear	CNR1677
133	Gear	CNR1678
134	Gear	CNR1679
135	Gear	CNR1680
136	Gear	CNR1688
137	Gear	CNV7524
138	Gear	CNR1708
139	Gear	CNV7383
140	Holder	CNV7384
141	Holder	CNV7385
142	Rack	CNV7386
143	Rack	CNV7387
144	Slider	CNV7388
145	Slider	CNV7389
146	Holder	CNV7390
147	Arm	CNV7391
148	Gear	CNV7522
149	Gear	CNV7523
	5	6

		7	8
	Mark No.	Description	Part No.
	150	Gear	CNR1709
	151	Gear	CNV7529	A
	152	Chassis Unit	CXB9509
	153	Frame Unit	CXB9511
	154	Holder Unit	CXB9512
	155	Shaft Unit	CXB9513
	156	Holder Unit	CXB9514
	157	Motor Unit(M3001)(Position)	CXB9515
	158	Motor Unit(M3002)(Angle)	CXB9516
	159	Screw	CZB3082
	160	Screw	CZB3083	B
	161	Washer	CZB3084
	162	Main Unit	CZW3087
	163	SW Unit	CZW3088
	164	Volume Unit	CZW3089
	165	Screw	IMS20P020FTC
	166	Screw	IMS20P030FZK
	167	Washer	YE15S
	168	Screw	BMZ26P050FTC
	169	Connector(CN3801)	CKS4068	C
	170	Connector(CN3802,CN3803)	CKS3124
	171	Connector(CN3807,3809)	CKS3125
	172	•••••
	173	IC(IC3801)	BA00AST
	174	Volume(VR3841)	CCW1025
	175	Flexible PCB	CNP8119
	176	Screw(M2x2)	CBA1615
	177	Screw(M2x2)	CBA1753	D
	178	Holder	CND2243
	179	Holder	CNV7446
	180	Cover Unit	CXC2968
	181	Screw(M2x2)	CBA1615
	182	Screw(M2x1.8)	CZB3085
	183	Spring	CBL1642
	184	Screw(M2x4)	CZB3088
	185	Drive Unit	CXB9508
	186	Washer	CZB3089	E

F

	AVX-P7650TV/ES					11
				7	8

1

2

3

4

2.4 EXTERIOR(3)

A

B

C

D

E

F

12		AVX-P7650TV/ES
1	2		3	4

	5	6	7	8
EXTERIOR(3) SECTION PARTS LIST
Mark No.	Description	Part No.
201	Cord Assy	CDE7321
202	Cap	CNS1472
203	Resistor	RS1/2PMF102J
204	Cord Assy	CDE7556
205	Cap	CNV6727
206	Fuse(3A)	CEK1134
207	Cord Assy	CDE7560
208	Remote Control Assy	CXC3050
209	Cover	CZN5373
210	Spacer	CNM8935
211	Screw	BPZ20P060FTC
212	Button(ENT,WIDE,V.ADJ)	CAC8569
213	FFC	CDE7195
214	Spacer	CNM8975
215	Screw(M2x2)	CBA1753
216	FFC	CDE7196
217	Holder	CND2170
218	Sheet	CNM8595
219	Sheet	CNM8666
220	Sheet	CNM8667
221	Insulator	CNM8930
222	Monitor Unit	CWM9401
223	Grille Unit	CXC3771
224	Connector(CN4801)	CKS3991
225	Connector(CN4201)	CKS4054
226	Connector(CN4301)	CKS4054
227	Connector(CN5002)	CKS4428
228	Connector(CN4451)	CKS4595
229	Connector(CN5001)	CKS4595
230	Connector(CN4461)	CKS3968
231	Holder	CND1677
232	Insulator	CNM9251
233	LCD Module	CWX3068

