ORDER NO. MD0704047CE CD Stereo System SA-AK350GCP Colour (S)... Silver Type Notes: This model’s CD mechanism changer unit is CRS1. Please refer to the original Service Manual (Order No. MD0509368C0) for this mechanism. Specifications n AMPLIFIER SECTION 250 mV, 14.7 kΩ...
SA-AK350GCP C-60 cassette tape Bit rate n DISC SECTION 32 kbps to 320 kbps Disc played [8 cm or 12 cm] Sampling frequency (1) CD-Audio (CD-DA) 32 kHz, 44.1 kHz, 48 kHz (2) CD-R/RW (CD-DA, MP3* formatted disc) Audio output (MP3)
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SA-AK350GCP 10.8. Disassembly of Transformer P.C.B. 17.1. CD Servo Diagram 10.9. Disassembly of Power P.C.B. 17.2. Deck/ Deck Mechanism Diagram 10.10. Disassembly of Front Panel Unit 17.3. Main Diagram 10.11. Disassembly for Panel P.C.B. 17.4. Panel Diagram 10.12. Disassembly of Tact Switch P.C.B.
SA-AK350GCP 1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, ensure that all the protective devices such as insulation barriers and insulation papers shields are properly installed.
SA-AK350GCP · No sound is heard when the power is turned on. · Sound stops 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 systems with an impedance less than the indicated rated impedance of the amplifier are used.
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SA-AK350GCP 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Caution Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
SA-AK350GCP 3 Handling Precautions For Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by the static electricity of clothes or our human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
SA-AK350GCP 4 Precaution of Laser Diode Caution : This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm Maximum output radiation power from pick up : 100 µW/VDE Laser radiation from pick up unit is safety level, but be sure the followings: 1.
SA-AK350GCP 5 About Lead Free Solder (PbF) 5.1. Service caution based on legal restrictions 5.1.1. General description about Lead Free Solder (PbF) The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation.
SA-AK350GCP 8 New Features 8.1. Using the Music Port and Connecting & Playing a USB Mass Storage Class Device This feature enables you to enjoy music from a portable audio equipment.
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SA-AK350GCP With reference to page 15 of the operating instruction manual.
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SA-AK350GCP With reference to page 16 of the operating instruction manual.
SA-AK350GCP 9 Self diagnosis and special mode setting This unit is equipped with functions for checking and inspecting namely: Self-Diagnostic and Test Mode. 9.1. Service Mode Summary Table The service modes can be activated by pressing various button combination on the main unit and remote control unit. Below is the...
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SA-AK350GCP 9.2.1. EEPROM Checksum (ROM Correction) Purpose: To check for microprocessor firmware version and EEPROM checksum (ROM correction).
SA-AK350GCP Below are the procedures for this mode. Step 1: Enter into Doctor mode (for more information, refer to section 9.2 on the key operation to enter into this mode. Step 2: Check for firmware version and EEPROM checksum (By pressing STOP button on main unit followed by “4” and “7” on remote control).
SA-AK350GCP 9.4. Error code Table Display Self-Diagnosis Function (refer Section 9.2) provides information on any problems occuring for the unit and its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held unless it is cleared.
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SA-AK350GCP 9.4.2. Error Code Table For CD Changer Block...
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SA-AK350GCP 9.4.3. Error Code Table For Power Supply 9.4.4. CRS1 Error Code display CRS1 Error Code display 1. The errors that occured in CRS1 Mechanism can be recalled and displayed, in the order of the occurence under self-diagnostic for procedures to enter this mode.
SA-AK350GCP 10 Assembling and Disassembling 10.1. Caution Special Note: This model uses a new CD changer unit CRS1. In this following section does not contain the necessary disassembly & assembly information for the CD changer unit (CRS1) except the disasembly & assembly of traverse unit. Kindly refer to the original service manual for the CD changer unit.
SA-AK350GCP 10.2. Disassembly flow chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart as below.
