Sanyo mcd zx 570 m

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- 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 CLASS 1 LASER PRODUCT LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT 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. IC BLOCK DIAGRAM & DESCRIPTION IC201 BA3308 (Pre-Amp.) IC301 LA4227 (Power Amp.) 1 NF 1 INPUT 1 OUTPUT 1 GND ALC Vcc OUTPUT 2 INPUT 2 NF 223456789 ch1 ch2 ALC MUTE IC401 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 + STANDBY SW BIAS CIRCUIT Ch1 Ch2 THERMAL SHUT DOWN PROTECTION - + - 12 34 56 7 8 9 10 11 12 STANDBYOUT2 BS2 NF2 IN2 DC (FILTER) VCC OUT1BS1 NF1 IN1PRE GND

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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:MW SG Position of VTVM Input Output Frequency Tuning dial Oscilloscope Closed the output Connect sweep termial by sweep generator to 465 KHz Low T103 generator,it place IC101(18) PIN(A) to MW ANT 2 Connect AM SG to Connect VTVM to 520 KHz Low end T101 Max. 3 test loop speaker terminals. 1650 KHz High end C3 4 Connect AM SG to Connect VTVM to 600 KHz 600 KHz MW ANT COIL Max. 5 test loop speaker terminals. 1400 KHz 1400 KHz C4 b.FM AdjustmentBand switch:FM FM Dummy antenna: 75 ohms unbalance SG Position of VTVM Input Output Frequency Tuning dial Oscilloscope 2 Connect FM SG to Connect VTVM to 87.5 MHz Low end L102 Max. 3 FM.ANT & D101(-) speaker terminals. 108.3 MHz High end C1 4 Connect FM SG to Connect VTVM to 90.0 MHz 90.0 MHz L101 Max. 5 FM.ANT & D101(-) speaker terminals. 106.0 MHz 106.0 MHz C2Tuning coverage Tracking Adjusting CircuitConnections Adjustment IF 1 Step StepAdjusting Connection Adjustment Circuit 1IFConnect sweep generator to IC101(24)pin (B)Connect VTVM to generator to IC101 (18) pin (A)10.7 MHz Low T102 T104 Tuning coverage Tracking