2. Operation Checks and Component Replacement Procedures - This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. - For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required.
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2.2. Replacement for the main P.C.B. - Follow the (Step1)-(Step5) of item 2.1.
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2.3. Replacement for the speakers. - Follow the (Step1)-(Step3) of item 2.1.
3. Schematic Diagram 3.1. Schematic Diagram Notes DOZE switch. SLEEP switch. HOUR switch. MIN switch. ALARM switch. TIME SET switch. S11: BAND switch in “AM” position. AL1-1, AL1-2: RADIO/BUZZER, ALARM, OFF, RADIO/OFF select switch in “RADIO/OFF” position. VR1: Battery back-up VR. VR2-1, VR2-2:...
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Volume control VR. - DC voltage measurements are taken with electronics voltmeter. The negative terminal of the battery provides negative meter connection point. No mark..( )..... - Battery current: Vol. min....FM: 15mA AM: 15mA Vol. max....FM: 36mA AM: 29mA Measurement instruction 74dB/m, 30% Mod.
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READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT 1. Set power source voltage to 230V/50Hz AC. 2. Set volume control to maximum. 3. Set band switch to AM or FM. 4. Output of signal generator should be no higher than necessary to obtain an output reading. - AM-IF ALIGNMENT Signal Generator or Sweep Radio Dial Setting...
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- FM-RF ALIGNMENT Signal Generator or Sweep Generator Radio Dial Indicator Adjustment Remarks Setting (Electronic (Shown in Fig.1 Connections Frequency Voltmeter or oscilloscope) Connect to test 86.2 MHz Variable Connect vert. L7 (FM OSC Coil) [*2] point TP1 through capacitor fully amp.
6.2. Adjustment points Fig.1 Fig.2 Fig.3 7. Replacement Parts List Note: - All parts are supplied by ASPC . - Important safety notice: - Components identified by mark have special characteristics important for safety. - Furthermore, special parts which have purposes of fireretardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc.
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manufacture’s specified parts shown in the parts list. - The parenthesized indications in the Remarks columns specify the areas. (Refer to the cover page for area.) / Parts without these indications can be used for all areas. - Capacity values are in microfarads (uF) unless specified otherwise, P=Pico-farads (pF) F=Farads (F) - Resistance values are in ohms, unless specified otherwise, 1K= 1,000 (OHM), 1M=1,000k (OHM)
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Ref. No. Part No. Part Name & Description Remarks RQTW0040-B O/I BOOK (EB)(GN) / English RQTW0041-E O/I BOOK (EJ) Itarian RSS4B002-B SELECT SW ECKR1H103ZF5 50V 0.01U (EJ)(GN) ECQV1H683JZ3 50V 0.068U (E)(EB) ECKR1H103ZF5 50V 0.01U (EJ)(GN) ECQV1H683JZ3 50V 0.068U (E)(EB) ECKR1H103ZF5 50V 0.01U (EJ)(GN) ECQV1H683JZ3...
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Ref. No. Part No. Part Name & Description Remarks RJP3G4YA CONNECTOR(3P) D1-D4 RL1N4003S-P RECTIFIER DIODE MTZJ10BTA ZENER DIODE D6-D9 RVD1SS133TA SWITCHING DIODE MTZJ6R8BTA ZENER DIODE RVD1SS133TA SWITCHING DIODE K5G400A00001 FUSE PROTECTEOR RVILM8560B CLOCK IC TA2111N TUNER IC C1BA00000360 POWER AMP IC L1,L2 RLQY11G4W-F CHOKE COIL...