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ORDER NO.AD0502014C1 CD Stereo System SC-EN17P SC-EN17PC Colour S....Silver Type System Main Unit: SA-EN17P/SA-EN17PC Speakers: SB-EN17P Specifications MAIN UNIT DA converter: MASH(1 bit DAC) RADIO Terminals Frequency range: Input: AUX; 3.5mm stereo (27kΩ) 87.9 - 107.9 MHz (200kHz steps) Output: PHONES: 3.5mm stereo (32Ω)
SC-EN17P / SC-EN17PC CONTENTS Page Page 1 Accessories 10 Self Diagnostic Function 2 Location of Control 10.1. Setting of self diagnostic Function 3 Safety Precaution 11 Description of Error Code 4 Protection Circuitry 11.1. Error detection for CD Mechanism block...
SC-EN17P / SC-EN17PC 3 Safety Precaution (This “Safety Precaution” is applied only in U.S.A.) 1. Before servicing, unplug the power cord to prevent an electric shock. 2. When replacing parts, use only manufacturer’s recommended components for safety. 3. Check the condition of the power cord. Replace if wear or damage is evident.
SC-EN17P / SC-EN17PC 4 Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed: · No sound is heard when the power is turned on. · Stop during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker with an impedance less than the indicated rated impedance of the amplifier are used.
SC-EN17P / SC-EN17PC (Fig.1) (Fig.2) 6 Precaution of Laser Diode Caution: This unit utilizes a class 1 laser. Invisible laser radiation is emitted from the optical pickup lens. When the unit is turned on: 1. Do not look directly into the pickup lens.
SC-EN17P / SC-EN17PC 7 Prevention of Electro Static Discharge (ESD) To Electrostatically (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES Devices are integrated circuits and some field-effect transistors and semiconductor “chip”...
SC-EN17P / SC-EN17PC 9 Operation Checks and Component Replacement · This section desceibes 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.
SC-EN17P / SC-EN17PC 9.3. Replacement for the CD loading motor and optical pick-up · Follow the (Step 1) - (Step 5) of item 9.1. · Follow the (Step 1) - (Step 7) of item 9.2.
SC-EN17P / SC-EN17PC 9.5. Replacement for the gear chassis R ass’y and gear chassis L ass’y · Follow the (Step 1) - (Step 5) of item 9.1. · Follow the (Step 1) - (Step 7) of item 9.2.
SC-EN17P / SC-EN17PC 9.6. Replacement for the CD lid unit · Follow the (Step 1) - (Step 5) of item 9.1. · Follow the (Step 1) - (Step 7) of item 9.2. · Follow the (Step 1) - (Step 8) of item 9.5.
SC-EN17P / SC-EN17PC 9.8. Replacement for the CD lid unit A, CD lid unit B and slide frame 9.7. Replacement for the clamper, · Follow the (Step 1) - (Step 5) of item 9.1. magnet and fix plate · Follow the (Step 1) - (Step 7) of item 9.2.
SC-EN17P / SC-EN17PC 9.9. Replacement for the lid LED lens, LED P.C.B., CD holder A unit, CD holder A and lift plate · Follow the (Step 1) - (Step 5) of item 9.1. · Follow the (Step 1) - (Step 7) of item 9.2.
SC-EN17P / SC-EN17PC 10 Self Diagnostic Function 10.1. Setting of self diagnostic Function 10.1.1. Setting of self diagnostic mode 1. To enter into self-diagnostic mode: · Press & hold VOL+ key,followed by key for more than 2 seconds. 2. LCD will show the following display as below: (LCD Display) 3.
SC-EN17P / SC-EN17PC · This test is the combination of CD lid operation and the inner and outer disc access operation aging test.The testing process is as follow: CD lid OPEN→Wait for 1sec. open state→CD lid CLOSE→TOC read → Play all tracks → Increment counter (Repeat the whole process).
SC-EN17P / SC-EN17PC foil. 12 Schematic Diagram · Put a conductive mat on the work table. 12.1. Schematic Diagram Notes · Ground the soldering iron. · Do not touch the pins of IC, LSI or VLSI with fingers (All schematic diagrams may be modified at any time with the directly.
SC-EN17P / SC-EN17PC 12.3. Schematic Diagram (SA-EN17) SCHEMATIC DIAGRAM-1 NOTE: CD SERVO CIRCUIT :POSITIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE The number which noted at the connectors on the schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2" indicates the schematic diagram serial number located on the left corner in the...
