HITACHI CL2854AN - Service Manual Immediate Download

December 1999

No. 0105

CL2554AN

CL2854AN

SERVICE MANUAL

MANUEL D'ENTRETIEN

WARTUNGSHANDBUCH

CAUTION:

Before servicing this chassis, it is important that the service technician read

the "Safety Precautions" and "Product Safety Notices" in this service manual.

ATTENTION:

Avant d'effectuer l'entretien du châassis, le technicien doit lire les

«Précautions de sécurité» et les «Notices de sécurité du produit» présentés

dans le présent manuel.

VORSICHT:

Vor Öffnen des Gehäuses hat der Service-Ingenieur die ,,Sicherheitshinweise"

und ,,Hinweise zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.

Data contained within this Service

manual is subject to alteration for

improvement.

Les données fournies dans le

présent

manuel

d'entretien

peuvent

faire

l'objet

de

modifications

en

vue

de

perfectionner le produit.

Die in diesem Wartungshandbuch

enthaltenen

Spezifikationen

können

sich

zwecks

Verbesserungen ändern.

Service manual CL2554AN / CL2854AN

- 1 -

Contents

1 - Main features

1-1 Specifications

1-2 Channel table

1-3 ATSS sorting method

2 - Safety instruction

3 - Alignment instructions

3-1 Microcontroller configuration : Service mode

3-2 Microcontroller configuration : Option

3-3 TV set Alignment

4 - IC description

4-1 TDA936x TV signal processor - Teletext decoder with embedded m-Controller.

4-2 MSP3415D Multistandard Sound Processor

4-3 TDA894xJ Stereo Audio Amplifier

4-4 TDA835xJ Vertical Amplifier

4-4-1 TDA8357J

4-4-1 TDA8358J

4-5 TDA6107Q

4-6 24C08 8 Kbit EEPROM

4-7 STR - F6653

5 - Circuit description

5-1 Block diagram

5-2 IF

5-3 Source switching

5-4 m-Controller I/O pin configuration and function

5-5 Sound processing

5-6 Sound amplification

5-7 Vertical deflection

5-8 Power supply (STR F6653)

5-9 TV start-up, TV normal run and stand by mode operations

6 - Replacement parts list

Service manual CL2554AN / CL2854AN

- 2 -

1-1 Specifications

TV standard

PAL - SECAM B/G D/K, PAL I/I, SECAM L/L'

Sound system

NICAM B/G, I, D/K, L,

FM 2Carrier B/G, D/K

Power consumption

21" : 49 W approx.

28" : 75 W approx.

Sound Output Power

21" : 4.5W x 2 (at 60% mod, 10%THD)

28" : 7W x 2 (at 60% mod, 10%THD)

Speaker

20", 21" : 7W 8 ohm x2

25", 28" : 12W 8 ohm x2

Teletext system

10 pages memory FASTEXT (FLOF or TOP)

Aerial input

75 ohm unbalanced

Channel coverage

Off-air channels, S-cable channels and hyperband

Tuning system

frequency synthesiser tuning system

Visual screen size

20" : 48 cm

21" : 51 cm

25" : 59 cm

28" : 66 cm

Channel indication

On Screen Display

Program Selection

100 programmes

Aux. terminal

EURO-SCART 1 : Audio / Video In and Out, R/G/B In, Slow and

Fast switching.

EURO-SCART 2 : Audio / Video In, SVHS In.

Audio-Video Jack on front of cabinet in common connection with

EURO-SCART 2.

Headphone jack (3.5 mm) on front of cabinet

Remote Control Unit

R-40A01

21 Pin EURO-SCART 1 :

Signal Description

Matching value

1

Audio Output Right

0.5 Vrms, Impedance < 1 kW, ( RF 54% Mod )

2

Audio Input Right

0.5 Vrms, Impedance > 10 kW

3

Audio Output Left

0.5 Vrms, Impedance < 1 kW, ( RF 54% Mod )

4

Audio Earth

5

Blue Earth

6

Audio Input Left

0.5 Vrms, Impedance > 10 kW

7

Blue Input

0.7 Vpp ±0.1V, Impedance 75W

8

Slow Switching

TV : 0 to 2V, AV 16/9 : 4.5 to 7V, AV 4/3 : 9.5 to 12V ,

Impedance > 10 kW

9

Green Earth

10

N.C.

11

Green Input

0.7 Vpp ± 0.1V, Impedance 75W

12

N.C.

13

Red Earth

Service manual CL2554AN / CL2854AN

- 3 -

14

Blanking Earth

15

Red Input

0.7 Vpp ± 0.1V, Impedance 75W

16

Fast Switching

0 to 0.4V : Logic "0", 1 to 3V : Logic "1", Impedance 75W

17

Video Out Earth

18

Video In Earth

19

Video Output

1 Vpp ± 3dB, Impedance 75W

20

Video Input

1 Vpp ± 3dB, Impedance 75W

21

Common Earth

21 Pin EURO-SCART 2 :

Signal Description

Matching value

1

N.C.

2

Audio Input Right

0.5 Vrms, Impedance > 10 kW

3

N.C.

4

Audio Earth

5

Earth

6

Audio Input Left

0.5 Vrms, Impedance > 10 kW

7

N.C.

8

N.C.

9

N.C.

10

N.C.

11

N.C.

12

N.C.

13

Earth

14

Earth

15

Chroma Input

±

3dB for a luminance signal of 1 Vpp

16

N.C.

17

Earth

18

Video In Earth

19

N.C.

20

Video Input, Y In.

1 Vpp ± 3dB, Impedance 75W

21

Common Earth

Service manual CL2554AN / CL2854AN

- 4 -

1-2 Channel table

FREQUENCY TABLE

CH

EUROPE CCIR

FRANCE

GB(IRELAND)

EAST OIRT

C01

46.25

47.75 (L')

45.75

49.75

C02

48.25

55.75 (L')

53.75

59.25

C03

55.25

60.5 (L')

61.75

77.25

C04

62.25

63.75 (L')

175.25

85.25

C05

175.25

176.00

183.25

93.25

C06

182.25

184.00

191.25

175.25

C07

189.25

192.00

199.25

183.25

C08

196.25

200.00

207.25

191.25

C09

203.25

208.00

215.25

199.25

C10

210.25

216.00

223.25

207.25

C11

217.25

189.25 (LUX)

231.25

215.25

C12

224.25

69.25 (L')

239.25

223.25

C13

53.75

76.25 (L')

247.25

-

C14

-

83.25 (L')

49.75

-

C15

82.25

90.25

57.75

-

C16

-

97.25

65.75

-

C17

183.75

-

77.75

-

C18

192.25

-

85.75

-

C19

201.25

-

C20

-

C21

471.25

C22

479.25

C23

487.25

C24

495.25

C25

503.25

C26

511.25

C27

519.25

C28

527.25

C29

535.25

C30

543.25

C31

551.25

C32

559.25

C33

567.25

C34

575.25

C35

583.25

C36

591.25

C37

599.25

C38

607.25

C39

615.25

C40

623.25

C41

631.25

C42

639.25

C43

647.25

C44

655.25

C45

663.25