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&-uncff FERGUSON NORDMENDE SABA TELEFUNKEN THOMSON

TV Ioi. . .SERVICE MANUALDOCUMENTATION TECHNIQUETECHNISCHE DOKUMENTATION ICC1 7DOCUMENTAZIONE TECNICADOCUMENTACION TECNICA

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WARNING : Before servicing this chassis read the safety recommendations.AlTENTION : Avant toute intervention sur ce ch&ssis, lire /es recommandations de s&uritt?.

ACHTUNG : Vor jedem Eingriff auf diesem Chassis, die Sicherheitsvorschriften lesen.j ATTENZIONE : Prima di intervenire sullo chassis, leggere le norme di sicurezza.IMPORTANTE : Antes de cualquier intervencidn, leer las recomendaciones de seguridad.

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Code : 35063330 - 07 /98 El M - ICC1 7 Print ROSSEELS PRINTING, 0153 01 11 11

INDEXINDEXINDEXINDEX

INFORMATION - INFORMATIONS - INFORMATIONENINFORMAZIONE - INFORMACIONES

@ Chassis group table1 - The electronic chassis configuration (modules) and schematic diagram page numbers.2 - The chassis configuration.

0 Le tableau ci-dessous regroupe :1 - L’environnement blectronique de chaque chassis (modules) et le num6ro de page oti il est decrit.2 - La designation des chassis

(GJ Die nachstehendeTabelle umfaBt:1 - Die elektronischen Baugruppen (Module) der Chassis varianten und die Seiten auf der sie beschrieben werden2 - Die Chassisbezeichnung

0 La tabella qui di seguito contiene:1 - I’ambiente elettronico di ogni telaio (moduli) e il numero di pagina nella quale 6 descritto.2 - La descrizione dei telai

@ El cuadro siguiente agrupa:1 - El entorno electr6nico de cada chasis (m6dulos) y el nljmero de pagina donde esta descrito.2 - La designacibn de 10s chasis

ldentificatlon plate - Plaque signaktiqueTypenschild - Targhetta delle caratteristiche

Placa del fabricanie

list of the chassis in the documentation/He des chassis de /a documentation

chasis especifico

Aufstellung iiber die in dieser Unterlage enthattenen Chawslista de! t&i de//a documentaztone

ksta de /OS chasls de /a documentacidn4

Chassis ICC1 71 DESCl?tPTKZ)N / ADJUST. 1 MICRO.

I I iI,POWER DEFLECTION ONE-CHIP

SIGNALS

, / +lP) (PP) ( D P ) (OS)

I C 1 7 F5RQ026070 I 5to6/7to14 : I%016 I 7t0i a 19to20 ~ 21to22IC17 F5FQO26030 1 ” I I I I << / /

IC17 F5CPO26030 i “ I I / / I I i /

IC17 F5H3026070 ~ “ ‘ I / I I I c,

IC17 F5H3026030 ~ “ ~ “ / I ‘ I tt

IC17 FGCPOl5030 ) ” cc I I 25to26IC17 F6FQ015030 ” ~ ” I I I I 21to22ICI7 F5FQO26070 ” 1 ” / ,

IC17 F5RQ056070 “ ~ “/ / I‘ /t

IC17 F6H3015030 “ I I I / I I I / /

IC17 F5CPO26070 “ I ”I I I I / i

CRT_ _

A U D I O I DOLBY! __

(AP) i

27t028/ I

i

--

35to36

F C B I K D B MAIN_ _ P C B

4 4 37to42/ /

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/ // /

/ // // /

/ ‘ / /

/ ‘

/ ‘

ICC17First issue 07 / 98

CHASSIS ICC1 7

TI I 1

FCBKDB -

KB

ICC1 7

- CRT

SUBAMDP

STEREO -u

-4AMDP 4

-4

ICC1 7

I

FCBKDB

KB

ICC17

I- CRT

FCB ICC1 7KDB -

KB

4ICC17

First issue 07 / 98

GEOMETRY MODE ALIGNMENT

413 picture tube

Signal : 4/3 test pattern

7

413standard mode

z o o m 0

<4l3>zoom 1

1616standard mode

z o o m 0

<16/9>zoom 1

1619 picture tube

Signal : 4/3 test pattern

overscan V=lO7% , H=lO7%

l- Adjust Vertical position and Vertical amplitude2- Adjust Vertical Blanking and linearity

3- Adjust Horizontal position and Horizontal ampltude

I--I

4-Adjust EW Amplitude ,EW Shape and Trapezium

overscan V=l20% , H=l20%

Adjust the vertical height unti l V = 80%

Adjust the vert ical height : V =80%

overscan V=lO7%, H =I 07%

I- Adjust Vertical position and Vertical amplitude2- Adjust Vertical Blanking and linearity

