CHAPTER 7. CHASSIS LAYOUT - Форум по ремонтуmonitor.espec.ws/files/sharp_21mf2-ru__21pf2-ru_205.pdf · chapter 7. chassis layout [1] chassis layout 3 3 3 (qkitpd746wjn3)

21MF2-S/U/RU , 21PF2-S/U/RU

7 – 1

CHAPTER 7. CHASSIS LAYOUT

[1] CHASSIS LAYOUT

33

3

(QKITPD746WJN3 )

3

QP

WB

FD

74

7W

JN3

21MF2-S / U / RU21PF2-S / U / RU

A

C

B

D

E

F

G

H

2 1098765431


CHAPTER 8. BLOCK DIAGRAM

[1] BLOCK DIAGRAM: MAIN UNIT

21MF2-S / U / RU21PF2-S / U /RU

A

C

B

D

E

F

G

H

2 1098765431

8 – 1


19181716151413121110

8 – 2

[2] BLOCK DIAGRAM: CRT UNIT
21MF2-S / U /RU21PF2-S /U / RU

A

C

B

D

E

F

G

H

2 1098765431

8 – 3


9 – 1

TV21MF2-S/U/RU , 21PF2-S/U/RUService Manual21MF2-S/U/RU , 21PF2-S/U/RUMarketE CHAPTER 9. DESCRIPTION ON SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIAGRAM

SAFETY NOTES:

DISCONNECT THE AC PLUG FROM THE AC OUT-

LET BEFORE REPLACING PARTS.

SEMICONDUCTOR HEAT SINKS SHOULD BE RE-

GARDED AS POTENTIAL SHOCK HAZARDS

WHEN THE CHASSIS IS OPERATING.

1.

2.

NOTES:

The unit of resistance "ohm" is omitted.(K = 1000 ohms, M = Mega ohm).

1.

All resistors are 1/16 watt, unless otherwise noted.2.

All capacitors are µF, unless otherwise noted.(P = µµF).

3.

VOLTAGE MEASUREMENT CONDITIONS:

Voltages in parenthesis measured with no signal.1.

Voltages without parenthesis measured with 3mV B & Wor Colour signal.

2.

All the voltages in each point are measured with VTVM.3.

WAVEFORM MEASUREMENT CONDITIONS:

The colour bar generator signal of 1.0V peak applied atpin (41) of IC801.

1.

Approximately 4V AGC bias.2.

SERVICE PRECAUTION:

THE AREA ENCLOSED BY THIS LINE ( - ) IS DI-

RECTLY CONNECTED WITH AC MAINS VOLTAGE.

WHEN SERVICING THE AREA, CONNECT AN ISOLAT-

ING TRANSFORMER BETWEEN TV RECEIVER AND

AC LINE TO ELIMINATE HAZARD OF ELECTRIC

SHOCK.

CAUTION:

This circuit diagram is a standard one, prited circuits may

be subject to change for product improvement without pri-

or notice.

IMPORTANT SAFETY NOTICE:

PARTS MARKED WITH " " ( ) ARE IMPO-

TANT FOR MAINTAINING THE SAFETY OF THE SET.

BE SURE TO REPLACE THESE PARTS WITH SPECI-

FIED ONES FOR MAINTAINING THE SAFETY AND

PERFORMANCE OF THE SET.

32


10 – 1

CHAPTER 10. WAVEFORM

[1] WAVEFORMS

129.16 Vp-p (H) 114.16 Vp-p (H) 140.83 Vp-p (H)

500 Vp-p1.02 KVp-p (H) 52.08 Vp-p (V) 4.08 Vp-p (V) 130 Vp-p (H)

59.16 Vp-p (H)4.58 Vp-p (H)4.83 Vp-p (V) 1.45 Vp-p (V)5.83 Vp-p (H)

0.96 Vp-p (H) 4.75 Vp-p (H) 4.37 Vp-p (H) 5.16 Vp-p (H) 5.29 Vp-p (H)

TV21MF2-S/U/RU , 21PF2-S/U/RUService Manual21MF2-S/U/RU , 21PF2-S/U/RUMarketE CHAPTER 11. SCHEMATIC DIAGRAM
[1] SCHEMATIC DIAGRAM: CRT UNIT ( 21MF2-S / U , 21PF2-S / U )

[2] SCHEMATIC DIAGRAM: CRT UNIT ( 21MF2-RU , 21PF2-RU )

21MF2-S/U21PF2-S/U

A

C

B

D

1 2 3 4 5 6 7 8 9 10

A

C

B

D

1 2 3 4 5 6 7 8 9 10

11 – 1

[3] SCHEMATIC DIAGRAM: MAIN UNIT
21MF2-S/U21PF2-S/U

A

C

B

D

E

F

G

H

2 1098765431

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19181716151413121110

11 – 3


A

C

B

D

E

F

G

H

1 2 3 4 5 6 7 8 9 10

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Documents

CHAPTER 7. CHASSIS LAYOUT - Форум по ремонтуmonitor.espec.ws/files/sharp_21mf2-ru__21pf2-ru_205.pdf · chapter 7. chassis layout [1] chassis layout 3 3 3 (qkitpd746wjn3)