Quasar SP-2725F Service Manual Download | Manualshive

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Printed in USA

K02032215PL0322

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Summary of Contents for SP-2725F

Page 1: ...vice a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this S...

Page 2: ...c shielding The safety glass provide shielding for the tube viewing area against x ray radiation as well as implosion The magnetic shield limits the x ray radiation around the bell of the picture tube...

Page 3: ...lly the melting point is 50 70 F 30 40 C higher Please use a high temperature soldering iron and set it to 700 20 F 370 10 C Pb free solder will tend to splash when heated too high about 1100 F or 600...

Page 4: ...4 Important Safety Notice 2 Safety Precautions 2 About lead free solder pbf 3 Service Notes 5 X Ray Protection Circuit Check Adjustments 6 Receiver feature table 7 Parts List 8 A Board schematic 14...

Page 5: ...he board soldering pads 2 Hold the chip component against the soldering pads with tweezers or with a miniature alligator clip and apply heat to the pad area with a 30 watt iron until solder flows Do n...

Page 6: ...the receiver is returned to the customer If voltages are out of tolerance immediate service and correction is required to insure safe operation and to prevent the possibility of premature component fa...

Page 7: ...input rear front 1 0 Dimensions mm WxDxH in 665 2 x 545 x 594 8 26 2 x 21 5 x 23 4 Weight kg lbs 35 77 2 Power source V Hz 120 60 Anode voltage 29 25kV 1 25kV Video input jack 1Vp p 75 phono jack Aud...

Page 8: ...VF1H103Z CAP C 01UF Z 50V C105 ECA0JM101B CAP E 100UF 6 3V C350 ECA1CM101B CAP E 100UF 16V C351 TCJ2VB1H391K CAP C 390PF K 50V C352 TCJ2VB1H391K CAP C 390PF K 50V C353 TCJ2VB1H471K CAP C 470PF K 50V C...

Page 9: ...C2312 ECEA1HN010UB CAP E 1UF 50V C2313 ECA1EM101B CAP E 100UF 25V C2314 ECA1CM100B CAP E 10UF 16V C2317 ECA1CM102B CAP E 1000UF 16V C2320 ECA1CM100B CAP E 10UF 16V C2330 ECA1CM100B CAP E 10UF 16V C23...

Page 10: ...COIL PEAKING 4 7UH TRANSISTORS Q001 2SD601ARTX TRANSISTOR Q006 2SB709ARTX TRANSISTOR Q007 2SB709ARTX TRANSISTOR Q008 2SB709ARTX TRANSISTOR Q009 2SC1473A TRANSISTOR Q050 2SB709ARTX TRANSISTOR REF NO PA...

Page 11: ...1 10W R362 ERJ6ENF4700V RES M 470 F 1 10W R363 ERJ6GEYJ101V RES M 100 J 1 10W R364 ERJ6GEYJ101V RES M 100 J 1 10W R365 ERJ6GEYJ101V RES M 100 J 1 10W R381 ERJ6GEYJ101V RES M 100 J 1 10W R382 ERJ6GEYJ...

Page 12: ...J 1 10W R2357 ERJ6GEYJ472V RES M 4 7K J 1 10W R2365 ERDS2TJ102T RES C 1K J 1 4W R2370 ERJ6GEYJ103V RES M 10K J 1 10W R3001 ERDS2TJ101T RES C 100 J 1 4W R3005 ERJ6GEYJ334V RES M 330K J 1 10W R3007 ERJ6...

Page 13: ...AP P 068UF K 50V RESISTOR TYPE TOLERANCE C Carbon F 1 F Fuse J 5 M Metal Oxide K 10 S Solid M 20 W Wire Wound G 2 CAPACITOR TYPE TOLERANCE C Ceramic C 0 25pF E Electrolytic D 0 5pF P Polyester F 1pF S...

Page 14: ...14 A Board...

Page 15: ...15 A Board A Board...

Page 16: ...16 A Board...

Page 17: ...17 A Board A Board...

Page 18: ...18 A Board...

Page 19: ...shown on waveform number indicates Hot ground lead connection of the Oscilloscope CAUTION Incorrect ground connection of the test equipment will result in erroneous readings 3 VOLTAGE MEASUREMENTS 1...

Page 20: ...Printed in USA K02032215PL0322...

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