Philips 46PFL3705D/F7 User manual

Service Manual

Contents

46” 46PFL3705D/F7 (Serial No. : YA1A)

46” 46PFL3705D/F7 (Serial No. : YA2A)

46” 46PFL3505D/F7 (Serial No. : YA1A)

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herein without the obligation to notify any person or organization of such changes.

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otherwise, any license or right to use any of the trademarks displayed herein. Misuse of any trademarks or any

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to the fullest extent of the law.

LCD TV

chassis PL10.6

110808

9-6 PL10.6BLP1

Power Supply 1 Block Diagram

CAUTION !

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.

If Main Fuse (F1601) is blown , check to see that all components in the power supply

circuit are not defective before you connect the AC plug to the AC power supply.

Otherwise it may cause some components in the power supply circuit to fail.

For continued protection against risk of fire,

replace only with same type 8A, 250V fuse.

CAUTION ! :

ATTENTION : Utiliser un fusible de rechange de même type de 8A, 250V.

8A 250V

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

LCD MODULE

ASSEMBLY

HOT COLD

HOT CIRCUIT. BE CAREFUL.

CN1601

AC601

AC CORD AC

INLET LINE

FILTER

L1601

LINE

FILTER

L1602

T1201

BRIDGE

RECTIFIER

D1201-D1204

BRIDGE

RECTIFIER

L1604

DRAIN

VCC

VDD

TO SYSTEM CONTROL

BLOCK DIAGRAM

POWER SUPPLY CBA

AL+4.3V

+345V

HOT+20V

F1601

8A/250V 5

T1701

IC1202

3 2

IC1201

(SWITCHING)

Q1602

SWITCHING

Q1601

VCC

SWITCHING

(FEED BACK)

RL1201

Q1202

Q1201

Q1701

SWITCHING

Q1702

SWITCHING

IC1705

(ISOLATOR)

IC1704

(FEED BACK)

IC1401

(SWITCHING CONTROL)

IC1702

HIGH-VOLTAGE

RESONANT CONTROL

SWITCHING

CONTROL

11612

L1603

HIGH-

VOLTAGE

RESONANT

CONTROL

3 2

IC1703

(ISOLATOR)

Q1705

Q1703

Q1704

Q1404

Q1403

Q1402

Q1401

Q1707 Q1708

3 2

CN1914

PANEL+24V

1-5

P-ON-H2

P-ON-H1

PROTECT3

BACKLIGHT-ADJ

BACKLIGHT-SW

Q1706

BACKLIGHT-ADJ

BACKLIGHT-SW

POWER-RESET TO SYSTEM CONTROL

BLOCK DIAGRAM

D1607-D1610

FONTE STANDBY

PFC

FONTE DO DISPLAY

9-8

Power Supply 2 Block Diagram [46PFL3705D/F7 (Serial No.: YA2A)]

PL10.6BLP2_2

TUNER+35V

AMP+24V

HOT COLD

POWER SUPPLY CBA

HOT CIRCUIT. BE CAREFUL.

Q602

SWITCHING

CONTROL

3 2

IC601

T601

Q601

SWITCHING

CN1802

Q652

SW+5V

TO SYSTEM CONTROL

BLOCKDIAGRAM

PROTECT1

2,3 LCD+12V

P-ON+3.5V

LCD+12V

P-ON+3.3V

P-ON+7.5V

P-ON+5V

P-ON+3.3V

JACK CBA

FRC CBA UNIT

10P-ON+3.5V10

14AMP+24V14

1TUNER+35V1

CN1803 CN5001

3,4LCD+12V3,4

1P-ON+3.3V1

P-ON+3.3V6

P-ON+5V12

P-ON+7.5V8

LCD+12V2,3

WH2102

Q653,Q654

SW+3.3V

(FEED BACK)

+345V

HOT+20V

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

FONTE PRINCIPAL OU DA TV

10-3 PL10.6SCP1

Power Supply 1 Schematic Diagram

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

For continued protection against risk of fire,

replace only with same type 8A, 250V fuse.

CAUTION ! :

ATTENTION : Utiliser un fusible de rechange de même type de 8A, 250V.

8A 250V

CAUTION !

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.

If Main Fuse (F1601) is blown , check to see that all components in the power supply

circuit are not defective before you connect the AC plug to the AC power supply.

Otherwise it may cause some components in the power supply circuit to fail.

TENSÃO DA

REDE ACV

COMANDO

ON/OFF

+B 345V

+B 17 E 20V

PROTEÇÃO

10-4 PL10.6SCP2

Power Supply 2 Schematic Diagram

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

10-5 PL10.6SCP3

Power Supply 3 Schematic Diagram

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

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