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File name SAMSUNG MAX-WS_ZS730_750.pdf

3 CD CHANGER MINI MINI COMPONENT MAX-WS730/WS730S/ZS730/ZS730G MAX-WS750/WS750S/ZS750/ZS750G SERVICE MIMI MIMI COMPONENT SYSTEM Manual CONTENTS 1. Alignment and Adjustments 2. Exploded Views and Parts List 3. Electrical Parts List 4. Block Diagrams 5. PCB Diagrams 6. Wiring Diagram 7. Schematic Diagrams - Confidential - 1. Alignment and Adjustments 1-1. Tuner FM THD Adjustment SSG FREQ. Adjustment point (FM DET) Output 98 MHz FM DETECTOR COIL 60 dB Output GND FM S.S.G FM Antenna SET Terminal Input Speaker Terminal output Distortion Meter Oscilloscope Input Minumum Distortion (0.4% below) (Figure 1-1) Figure1-1 IF CENTER and THD Adjustment FM Search Level Adjustment SSG FREQ. Adjustment point (SVR1) Output 98 MHz BEACON SENSITIVITY SEMI-VR(10K) 28 dB(±2dB) 20 k 28 dB FM Antenna SET FM S.S.G GND FM IN * Adjustment Location of Tuner PCB Adjust SVR1 (Figure 1-2) *Adjust FM S.S.G level to 28dB ITEAM Received FREQ. Adjustment point AM(MW) OSC Adjustment 522~1611 KHz MO 1~7.0±0.5V AM(MW) RF Adjustment 594 KHz MA Maximum Output(Fig1-4) LW OSC Adjustment 146~290 KHz LO 2~7.0±0.5V LW RF Adjustment 150 KHz LA AM(MW) I.F Adjustment Maximum Output(Fig1-4) Figure1-2 FM Auto Search Level Adjustment 60cm AM IF OUTPUT AM SSG 450KHZ INPUT Output SSG FREQ. Frequency Adjustment point 450 kHz 522 kHz AM IF AM ANT IN Speaker Terminal Maximum output (Figure 1-3) VTVM OUTPUT Oscilloscope Figure1-3 AM I.F Adjustment Fig 1-4 OSC Voltage Samsung Electronics 1-1 Alignment and Adjustments 1-1-2 AM(MW),LW,SW1,SW2 Adjustment Circuit to be Adjusted Measuring Instrument & Step Arrangement S.S.G Radio dial Adjusting Frequency Setting Point Adjust for 1 OSC Connect AM signal generator to loop antenna,VTVM AND oscilloscope (Fig 1-3) 522KHz 522KHz MW OSC Adjust for (IR117) 1.0V±0.1V at the low. 2 1611KHz 1611KHz MW OSC Check for 7.0V±1.0V at the high. (IR117) AM (MW) RF " 1 594KHz 594KHz MW ANT Maximum out INTER FREQ " Fig 1-3 1 1 2 455KHz 522KHz 146KHz 290KHz TL2 LW OSC LW OSC LW ANT SW1 OSC SW1 ANT SW2 OSC SW2 ANT Maximum out Adjust for 2.0V±0.1V at the low. OSC LW RF OSC SW1 RF OSC SW2 RF Check for 7.0V±1.0V at the high. 1 Fig 1-3 1 2 1 Fig 1-3 1 2 1 150KHz 150KHz 2.3MHz 7.3MHz Maximum out Adjust for 1.0V±0.1V at the low. Check for 8.5V±1.0V at the high. 3.5MHz 3.5MHz 9.5MHz 26.1MHz Maximum out Adjust for 1.5V±0.1V at the low. Check for 8.0V±1.0V at the high. 10MHz 10MHz Maximum out 1-2 Samsung Electronics Alignment and Adjustments 2. Cassette Deck 2-1. To Adjust Tape Speed Notes 1) Measuring tape: i) MTT-111 (or equivalent) (Tapes recorded with 3kHz) ii) MTT-5512 (or equivalent) 2) Connect the SPK OUT of the MAIN PCB to the frequency counter as in figure 1-5. MAIN PCB Frequency Counter 2-2. To Adjust PlayBack Level/REC Notes 1) Before the actual adjustment, clean the play/recording head. 2) Measuring tape : i) MTT-114N(or equivalent 10kHz AZIMUTH control) ii) MTT-5512 3) The cassette deck is connections as