BEKO BEKO chassis 14.2 02 free download

File name BEKO chassis 14.2 02.pdf

SM-142 R Service Manual - SM-142 CONTENTS PAGE Safety Instructions 1 Technical Specifications 2 Instructions Manual 4 Pin Voltages of IC's 15 Pin Voltages of Some Transistors 18 Oscillograms 19 Electrical and Service Adjustments 21 Trouble Shooting Guide 24 Convergence Adjustments 31 Channel Frequency Tables 33 Part List 37 Circuit Diagrams Attached PIN VOLTAGES OF IC'S IC101 (TDA956X H) TV signal processor-Teletext Decoder with embedded u-Controller Pin Connection V DC (*) Pin Connection V DC (*) 1 Volume +/- 3,2 (3,2) 41 Gnd for TV processor 0 (0) 2 Status 1 0 (0) 42 External CVBS input 0 (0) 3 Status 2 0 (0) 43 Gnd for TV processor 0 (0) 4 Digital ground for u-controller 0 (0) 44 SVHS-Y input 3.35 (0) 5 Not connected 0.75 (0.25) 45 SVHS-C input 0 (0) 6 Standby on/off 0.01 (3.9) 46 White stretch capacitor 3.4 (0) 7 Analog Gnd of text decoder and dig Gnd of TV 0 (0) 47 CVBS output 2.8 (0.07) processor 8 Secam PLL decoupling 2.3 (0) 48 Audio output/AM audio output 3.45 (0) 9 2nd supply voltage TV proc (8V) 8.0 (0.26) 49 2nd IF video output (not conn.) 10 Supply volt.deccoup. of dig. Gnd of TV 5.0 (0) 50 2nd RGB / YUV insertion input 0.17 (0) processor 11 Phase 2 filter 2.73 (0) 51 Red input 2.6 (0) 12 Phase 1 filter 3.9 (0) 52 Green input 2.6 (0) 13 Gnd 3 for TV processor 0 (0) 53 Blue input 2.6 (0) 14 Decoupling bandgap 4.0 (0) 54 Beam current limiter input 2.6 -3.4 (0) 15 AVL (90 versions) / East/West drive signal (110 3.0 (0.5) 55 Black current input / V-guard input 4.6-5.7 (0) versions) 16 V-drive B output 1.0 (0)