Service Manual - Cenatel

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4-5 TDA835xJ Vertical Amplifier The TDA835xJ are power circuit for use in 90 o and 110 o 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 - 30 -
4-5-2 TDA8358J An East-West output stage is provided that is able to sink current from the diode modulator circuit. Features : - Few external components - Highly 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 - East-West output stage - 31 -
Page 1 and 2: S/M No. : TWP895BEF0 Service Manual
Page 3 and 4: Specification matrix CHASSIS NAME W
Page 5 and 6: 19 Video Output 1 Vpp 3dB, Impedanc
Page 7 and 8: CH EUROPE CCIR FRANCE GB(IRELAND) E
Page 9 and 10: 1-3 ATSS sorting method The TV set
Page 11 and 12: 2 - Safety instruction WARNING: Onl
Page 13 and 14: 3-3 Microcontroller configuration :
Page 15 and 16: CORNER EW TRAPEZ 3-4-8- AGC - Adjus
Page 17 and 18: Horizontal scaling ( 0.25 to 4 ) Pa
Page 19 and 20: • Inventory of transmitted Telete
Page 21 and 22: 1 Power 2 AGC 3 S/B 5V 4 Gnd 5 MOD
Page 23 and 24: - high deviation FM-mono mode (max.
Page 25 and 26: Pin No. Pin Name Type Short descrip
Page 27 and 28: 4-3-4 Block diagram Pin Symbol Func
Page 29: Block diagram TDA8944J - 29 -
Page 33 and 34: 4-6 TDA6107Q The TDA6107Q includes
Page 35 and 36: 4-6 24C16 - 16 Kb EEPROM features :
Page 37 and 38: 4-8-4 Pins description pin name sym
Page 39 and 40: 5 - Circuit description 5-1 Block d
Page 41 and 42: SAW filters Ref. Standard Features
Page 43 and 44: 5-3 Video - VCT description 5-3-1 I
Page 45 and 46: 5-3-11 Video Sync Processing To ext
Page 47 and 48: 5-3-20 EHT Compensation The vertica
Page 49 and 50: 23, in each frame. This is bi-phase
Page 51 and 52: can always be overridden by the use
Page 53 and 54: 5-6-4 NICAM decoder In case of NICA
Page 55 and 56: 5-9 Power supply (STR F6654) 5-9-1
Page 57 and 58: 5-9-2-2 STR-F6654 oscillating opera
Page 59 and 60: 5-10 TV start-up, TV normal run and
Page 61 and 62: On normal run mode, I501 microcontr
Page 63 and 64: - 65 - D801...D804 GRAETZ BRIDGE SW
Page 65 and 66: 6. Service Parts List CAUTION “
Page 67 and 68: LOC PART CODE PART NAME DESCRIPTION
Page 73 and 74: 7. Exploded View 7-5 DTP-28B1 - 73

Service Manual - Cenatel

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