NEC DSC-3261HA Bedienungsanleitung

Service Manual

Stereo Color Television

CHASSIS : CM-921F

PAL/SECAM-B/G, D/K, I, H SYSTEM

NTSC 4.43/3.58-M SYSTEM

MODEL :DSC-3261HA

PF32W502(NEC Model)

NEC Corporation

Jan.2003

S/M No: TCM921FEFO

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TABLE OF CONTENTS

1. Specification 2

2. CM-921F EEPROM Presetting DATA 3

3. Circuit block Diagram 5

4. Alignment Instruction 6

5. Trouble Shooting Charts 13

6. Part list(DSC-3261H )20

7. Mechanical Exploded View 37

8. Printed Circuit Board 38

9. Schematic Diagram 41

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1. Specification

1. DSC-3261HA

TV Standard Color System PAL, SECAM, 4.43NTSC(AV), 3.58NTSC

Sound System B/G, D/K, I, M, H

Rated Voltage AC 110V ~ 240V, 50/60Hz

Power Consumption 148W

Sound Output Power Main 8W X 2

HYPER + CHINA + IVORY COAST

Channel Coverage VHF L : E2(48.25MHz) ~ S6(147.25MHz)

VHF H : S7(147.25MHz) ~ S36(423.25MHz)

UHF : A37(431.25MHz) ~ E69(855.25MHz)

Tuning System Frequency Synthesizer Tuning System

Channel Indication On-Screen Display

Programme Selection 100 Programmes

Aux. Terminal AV-input:1, 2(Scart), 3, DVD

AV-output: Scart out, RF out

Remote Control Unit R-50F11(Required two 1.5V batteries type with AA size)

Dimention 890(W) X 573(H) X 560(D)mm

Weight 57 kg

Picture tube 32 Real Flat Type

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1. Pre-setted Chanel for Australian

2. CM-921F EEPROM Presetting DATA

2 PAL 2CH ( 64.25MHz) for Austlaina Field Chanel

7 PAL 7CH (182.25MHz) for Austlaina Field Chanel

9 PAL 9CH (196.25MHz) for Austlaina Field Chanel

10 PAL 10CH (209.25MHz) for Austlaina Field Chanel

28 PAL 28CH (527.25MHz) for Austlaina Field Chanel

PR.

No.

2. Pre-setted Chanel for Mass-production

PAL-B 10CH (623.25MHz)

For white balance

PAL-B 2CH ( 48.25MHz)

For Geometry & Nicam stereo check

PAL-B 5CH (175.25MHz)

For Geometry & 2-carrier dual check

PAL-B 10CH (210.25MHz)

For fuction check

PAL-B 4CH ( 62.25MHz)

For fuction check

SCM-B 12CH (224.25MHz)

For fuction check

PAL-K 18CH (511.25MHz)

For fuction check

PAL-I 31CH (551.25MHz)

For fuction check

PAL-B 8CH (196.25MHz)

For purity & 2-carrier stereo

NTSC 3CH ( 61.25MHz)

For NTSC

NTSC 8CH (181.25MHz)

For NTSC Geomery

PAL-G 21CH (471.25MHz)

reserved

* presetted channel for mass-production can be changed.

White/Black

RETMA

CROSS HATCH

COLOR BAR

PHILIPS

RETMA

COLOR BAR

RED

PR.

No.

COLOR BAR

RETMA

R,B,W

DEM

400Hz 60% MOD. NICAM St. (L :1KHz, R :0KHz)

1KHz 60% MOD. 2-C Dual (Main:1KHz, Sub:5KHz)

400Hz 60% MOD.

1KHz 80% MOD. NICAM Dual(Main:1KHz, Sub:3KHz)

SWEEP 60%(Standard:1KHz, 268Hz~4.2KHz)

400Hz 60% MOD. NICAM St. (L :1KHz, R :0KHz)

5KHz 60% MOD. 2-C St. (L :0KHz, R :5KHz)

1KHz Korean Dual(1KHz,5KHz)

SWEEP (268Hz~4.2KHz)

1KHz 60% MOD.

3. Pre-setted DATA for Adjusments

PAL NTSC

S1 -

S2 -Screen adjustments

S3 -

S4 -

S5 -

V-CENTER +3095 +3927

V-SIZE +151 +138

H-CENTER +86 +87

H-SIZE +1430 +1156

PARABOLA -74 -170

EW TRAPEZ +16 -19

CORNER

H BOW +83 +37

H PARALL

V LINEAR -03 -05

TILT

P H POS

P V POS

P R/G/B Peak

P CONT

P BRIGHT

R/G/B DRIVE

R/G/B BIAS

SUB BRI.

SUB CONT.