A

B

C

D

E

F

			AVX-P7650TV/ES					13
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1

2

3

4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A			A MOTHER PCB																											C MONITO
																														CN1301	CN4461
																												SWVDD5	18	14
																									SWVDD5
		CN201																			40				4	IC387		2,3	35	29	CVBS
						3	IC201			6	1
			1																						TK15405BMI
							NJM2136V								IC271
B
		VTR IN	7			3	IC211			6	8			CXA2089Q
							NJM2136V
			4			13	IC251			1	2
							TA2050F
			10			13	IC241			1	9
							TA2050F
													46			22	39	47										FU961	1	1
																											BU		2	2
																															PWRFL
		CN501																											3	3
	POWER SUPPLY
		CORD		9	1	IC501		3
						NJM4558V
																															2	IC406
							13		IC121		1																					TC7SZ0
		CN101	7
									TA2050F																					22
		IP-BUS IN	1
																													5	4	REMCON
		CN102	7				1,2		IC131		3
								NJM4558MD
C
		IP-BUS OUT	1
																										TXMON	107		20	16	KYDT
																										RXMON	108		19	15	DPDT
		SP																		1	IC862
	CN1502																				M62343FP		DACCK,
																							DACDO,
		1																					DACCS
			CN1101						4													18.874MHz		73
								IC861				IC873
		9,11		5,7			8			2	1			3											SYSTEM
							TDA7052BT					NJM4558MD												74
D																									CONTROLLER
	RESET
		4	12	RESET
																									IC601
		KEY0-2														7									PE5457A
																IC1230
		2			BEEP						EPRSK,EPRCS,			NJM2235V											68
KEY										EPRPRO,EPRIDO,						3
	ILMG,DSENSOUT											EPRDI
MATRIX			11 REMCOM
		5
																														CN1302
ILLUMINATION		CN1501																									137			ANGLEIN
																										ANGLE			20
	IC1501																								LIFTPUL		21		19	LIFTPUL
																		2		IC631		1		40	MTRSEL		14		18	MTRS
	TSOP4840SB1																								reset		13			MTRPW
																			S-80841CNUA-B82							MTRPW			17		POSITION
																	VDD5									MTR2	17		16	MTR2		M
																		2		IC751		1				MTR1	16		15	MTR1	MOTOR
																											20		13	angl)sw
B																	VDD5		S-80841CNUA-B82							deg)sw	19			pushsw
																									pushsw				12
																										SNSPW	18		11	SNSPW
KEYBOARD UNIT							13-16											6		1		IC101	2	90	ierx					VDD	ANGLE
										IC2101			IC2401				IC781										VDD		10			M
		ANT					9-12					24				15					HA12240FP										MOTOR
						7			CM0035AM			14	TA1290FN			HA12240FP								91	ietx				1
		CN2150-2153															1	2										FU1301		VBU
E													8,9														BU		2
					IC1140																				31 32
													6																3
					NJM4558V			1									66	67												H VOLUME UNI
										FE2201			SCE,SDTDA,
						5														60
								1					SCKSCL
																	IC701			79	1	IC921		4		IC941						CN3843
						8		45		IC2301						PE5451A					BA00AST			TVPW	1			4
					IC2501		11	8																		BA00AST				VR3841		CN3842
																												VIDEO9
					LA2120M					LA1145M			TVSDST,TVSL																			CN3841
																														G SW UNIT
																														S3832		CN3833
																														LIFTSW		CN3831
																														S3831
																														ANGLE0SW		CN3832
F
14												AVX-P7650TV/ES
	1									2												3								4

