PROFILI TELRA Mascom PT-92 manual free download

File name Mascom_PT-92_manual.pdf

SERVICE MANUAL PT92 CHASSIS Modification reserved PT-92 Chassis Service Manual CONTENTS PAGE 1.Technical Data 4 2. Recommendation for service repairs 5 3. Handling of MOS chip components 5 4. X-Ray radiation precaution 5 5. Service Menu 6 6. Specification of the connector (Euroscart) 9 7. Component descriptions 10 8. Block Diagrams 11 9. Fault tracing diagram-power supply 14 10. Power Supply circuit diagram 15 11. Troubleshooting guide for main PCB 16 12. Descriptions of the integrated circuits - TDA16846 SMPS IC 17 - TDA935X UOC IC 21 - TDA9875A TV SOUND IC (STEREO) 28 - TDA9870A TV SOUND IC (G. STEREO) 35 - TDA24C16 EEPROM 45 - TDA8351 VERTICAL IC (110O) 47 - TDA8356 VERTICAL IC (90O) 51 - TDA2616 STEREO AUDIO AMPLIFIER (110O) 55 - TDA2615 STEREO AUDIO AMPLIFIER (90O) 57 - TDA7056 MONO AUDIO AMPLIFIER (90O) 60 - TDA7057AQ HP AMPLIFIER 62 - TDA7050 HP AMPLIFIER 64 - TDA6107Q VIDEO OUTPUT AMPLIFIER 67 - TCDT1100 OPTOCOUPLER 69 - TDA9830 TV SOUND AM DEMODULATOR 71 - SAA7710T DOLBY PRO LOGIC SURROUND 75 - BU2508AF HORIZONTAL TRANSISTOR (110O) 80 - BU508DF HORIZONTAL TRANSISTOR (90O) 83 - SPP03N60S5 SMPS MOSFET (90O) 86 - SPP04N60S5 SMPS MOSFET (110O) 88 13. Dolby and secam L mono board and circuits diagrams 90 14. Oscilloscope shapes 93 3 PT-92 Chassis Service Manual TECHNICAL DATA CRT PANEL Visible Picture 47" / 50 cm / 66 cm Deflection Angle 90o / 110o Vertical Frequency 50Hz Horizontal Frequency 15.625Hz ELECTRONIC Program Number 100+AV Teletext Flof text Tuner