BRM

AGC MAIN

AGC SUB

S11 -

S12 -

CONT For Changing SUB-Brightness Adjust Reference

IBRM For Changing Screen Adjust Reference

Not Use

Shipping

SVC Main Menu

S10 AGC

S6 Geometry

S7 PIP

DSC-3261HA

S9 SUB PICTURE

Screen

Sound Test

Picture Test

Heat-Run

Timer LED test

+40

-18

S CORRECT +7

170/170/170

40/40/40

160/160/160

S8 WHITE

BALANCE 17

127

340

remarkKEY

Name Details

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CM-921F EEPROM Presstting DATA

4. CPU option for Function Change

ON with PIP

OFF Without PIP

ON Enable the Digital Sensor

OFF Disable the Digital Sensor

ON for all models, except NEC

OFF Enable the English(NEC)

ON 34"inch

OFF 32"inch

LATIN

EAST

RUSSIA

PERSIAN

ARAB

OFF

ON For PARS Elec

OFF For all Model except PARS

34 Inch

TEXT sel.

English,French,Swedish,Czech,German,Spanish,Italian,Estonian

English,Slovakian,Serbian,Albanian,Polish,Turkian,Rumanian

English,Russian,Bulgaian,Ukrainian,Serbian,Montenegro

English,Farsi

English,Arabic

Teletext Language depends on OSD Language selection

PARS LOGO.

Note : If OSD language & text selec.

is different then Teletext depends on

Text selec.

PIP

Digital EYE

Languge

Wide

OFF

Normal

EXT PORT

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3. circuit block Diagram

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4. Alignment Instruction

1. SERVICE REMOCON & EEPROM PRESETTING DATA

1-1. SERVICE REMOCON : R-34SVC (S/N:48B3034SVC)

1-2. EEPROM PRESETTING DATA

PAL NTSC

-Screen adjustments

V-CENTER +3095 +3927

V-SIZE +151 +138

H-CENTER +86 +87

H-SIZE +1430 +1156

PARABOLA -74 -170

EW TRAPEZ +16 -19

CORNER

H BOW +83 +37

H PARALL

V LINEAR -03 -05

TILT

P H POS

P V POS

P R/G/B Peak

P CONT

P BRIGHT

R/G/B DRIVE

R/G/B BIAS

SUB BRI.

SUB CONT.

BRM

AGC MAIN

AGC SUB

S11

S12

CONT For Changing SUB-Brightness Adjust Reference

IBRM For Changing Screen Adjust Reference

Not Use

Shipping

SVC Main Menu

S10

AGC

Geometry

PIP

DSC-3261HA

SUB PICTURE

Screen

Sound Test

Picture Test

Heat-Run

Timer LED test

+40

-18

S CORRECT +7

170/170/170

40/40/40

160/160/160

WHITE

BALANCE 17

127

340

remarkKEY Name Details

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Alignment Instruction

2. The confirmation of Protection circuit

Protection circuit confirmation is omitted in case of mass production in the factory

2-1. Over Current Protecor (OCP) circuit confirmation

2-1-1. Receive PAL RETMA PATTERN(signal of company:2CH., PAL-B) and adjust

STANDARD MODE in PICTURE.

2-1-2. Connect 1MΩ1/2W between BASE of Q807 and GND, to confirm operating of

PROTECTOR.

2-1-3. The next place, to confirm normal operation when the resister(1MΩ) is removed.”

2-1-4. After Main Power Switch OFF/ON, to confirm normal operation of picture and

sound when turn the set on by remocon.

2-2. High Voltage Protecor (X-ray Protection) circuit confirmation.

2-2-1. Receive PAL RETMA PATTERN(signal of company:2CH., PAL-B), adjust

CONTRAST&BRIGHTNESS to minimun.

2-2-2. Connect 1/6W 15K ohm to R413(1/6W 24K ohm) of POWER PCB in parallel.

Confirm that operation of the SET is SHUT-DOWN condition(High Voltage

Protector).

2-2-3. The next place, to confirm normal operation when the resister(15KΩ) is removed.”

2-2-4. After Main Power Switch OFF/ON, to confirm normal operation of picture and

sound when turn the set on by remocon.

- ON : With PIP Models

- OFF : Without PIP Models

- ON : Enable the Digital Sensor

- OFF : Disable the Digital Sensor

- ON : Enable the all Languge - Multi OSD-Language

- OFF : Enable the English - Only English

- ON : For 34 inch Models Change the Vertical

- OFF : For 32 inch Models Blanking puls width

LATIN : English,French,Swedish,Czech,German,Spanish,Italian,Estonian

EAST : English, Slovakian,Hungarian,Serbian,Albanian,Polish,Turkian,Rumanian

RUSSIA : English,Russian,Bulgaian,Ukrainian,Serbian,Montenegro

PERSIAN : English,Farsi

ARAB : English,Arabic

OFF : Teletext Language depends on OSD Language selection

- ON : Wide

- OFF : Normal

Languge

34 Inch

TEXT sel.

