Sanyo mcd zx250f
This is the 12 pages manual for sanyo mcd zx250f.
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Page 1
- 1 - 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) WAVE LENGTH ................. 790 nm - Pickup that emits a laser beam is used on this CD section. LASER BEAM SAFETY PRECAUTION 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 ENN SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN. VARO !-Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen. CLASS 1 LASER PRODUCT LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT IC BLOCK DIAGRAM & DESCRIPTION IC201 BA3308 (Pre-Amp.) IC301 TA8227 (Power Amp.) 1 NF 1 INPUT 1 OUTPUT 1 GND ALC Vcc OUTPUT 2 INPUT 2 NF 223456789 ch1 ch2 ALC MUTE IC501 TC4052(Defferential 4-Channel Multiplexer) OUT c IN OUT c IN OUT c IN OUT c IN OUT c IN OUT c IN OUT c IN OUT c IN12 14 15 11 1 5 2 4 30X 1X 2X 3X 0Y 1Y 2Y 3Y Y-COMMON 13 X-COMMON 6 9 10 INHB A16 V DD 87 V SS VEE LOGIC LEVEL CONVERTER
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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. Set of unit Supply voltage : DC 12.0V Speaker impedance : 8 ohms Standard output : 50 mW Function switch : RADIO a. Parts Location a. AM AdjustmentBand switch : AM Adjusting Connections SGPosition of VTVM Circuit lnput Output FrequencyTuning dial Oscilloscope Connect sweep 1IF generator to(19)IC101 465KHz Low T103 (H) 0and C112(E) 2Tuning Connect AM SG to Connect VTVM to 515 KHz Low end T101 3 coverage test loop speaker terminals. 1640 KHz High end C3 4Connect AM SG to Connect VTVM to 600 KHz 600 KHz MW ANT 5test loop speaker terminals 1400 KHz 1400 KHz C4 b. FM AdjustmentBand switch : FM FM Dummy antenna : 75 ohms unbalance Adjusting Connection position of VTVM Circuit Input Output tuning dial Oscilloscope Connect sweep Connect VTVM to 1IF generator to IC101 generator to (19)PIN 10.7MHz Low T104 andT102 IC101(22)pin (E) IC101(H) and C112(E) 2Tuning Connect FM SG to Connect VTVM to 87.0 MHz Low end L102 3coverage FM ANT(A) & D102(B) speaker terminals. 109.0 MHz High end C1 4Connect FM SG to Connect VTVM to 90.0 MHz 90.0 MHz L101 5FM ANT(A) &D102(B) speaker terminals. 106.0 MHz 106.0 MHz C2 StepAdjustment Closed the output terminal by sweep generator,it place to MW ANT Max. Max. Tracking Step SG Frequency TrackingMax. Max. Adjustment