Daewoo WP-895F, CP-885F service manual Gnd

Page 33

Service manual WP 895/895F, CP885/885F

4-5 TDA835xJ Vertical Amplifier

The TDA835xJ are power circuit for use in 90o and 110o colour deflection systems for field frequencies of 25 to 200Hz and 16/9 picture tubes. The circuit provides a DC driven vertical deflection output circuit, operating as a highly efficient class G system. Due to the full bridge output circuit the deflection coils can be DC coupled.

The IC is constructed in a Low Voltage DMOS process that combines Bipolar, CMOS and DMOS devices. MOS transistors are used in the output stage because of the absence of second breakdown.

4-5-1 TDA8357J

Features :

-Few external components

-High efficient fully DC-coupled vertical output bridge circuit

-Short rise and fall time of the vertical flyback switch

-Guard circuit

-Temperature (thermal) protection

-High EMC because of common mode inputs

Pinning

Pin	Symbol	Description
1	Vi(pos)	input voltage (positive)
2	Vi(neg)	input voltage
		(negative)

3	Vp	supply voltage
4	VOB	output voltage B
5	GND	ground
6	Vflb	flyback supply voltage
7	VOA	output voltage A
8	VO(guard)	guard output voltage
9	VM	input measuring
		resistor

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Image 33

Contents

Colour Television Contents Circuit description PCB Layout Circuit Diagram Power consumption Main FeaturesSound Output Power Tuning systemSpecification matrix Pin Signal Description Matching value Page C02 C01C03 C04C42 S11 S10S12 S13Special case Country selection = Others Program Group SkipITV RAY Radiation Precaution Safety instructionAlignment instructions Order Default settingh for wpParabola HOR WidthDisable HOR Paral BOW Corner EW Trapez IC description Page Page IC version VCT 3832A Chassis IC marking OSD languages Atss countries TextPin Name Type Short Description Gndaf Supply VCT Page Analogue Section DSP-Section Audio Baseband ProcessingNicam plus FM/AM-Mono German 2-Carrier System Dual FM SystemSECAM-L PALUssr AdrselDvsup ANAIN1 Features Testen XtalinPin Symbol Function GND1 OUT1OUT1+ ModeBlock diagram TDA8944J GND Page Page Inverting input Block diagram TDA6107Q SCL SDAPage Description IC PIN Symbol Rating Unit OCH -F MINCircuit description If section Block diagram Vision if Amplifier Standard Features Page Page Adaptive Comb Filter VCT3834A only Video Sync Processing CRT Measurement and Control Page Stand by ConfigurationDescription Application Page Page Quadrature Mixers ESCPage Page STR-F6654 general description Power supply primary part operationsPage STR-F6654 oscillating operation Latch circuit Overcurrent protection function OCPThermal shutdown circuit TSD Overvoltage protection circuit OVPTV start-up operations TV normal run and stand-by mode operations Page FBT CP885/885F N T R O L L E D Rectifier 6V DC High Service Parts List Spark GAP CBXF1H104Z Cera Semi 50V F 0.1MF Z Tapping CZSL1H220J Cera 50V SL 22PF J Axial CCZB1H222K Cera Coil Peaking Wire Copper Carbon Comp Exploded View Exploded View DTF-29U8 DTP-28A7 Service Man ual WP-895/895F, CP885/885F DTP-28G7 DTP-28G8 Printed Circuit Board Page Page 686, AHYEON-DONG MAPO-GU SEOUL, Korea