Hitachi C43-FD2000 Manuale utente

CAUTION: Before servicing this chassis, it is important that the service technician read the “Safety Precaution”

and “Safety Notice” in this Service Manual.

SAFETY NOTICE

USE ISOLATION TRANSFORMER WHEN SERVICING

Components having special characteristics are identified by a ! on the schematics and on the parts list in this

service data and its supplements and bulletins. Before servicing the chassis, it is important that the service

technician read and follow the “Safety Precautions” and “Safety Notice” in this Service Manual.

* For continued X-radiation protection, replace picture tube with original type or approved equivalent type.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

CONTENTS

SAFETY NOTICE···························································································· 2

SAFETY PRECAUTIONS··················································································· 3

TECHNICAL CAUTIONS···················································································· 6

SPECIFICATIONS···························································································· 7

CIRCUIT PROTECTION····················································································· 7

GENERALINFORMATION·················································································· 8

CAUTIONS WHEN CONNECTING/DISCONNECTING THE HV CONNECTOR······················· 10

SERVICE ADJUSTMENTS················································································· 11

TROUBLE SHOOTING······················································································ 51

PROTECTION CIRCUIT BLOCK DIAGRAM······························································ 55

EXPLODED VIEW··························································································· 56

REPLACEMENT PARTS LIST·············································································· 60

BLOCK DIAGRAM··························································································· 96

BASIC CIRCUIT DIAGRAM················································································· 97

PRINTED CIRCUIT BOARD················································································· 112

WIRING DIAGRAM··························································································· 120

SERVICE MANUAL

MODEL: C43-FD2000 C50-FD2000

DP2M CHASSIS

PROJECTION COLOR TELEVISION

C43-FD2000 SPECIFICATIONS

Sreen Size : 43 - inch Brightness : 200 cd/m2

(white screen)

Cathode Ray Tube : R P16LXL00

G P16LXL00 Anode Voltage : 30.9kV

B P16LXL00 Speakers :

Power Supply : 220 - 240V AC, 50/60 Hz Front L/R : 12cm x 2

Tweeter: 5cm x 2

Power Consumption : 235W (Operating) Dimension : Height (mm) 1231

Width (mm) 1098

Antenna Impedance : 75 ohm unbalanced Depth (mm) 570

Weight (kg) 66

Receiving Channel : CH (MHz)

43MHz - 863MHz Terminals (Input): Video Audio (L/R) x 5

S-Video x 3

Intermediate Frequency: Component x 2(Y1, CB, CR)

Picture I-F Carrier 38.9MHz

Sound I-F Carrier 32.4MHz Terminals (Output): Monitor

Color Sub Carrier 34.47MHz (Video,Audio [L/R]) x 1

Headphone x 1

Program Selection : 200 Circuit Board Assemblies :

Video Input : 1V 75 ohm C.P.T. (B) P.C.B.

Video Output : 1V 75 ohm C.P.T. (G) P.C.B.

C.P.T. (R) P.C.B.

Audio Input : 470mVrms, 47k ohm Convergence P.C.B.

Signal Sub P.C.B

Stereo Audio Output : 470mVrms, 1k ohm Power/Deflection P.C.B.

Signal P.C.B.

Audio Output Power : 30Watt Power Sup P.C.B.

Terminal P.C.B.

Front : 15W x 2 Power switch P.C.B

Side Terminal P.C.B

Sensor P.C.B

Control P.C.B

CIRCUIT PROTECTION

Fuse (or Device) Circuit Protected Physical Location

F908 4A/25V AC Main primary Fuse Power Sub

F902 3.5A/250V AC Primary Fuse- Signal Power Supply Power Sub

FP01 3.15A/250V AC Primary Fuse - Deflection Power Supply Power Deflection

E903 5A Fuse Protector Over Current Protector Audio +30V Power Supply Power Sub

E904 5A Fuse Protector Over Current Protector SW+11W Power Supply Power Sub

E905 5A Fuse Protector Over Current Protector StandBy Power Supply Power Sub

EP33 5A Fuse Protector Over Current Protector SW+8V Power Supply Power Deflection

EP31 10A Fuse Protector Over Current Protector SW+28V Power Supply Power Deflection

EP32 10A Fuse Protector Over Current Protector SW-28V Power Supply Power Deflection

EP36 0.5A Fuse Protector Over Current Protector (+B Error AMP) Power Deflection

EP35 3A Fuse Protector Over Current Protector (+B Power Supply) Power/Deflection

C50-FD2000 SPECIFICATIONS

Sreen Size : 50 - inch Brightness : 200 cd/m2

(white screen)

Cathode Ray Tube : R P16LXL00

G P16LXL00 Anode Voltage : 30.9kV

B P16LXL00 Speakers :

Power Supply : 220 - 240V AC, 50/60 Hz Front L/R : 12cm x 2

Tweeter: 5cm x 2

Power Consumption : 235W (Operating) Dimension : Height (mm) 1341

Width (mm) 1262

Antenna Impedance : 75 ohm unbalanced Depth (mm) 616

Weight (kg) 103

Receiving Channel : CH (MHz)

43MHz - 863MHz Terminals (Input): Video + Audio (L/R) x 5