5

6

7

8

C MONITOR PCB

A

CN4461

Q4153

RGB AMP

ROUT

34

7

14

Q4152

GOUT

36

1

IC 4151

4

8.0V

NJM2138V

Q4151

BOUT

38

14

LCD MODULE

2-SCREEN

29

CVBS

CONTROL IC

CN4801

IC4001

Q4156

VR 28

TC90A64AF-P

8.0V

B

X0

82

X4001

Q4155

LCD

Q4101

Q4103

Q4102

X1

83

42MHz

VG 27

65

CVI1

1

Q4154

VB

2

5->3V CHANGE

26

3

PWRFL

1

IC4065

4

93

FNAVI

TC7SZ08FU

2

IC4061

4

2

IC4063

4 2

IC4064

4

92

BLNK

TC7SZ02FU

TC7SZ32FU

TC7SZ08FU

OSDCLK

22

NDSH

POLC

Q4182

VCOM

LCD

1

102

17

101

28

VCOM AMP

BACK LIGHT

REMCON

4

6

IC4181

1

LCD MICROCOMPUTER

NJM082BV

Q4183

IC 4701

PD6340A

C

17

EEP-ROM

IC4691

S-93C46BR0I-J8T1

16

KYDT

4

IC4604

2

Q4831

E UPPER PCB

TC7SET08FU

14.4V

2

IC 4851

3

KST1,2,KDT1,2,3,4

CN4201

CN4301

B.UP

3.3V

IC4601

3.3V

4

IC 4861

12

18V

LT1376CS8

VSW5

15

DPDT

2

IC4605

4

3

9

TC7SH08FU

Q4832

IC 4841

OUT OF LIGHT SENSOR

36

35 21 19

94 82

3.3V

2

1

2.5V

R1130H251B

2

4

17

Q4835

LSEN

7

IC 4311

8

IC4092

15

10

2

NJM062V

1

TC7SH08FU

8.0V

5V

8V

4

IC4093

1,2

PD5944A

MAX1748EUE 10

-12V

TC7SH08FU

62

POWER SUPPLY

KST1,2,KDT1,2

KEY

12

24

26

MATRIX

1

IC 4602

D

S-80827CNNB-B8M

7

1

KST1,2,KDT3,4

IC 4451

14

PWRFL

15

TC7SET08FU

16

DIMDTY

4

8

VILLA,VILLGB

D INVERTER PCB

CN4451

1

2

CN5002

CN5001

FL1

FL2

1,2

IC 5002

F MAIN UNIT

10

EIN

TC7SET08FU

KEY

UL

4

RS

MATRIX

INVERTER FOR

PW

CN3802

Motor driver

CN3801

IC5005

R2

POSITION

MO1

1

5

MTR1

18

BACK LIGHT

SI6544DQ

T5001

R1

M

1

6

1 PWRFL

3

IC5001

1

5,14,15

20

MOTOR

2

MOB

18

6

MTR2

5

IC 5003

sw

IC 3802

Regulator for driver

2

TA78L05F

sw

OZ961IS

3

11

PW

BA6247FP

16

4

IC 3801

1

MTRPW

7

CN3803

4

BA00AST

10

IC5004

DD

ANGLE

MO2

22

M

2

Q5003

SI6544DQ

MOTOR

1

MOB

Q3801

14

MTRS

3

DIMDTY

BU

9

E

H VOLUME UNIT

Q3804

VDD 11

CN3809

CN3843

1

IC 3803

3

Q3802

VBU

18

ANGLV

1

TA78L05F

19

CN3842

20

ANGLIN0

VR3841

2

SNSPW 10

CN3841

ANGLG

3

Q3803

G SW UNIT

1

IC 3805

3

2

IC 3804

4 LIFTPUL

2

GP2L24B

TC7S14FU

CN3807

S3832

CN3833

ANGLEIN

1

LIFT

pushsw

1

9

LIFTSW

S3831

CN3831

3

ANGLE0

angl)sw

8

ANGLE0SW

CN3832

GNDSNS

2

F

5

6

AVX-P7650TV/ES

7

8

15

1

2

3

4

3.2 OVERALL CONNECTION DIAGRAM

A
B	OUTPUT
	POWER SUPPLY•RCA
				A MOTHER UNIT
C
			RCA
			INPUT
D				C MONITOR PCB
E		D INVERTER PCB		LCD MODULE
F
	16		AVX-P7650TV/ES
		2	3	4
	1

	5	6	7	8
					A
					B
	R UNIT			B
				KEYBOARD
				UNIT
					C
			F MAIN UNIT
			G SW UNIT
			H VOLUME UNIT
				E
				UPPER PCB
	CB				D
					E
					F
			AVX-P7650TV/ES		17
	5	6	7	8

1

2

3

4

3.3 MOTHER UNIT(MAIN)(GUIDE PAGE)

Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".