EXT PORT

Note : If OSD language & text selec. is different then Teletext depends on Text selec.

PIP

Digital EYE

- ON : For PARS Elec.

- OFF : For all Model except PARS

PARS LOGO

* Software option for Function Change

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3-1.Confirm the presetting ‘IBRM’data of EEPROM according to CRT.

3-1-1. Default Value of IBRM : IBRM(34inch) = 320, IBRM(29inch Flat) = 340

3-2. Press the [S2] KEY of SVC Remocon, Screen-Adjustment OSD will be

displayed.

3-3. Adjust SCREEN V/R of FBT to Screen-OSD-Bar come to center.

(Screen OSD numeral is between 28 and 34)

3-4. To be complated adjustment of screen. Press the [S2] key to escape

screen adjustment mode.

4-1. Receive PAL CROSSHATCH pattern(signal of company:PAL-B 5 CH)

4-2. Adjust with the static focus volume on FBT to get a clear view of horizontal line.

4-3. Adjust with the dynamic focus volume on FBT to get a clear view of vertical line.

4-4. Repeat 4-2, 4-3, to get a clear picture.

5-1. NITSUKI Setting : Set Nitsuki to the ‘Auto Mode’, Reference to the ‘B’, and

System to the ‘PAL’.

5-2. Setting the Normal Stats

5-2-1. Adjust Picture to Normal mode.

5-2-2. Adjust the Gain of Nitsuki to suitability by manual when condition is Normal.

- Adjust the standard illumination take within limit bright of Nitsuki and luminosity of

SET into acount.

- Exhortative Standard illumination, 32inch : High 70Cd/m2, LOW BEAM : about

15Cd/m2

5-2-3. Press the [S8]key of SVC remocon to adjustment of Whit Balance.

X=0.270, Y=0.280

5-2-4. Memorize in Nitsuki after Adjustment of White Balance.

5-3. Adjustment of White Balance

5-3-1. Receive Nitsuki signal.

5-3-2. Adjust Picture to Normal mode.

5-3-3. The Adjustment of High Beam : Adjust R-DRIVE and G-DRIVE to R,G,B BAR

come to center.

5-3-4. The Adjustment of Low Beam : Adjust R-BIAS and G-BIAS to R,G,B BAR come to

center.

5-3-5. Repeat 5-3-3 and 5-3-4 to R,G,B BAR come to within center+

Alignment Instruction

3. The adjustment of SCREEN

4. The adjustment of FOCUS

5. The adjustment of WHITE BALANCE

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Alignment Instruction

6. The adjustment of AGC

7. The adjustment of GEOMETRY

6-1. Main and Sub AGC DATA are Fixed, but those can be adjusted in case of

need.

6-2. Confirm the Main AGC and Sub AGC by pressing the [S10]key of SVC

remocon.

Main AGC=13, Sub AGC=13

7-1. Press the [S-6]key on the SVC remocon to call up the Geometry mode.

And then, Geometry OSD will be displayed.

7-1-1. All adjustment is base on PAL(50Hz), but it can be base on NTSC(60Hz) in case

of need.

7-1-2. Have regard to change of NTSC(60Hz)-Geometry when Geometry is adjusted in

PAL(50Hz).

7-1-2. Have regard to fixity of PAL(50Hz)-Geometry when Geometry is adjusted in

NTSC(60Hz).

7-2. The adjustment of VERTICAL CENTER

7-2-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH).

7-2-2. Press the PR up/down Keys( / ) to select V CENTER.

Adjust with Vol Up/Down ( / ) keys so that the center mark of the CRT may be

located on the horizontal line in the middle of the pattern. In case of no center

mark, adjust with Vol Up/Down ( / ) keys to obtain a vertically symmetrical

pattern.

7-3. The adjustment of VERTICAL SIZE

7-3-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH).

7-3-2. Press the PR up/down Keys ( / ) to select V-SIZE.

Adjust with Vol Up/Down ( / ) keys sothat the upper and the lower of RETMA

pattern may be located at the boundaries of the screen.

7-4. The adjustment of HORIZONTAL CENTER

7-4-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH).

7-4-2. Press the PR up/down Keys ( / ) to select V-SIZE.

Referring to the both side scales, adjust with Vol Up/Down ( / ) keys so that

RETMA pattern may be symmetrical.

7-5. The adjustment of HORIZONTAL SIZE

7-5-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH).

7-5-2. Press the PR up/down Keys ( / ) to select V-SIZE.

Referring to the both side scale, adjust with Vol Up/Down ( / ) keys.

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