Sanyo mcd zx600f

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 IC301 TA8227 (Power Amp.) IC501 LC75342(Function SW) CONTROL CIRCUITLOGIC CIRCUITCCB INTERFACE CONTROL CIRCUIT 15 14 16 17 18 19 20 21 22 24 25 2623 10 9 7 6 58 11 L4 L3 L2 L1 NC NC R1 R2 R3 R4 RSELO RIN RTRE RBASS1 RBASS2 ROUTLSELO LIN LTRE LBASS1 LBASS2 LOUT TEST V SS CE DI CL V DD Vref NC 12 13 1 2 30 29 28 274 3 LVref RVref 1 2 3 Pin No. Function 1 INPUT 2COMMON 3 OUTPUT IC401 KIA7808(Voltage Regulator)

Page 2

- 3 - - 2 - TUNER ADJUSTMENTS WIRING CONNECTION This is a basic wiring connection. 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 Adjusting Connections SGPosition of VTVM Circuit lnput Output FrequencyTuning dial Oscilloscope Connect sweep 1IF generator to(19)IC101 450KHz Low T103 (H) 0and C130(E) 2Tuning Connect AM SG to Connect VTVM to 522 KHz Low end T101 VT Low: 1.5V±0.1 3 coverage test loop speaker terminals. 1611 KHz High end VT Hi: 7.5V±0.2 4Connect AM SG to Connect VTVM to 603 KHz 603 KHz MW ANT 5test loop speaker terminals 1404 KHz 1404 KHz CT102 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) 10.7MHz Low (22)pin (H) & IC101(H) and C130(E) IC101(23)pin (E) 2Tuning Connect FM SG to Connect VTVM to 87.5 MHz Low end L102 VT Low : 2.1V±0.1 3coverage FM ANT(H) D101 speaker terminals. 108 MHz High end VT Hi : 7.2V±0.1 4Connect FM SG to Connect VTVM to 90.0 MHz 90.0 MHz L101 5FM ANT(H) D101 speaker terminals. 106.0 MHz 106.0 MHz CT101 Tracking StepAdjustment Closed the output terminal by sweep generator,it place to AM ANT Max. Tracking Step SG Frequency Max. Adjustment BIAS O/N 450KHZ T103/2070 T101/612R L102 CT101 FM/ANT L101 CT102 AM/ANT OUT RESET O/N 10.7MHZ This is a basic tuner adjustments.