1616standard mode

z o o m 03- Adjust Horizontal position and Horizontal ampltude

II-E

4-Adjust EW Amplitude ,EW Shape and Trapezium/ I

1 4ICC1 7

First issue 07/ 98

LIST OF ABBREVIATIONS - LISTE DES ABREVIATIONS- ABKURZUNGENLISTA DELLE ABBREVIAZIONI - LISTA DE ABREVIACIONES

0 +USYS:

l +U-VIDEO:

l + STDBY- ON:

l +5V DST:

l +5V ON:

0 +5v UP:

l BCL:

l CVBS:

l CVBS-OUT:

l CVBS-TXT:

l DEGAUSS:

l EW:

l FORMAT / BC:

l HDRV:

l HTRl / HTR2:

i LFB:

l MUTE:

0 PO:

l POWER-FAIL:

l RESET:

l SAFETY:

0 SCL:

l SDA:

l SIF:

l TRAP-INFO:

l U-STANDBY:

l U-DRIVER:

l U-TIMER:

l V FLB:

l VGUARD:

l V-RETRACE:

0 V-SUPPLY:

System voltage

Video drive voltage for the CRT board

Standby data (OV standby , 0.6~ switched ON)

5v unregulated voltage from the DST

to supply the tuner and audio MSP device

5v regulated voltage from the DST

to supply the tuner and audio MSP device

Microprocessor supply voltage

Beam current limiting information

Composite video / luminance signal

Composite video output

Composite video for teletext extraction

Degauss signal

East / West

Full white control DATA depending on

16/9 selected format

Horizontal deflection signal

Heater voltage from the DST to CRT PCB

Line Fast Blanking

Mutes audio amplifiers

“Power ON I‘ IP9.5 : reset activated and output = 8v

“PO” = 5v when TV is working in normally

Detection of mains supply and deflection stage failures

Microprocessor reset signal

Safety information from the deflection stage

Serial Clock

Serial Data

Sound IF

31.4Mhz IF trap activation

Standby voltage

Horizontal sync signal from TDA8855H

1 Iv voltage used during “Switch ON “ phaseand “Wake Up“ mode

Vertical flyback reference for the microprocessor/

Safety data generated by the vertical amplifierTDA 8351

42 / 48volts (depending on tube type) generated bythe DST and used for vertical blanking

13.5 to 15.5 volts (depending on tube type) generated

by the DST

~hzndf FERGUSON SABA TELEFUNKEN THOMSON

APPLIED STUDY OF TELEVISION SETS ICC1 7 RACK

CONTENTS

THOMSON Ii&i 1

,

I

/

w

MICROCONTROL

THOMSON RNi

0 l \

CONTENTS

OWER SUPPLY AND FUNCTIONAL SIGNALS ON IROl

:ONTROLS

IEMORIES AND 12C BUS

IENU AND TELETEXT

‘IMER / ON

ITHER PINS ON IROl

iRROR CODES

l l

POWER SUPPLY AND FUNCTIONS SIGNALS FOR IF401

POWER SUPPLY

The power supply for the IROl micro-controller, pins 10; 34 and 52, originates in TIMER mode, from regulator IP87 (MC7812 ano ?he 5V regulator incorporated in IP95. In ON mode, it is supplied with powe: irom the UTIMER voltage via the 5V regulator incorporated in IP95.

CLOCK

A 22 MHz VCO/PLL assembly internal to IROl manages the micro-controller. The quartz, QROI ,4 MHz, is used as a reference for the PLL. The components RR95 CR95 and CR97 constitute the loop filter for the PLFl

RESET

CP98, pin 3 of IP95, is the reset capacitor. When ‘bhe voitage at 9 of IP95 reaches 5V and after a delay of a few milliseconds issued my CP98, pin 6 of IP 95 changes from 0 to 5V. Pin 54 of the IROl receives the RESET information.

DETECTION OF MAINS POWER CUT

This circuit is analysed in the power supply chapter.

NOTES :

W

MEMORIES AND IIC BUS

IR02 MEMORY

IR02 is an EPROM memory with a capacity of 512 Kbytes o’ 4 Mbits. It is the software memory of the IROl and for the default values O! service mode. The lines MMUO to MMU2 are an extension of the address bus.

IR03 MEMORY

II703 is an EEPROM memory, capacity 1 Kbyte or 8 Kbits. It contains the coefficients of service mode, the user adjustments (br;g%ess, contrast, etc.) the synthonised TV channels and if applicable, stand-oy command, etc.

IIC BUS

The IIC bus is charged by pull-up resistors linked to the 5V DC. It is enabled in TIMER and ON modes. It dialogues with or controls the BR03 EEPROM, the tuner, the IF/video/IV01 time bases and the audio processing circuit IS40. Its operating frequency is in the order of 80 KHz. Acknowledgement of receipt of IR03, IV01 and IS40 are taken into account by IROl. In the case of absence of the latter, IROl issues a iaiiure code.

IHOMSONliH

NOTES

--ib I---- 9