Technicolor - Thomson ICC19 Gebrauchsanweisung

Code : 3504.93.50 - 07/97 - ICC19 CHASSIS TELEVISION SETS: PRINCIPLES AND MAINTENANCE.

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ICC19 CHASSIS TELEVISION SETS:

PRINCIPLES AND MAINTENANCE

50-Hz CHASSIS

100-HzCHASSIS

MENUS

NAVILIGHT

CONTENTS

GENERAL INFORMATION-----------------------------------------------------------------------------------------3

MANAGEMENT------------------------------------------------------------------------------------------------------- 5

POWER SUPPLY ---------------------------------------------------------------------------------------------------23

TIME BASES------- ------------------------------------------------------------------------------------------------- 57

HIGH FREQUENCIES/MEDIUM FREQUENCY------------------------------------------------------------ 73

SWITCHING --------------------------------------------------------------------------------------------------------- 79

50-HZ VIDEO-------------------------------------------------------------------------------------------------------- 89

100-HZ VIDEO----------------------------------------------------------------------------------------------------- 103

VIDEOTEXT AND OSD ----------------------------------------------------------------------------------------- 125

RGB AMPLIFIERS------------------------------------------------------------------------------------------------ 129

AUDIO PROCESSING ------------------------------------------------------------------------------------------ 133

DOLBY PROLOGIC --------------------------------------------------------------------------------------------- 139

GENERAL INFORMATION

MANAGEMENT

CONTENTS

• IR001 POWER SUPPLY AND OPERATIONAL SIGNALS

• DATA MANAGEMENT

• CONTROLS

• RMICROCONTROLLER/EPROM COMMUNICATION

• BUSES

• BUS EXPANDER

• OTHER CONTROLS

• SWITCH-ON PROCEDURE

• FRONT PANEL LED CONTROL

• OFF/ON TIMING DIAGRAM

• ERROR CODES

CENTRE DE

FORMATION TECHNIQUE

IP130

DP130 DP133

CP130 CP141

DP134

IP140

REGULATOR

CP142

+5V

IR001

ST90R92

TDA8139

CR009 CR010

QR001

27MHZ

46 48

RP147

40ms

MC7812

LP020

13V (L)

VCC

RESET

123

RESET

CENTRE DE

FORMATION TECHNIQUE

IR001 POWER SUPPLY AND OPERATIONAL SIGNALS

POWER SUPPLY

The power supply to the microcontroller at Pin 23 is active when the IP130

regulator (which produces a 10VSTBY) and the IP140 regulator (which

produces a 5VSTBY from the 10VSTBY) are on Standby. When they are On,

the 13 V (LINE) supply takes over from the 10VSTBY.

CLOCK.

A 27-MHz QR001 quartz stabilises the system clock of the IR001

microcontroller (Pins 46 and 48).

RESET.

CP142, Pin 3 of the IP140 is the Reset capacitor. When the voltage at Pin 9 of

the IP140 has reached 5 V, and after a delay of a few milliseconds given by

CP142, Pin 6 of the IP140 goes from 0 to 5 V. Pin 49 of IR001 receives this

Reset signal.

NOTES :

CENTRE DE

FORMATION TECHNIQUE

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