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SC-EN17P / SC-EN17PC SCHEMATIC DIAGRAM-2 :POSITIVE VOLTAGE LINE :FM SIGNAL LINE :FM OSC SIGNAL LINE TUNER CIRCUIT Note: mark indicate printed coil. :FM/AM SIGNAL LINE :AM SIGNAL LINE :AM OSC SIGNAL LINE 3.3K 4.7K 0.01 3.3K 1000P 1000P 50V3.3 (75kHz) TELESCOPIC 0.01...
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SC-EN17P / SC-EN17PC SCHEMATIC DIAGRAM-3 MAIN CIRCUIT :POSITIVE VOLTAGE LINE :CD PLAYBACK SIGNAL :FM/AM SIGNAL LINE :MAIN SIGNAL LINE LED(1) CIRCUIT CS801 CD OPEN CD CLOSE BUP3.3V R1004 W1004 CP1004 STBY3.3V VREF- MCLK MDATA BLKCK STATUS 0.1V CD RESET 2.5V R206 6.8K...
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SC-EN17P / SC-EN17PC SCHEMATIC DIAGRAM-5 POWER AMP CIRCUIT :POSITIVE VOLTAGE LINE :MAIN SIGNAL LINE :AM SIGNAL LINE IC601 (Lch) C1BA00000379 C406 16V22 R403 JK601 POWER AMP C506 16V22 R503 PHONES (Rch) R406 STAND R506 GND2 GND1 12.7V 4.5V 1.7V 15.2V 15.2V...
SC-EN17P / SC-EN17PC 13 Printed Circuit Board Note: This printed circuit board diagram may be modified at any time with the development of new technology. CD SERVO P.C.B. TUNER P.C.B. R751 R705 VREF CN701 R708 C721 Q700 R725 R723 R712...
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SC-EN17P / SC-EN17PC (14) (E2) C1BA00000379 IC601 (A2) POWER AMP NOTE : CD PLAYBACK SIGNAL LINE : MAIN SIGNAL LINE : FM SIGNAL LINE (21) OUT1 : FM OSC SIGNAL LINE (12) (OUT2) PHONES : AM OSC SIGNAL LINE (D2)
SC-EN17P / SC-EN17PC 2. Tune to the signal (SG 450kHz). 3. Revolve the T1 core and adjust that the output waveforms reaches maximum. (Fig.02) 17.1.5. AM VCO Adjustment 1. Input AM single generator output from the AM loop antenna. 2. Set the electrical voltage meter to TP1 - TP3.
SC-EN17P / SC-EN17PC 18 Terminal Functions of ICs · IC801 (MN101C74FAB1) Microprocessor Pin No. Mark Function LIGHT O Operation switch Pin No. Mark Function Not used 1 - 4 COM0 - COM4 O LCD common output Not used 5 - 7...
SC-EN17P / SC-EN17PC 19 Replacement Parts List Notes: Ref. Part No. Part Name & Remarks Description · Important safety notice: RHW16022 ARM WASHER Components identified mark have special RHDW30003 SCREW RKA0162-K LEG RUBBER characteristics important for safety. RFKGAEN17P-S FRONT CAB ASS’Y...
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SC-EN17P / SC-EN17PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description ECEA1CKA100B 16V 10U C358 ECA1AM102B 10V 1000U ECUV1C473KBV 16V 0.047U C402 ECEA1HKAR22B 50V 0.22U C6,C7 ECUV1H102KBV 50V 1000P C403 ECUV1H471KBV 50V 470P...
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SC-EN17P / SC-EN17PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description C817-19 ECUV1H102KBV 50V 1000P IC700 BA5948FPE2 C820 ECEA1EKA100B 25V 10U IC701 MN6627953HB C821,22 ECUV1H102KBV 50V 1000P IC801 MN101C74FAB1 C826 ECUV1H102KBV 50V 1000P...
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SC-EN17P / SC-EN17PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description ERJ3GEYJ332V 1/10W 3.3K R617 ERJ3GEYJ101V 1/10W 100 ERJ3GEYJ472V 1/10W 4.7K R618,19 ERJ3GEYJ681V 1/10W 680 R16,17 ERJ3GEYJ103V 1/10W 10K R620 ERJ3GEYJ2R2V 1/10W 2.2...
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SC-EN17P / SC-EN17PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description R820 ERJ3GEYJ103V 1/10W 10K R821-23 ERJ3GEYJ102V 1/10W 1K G2BAC0000053 R824 ERJ3GEYJ224V 1/10W 220K T901 G4C4ACD00002 POWER TRANSFORMER R825,26 ERJ3GEYJ1R0V 1/10W 1...