Sanyo dc mcr50
This is the 16 pages manual for sanyo dc mcr50.
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Page 1
- 1 - LASER BEAM SAFETY PRECAUTION -Pick-up that emits a laser beam is used in this CD player section. CAUTION : USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE LASER OUTPUT .......... 0.6 mW Max. (CW) WAVELENGTH ............. 790 nm CAUTION – INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. ADVARSEL – USYNLIG LASER STRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅ UDS ÆTTELSE FOR STRÅLING. VARNING – OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG. VORSICHT – UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN. VARO – AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KA TSO SÄTEESEEN. IC BLOCK DIAGRAM & DESCRIPTION IC101 LA1823 (FM/AM MIX.) IC401 KIA7808 (Regulator) 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 AM RFAM MIX AM OSC OSC BUFFER FM MIXFM OSC IF BUFFER FM IFAM IF FM S-METER AM DET PHASE COMP MUTE V CC2 GND2 REG V CC1GND1AGC ST TRIG ST SW VCO DECODER FF FFFF SDPILOT DETFM DET FM RF IC102 LC72131 (PLL) 1 2 3 Pin No. Function 1INPUT 2COMMON 3 OUTPUT
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- 2 - TUNER ADJUSTMENTS Use a plastic screw driver for adjustments. Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter. Supply voltage : DC 12.0V Phones impedance : 32 ohms Function switch : RADIO a. Parts Location b. AM Adjustment BAND SELECT SWITCH: AM. Ste p Adjusting Tuning Input Connection Output Connection Adjustment VTVM Oscilloscope circuit Frequency Measurement InputMeasurement Output Parts OR VT. VOLT. IC101PIN19(H) 1 IF 999 kHz AM Sweep Loop ANT VTVM IC101PIN6(E)T102 (450 KHz) GenertorOscilloscope 2Tuning 522 KHz Digital C131(H), T101 1.50V+/- 0.05 V 3Coverage 1611 kHz Voltmeter C131(E) Confirm 7.8V+/-0.8 V 4603 kHz AM Signal VTVM C146TU(L)L106 5Tracking 1404 kHz GeneratorLoop ANT Oscilloscope IC101 pin6(E) TC101Maximum b. FM Adjustment BAND SELECT SWITCH: FM. FM Dummy Antenna : 75 ohm unbalance StepAdjusting Tuning Input Connection Output Connection Adjustment VTVM Oscilloscope circuit Frequency Measurement InputMeasurement Output Parts 1 IF 98.0 MHz FM Sweep IC101(5)H VTVM IC101PIN19(H) (10.70 MHz) Genertor IC101(6) EOscilloscope IC101PIN6(E) (Non-adjustment) 2Tuning 87.5 MHz Digital C105(H) L103 2.0V+/- 0.2V 3Coverage 108 MHz Voltmeter C105(E) 490.0 MHz FM Signal C110 (H) VTVM C146TU(L)L102 5Tracking 106.0 MHzGenerator IC101(6)EOscilloscope IC101 pin6(E) TC102 Confirm6,5V+/- 0.8V Maximum