A				A-a
		Large size
A-a	A-b	SCH diagram
				F CN3801
A-a	A-b	Guide page	Slave	RCA INPUT
			Master	>
A-a	A-b	Detailed page

B

C

D

E

>

>

>

>

>

F

A

18		AVX-P7650TV/ES
1	2		3	4

5

6

7

8

A-b

F	CN3801	C	CN4461

A 1/2 MOTHER UNIT (MAIN)

A 2/2

CN1501 B

Monitor speaker sound output

Monitor speaker input isolation

NOTE :
						Symbol indicates a resistor.		Decimal points for resistor
						No differentiation is made	between chip resistors and
								and capacitor fixed values
						discrete resistors.
								are expressed as :
						Symbol indicates a capacitor.		2.2 ←	2R2
						No differentiation is made	between chip capacitors and	0.022	←R022

discrete capacitors.

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.

A

B

C

D

E

F

A

			AVX-P7650TV/ES					19
	5	6				7	8

1

A

A-b 1/2

F CN3801

>

B

C

a-A b-A

D INPUT

RCA

Slave

Master

E

F

A-a 1/2

20

1

2		3	4

1

2

3

AVX-P7650TV/ES

2

3

4

5

6

7

8

A

A-b 1/2

B

>

>

>

C

A-a A-b

D

E

				>
				>	F
					A-a 1/2
			AVX-P7650TV/ES		21
	5	6	7	8

A

B

C

A-a A-b

D

E	CN4461
	C

1

2

3

4

(MAIN)	A 2/2
MOTHER UNIT
A 1/2

F

	A-b 1/2	1	2	3
	22		AVX-P7650TV/ES
		2	3	4
	1

5

6

P7650TV/ES-AVX

7

8

23

1/2 b-A

Monitor speaker sound output

Monitor speaker input isolation

NOTE :

Symbol indicates a resistor.

No differentiation is made between chip resistors and discrete resistors.

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and discrete capacitors.

Decimal points for resistor and capacitor fixed values are expressed as :

2.2	←	2R2
0.022		←	R022

						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
			A-a	A-b		identical designation.
F	E	D			C	B

5

CN1501 B

6

7

8

A

1

2

3

4

3.4 MOTHER UNIT(TV TUNER)

A

B

C

D

E

F

A 2/2

24		AVX-P7650TV/ES
1	2		3	4

5

6

7

8

A 2/2 MOTHER UNIT (TV TUNER)

A 1/2

A 2/2

			AVX-P7650TV/ES					25
	5	6				7	8

A

B

C

D

E

F

1

2

3

4

3.5 KEYBOARD UNIT

A

B

C

A

1/2

CN1101

D

E

F

B

26		AVX-P7650TV/ES
1	2		3	4

5

6

7

8

B KEYBOARD UNIT

AV-SRC

B

			AVX-P7650TV/ES					27
	5	6				7	8

A

B

C

D

E

F

1

2

3

4

3.6 MONITOR UNIT(GUIDE PAGE)

Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".

A								C-a
							Large size
							SCH diagram
		A-a			A-b

A-a	A-b	Guide page
A-a	A-b	Detailed page

B

CHECKER CHIP

RESE

R4636

4R7K

C

D

CN5001

D

A1/2

CN1301

470

E

V

OPTICAL SENSE

F	E UPPER PCB

C E

28		AVX-P7650TV/ES
1	2		3	4

5

6

7

C-b

V

>

RESET

V

V

V

470

MONITOR UNIT	V	VIDEO SIGNAL LINE
Consists of
MONITOR PCB		: The power supply is shown with the marked box.
INVERTER PCB
UPPER PCB

AVX-P7650TV/ES

5

6

7

8

A

C MONITOR PCB

B

C

	LCD	D
	MODULE

E

F

C

29

8

A

1	2	3		4
	RESET
C-b	1	2	3	4

CHECKERCHIP

B

R4636

4R7K

C

CA-a C-b

D

E

F

C-a

D CN5001

30		AVX-P7650TV/ES
1	2		3	4