SA-AK350GCP 10.4. Disassembly of Top Cabinet Step 1 Remove 3 screws on both sides on top cabinet. Step 2 Remove 5 screws at the rear. Step 3 Lift the sides of top cabinet outwards. Step 4 Push the top cabinet backwards to release catches.
SA-AK350GCP Step 4 Lift the CD changer unit upwards to remove it. Step 5 Remove 2 screws. · Disassembly of Mecha Chassis Step 6 Remove the Mecha Chassis. Note: For disassembly & assembly of traverse unit, please refer to section 10.16 of this service manual. Please refer to original Service Manual for the Disassembly and Assembly of the CD Changer Unit (CRS1).
SA-AK350GCP 10.9. Disassembly of Power P.C.B. · Follow the (Step 1) - (Step 5) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.5 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 3) of Item 10.7 Step 1 Remove the 4 screws on Power P.C.B..
SA-AK350GCP Step 3 Remove up the heat sink sub assembly (with IC5501). Step 4 Remove screw and IC clip. Step 5 Remove IC5501 from the sub assembly. Caution: During assembly of the heat sink sub assembly (with IC5501) all soldering points is touch-up to avoid dry- joints.
SA-AK350GCP 10.13. Disassembly of USB P.C.B. · Follow the (Step 1) - (Step 5) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.5 · Follow the (Step 1) - (Step 5) of Item 10.10 Step 1 Remove 2 screws at USB unit.
SA-AK350GCP Step 3 Tilt the cassette mechanism unit in the direction of arrow (1), and then remove it in the direction of arrow (2). Step 2 Push the lever upward, and then open the cassette lid Note: For disassembly of parts for deck mechanism unit, ass’y.
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SA-AK350GCP Step 3: Remove the traverse unit as arrow shown. · Assembly of Traverse Unit Step 1: Press and hold the plunger lever and rotate the gear as arrows shown until it stop. Step 1: Turn over the unit and install the traverse unit.
SA-AK350GCP Step 2: Push the traverse slide plate as arrow shown to lock the traverse unit. 10.17. Disassembly for Deck Mechanism · Follow the (Step 1) - (Step 4) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.5 ·...
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SA-AK350GCP 10.17.2. Replacement of Motor, Capstan Belt A, Capstan Belt B, and Winding Belt...
SA-AK350GCP · Follow the (Step 1) - (Step 3) of Item 10.15 Step 1 Remove 1 screw. Step 2 Desolder plunger terminals. Step 3 Release catches. Step 4 Remove Deck Mechanism P.C.B.. 10.19. Disassembly of cassette lid · Follow the (Step 1) - (Step 4) of Item 10.4 ·...
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SA-AK350GCP Step 2 Push the lever upward and open the cassette lid. Remove the cassette tape. Note: Follow 10.19 Disassembly of cassette lid (Step1) to (Step 3). Remove the cassette tape.
SA-AK350GCP 11 Service Fixture and Tools Service Tools Extension FFC (A) Deck P.C.B. - Main P.C.B. REEX0485 (14 Pins) 12 Service Positions Note: For description of the disassembly procedures, see the Section 10. 12.1. Checking and Repairing of Main P.C.B.
SA-AK350GCP 13 Procedure for Checking Operation of Individual Parts of Deck Mechanism Unit 13.1. Operation Check with Cassette Tape 1. Pull up the EJECT lever using a rubber band. (Fig. 6) 2. Supply DC5V to MOTOR. (→ MOTOR rotates.) (Fig. 5) 3.
SA-AK350GCP 14 Measurement And Adjustments 14.1. Cassette Deck Section 14.1.1. Requirements · Test tape (QZZCFM) (QZZCWAT) · Normal blank cassette tape (QZZCRA) · Digital frequency counter · Oscilloscope · Electrical voltmeter · Headphone jack output jig (Fig 8) 14.1.2. Setting of Unit ·...
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SA-AK350GCP Fig. 10 Fig. 11 14.1.5. Bias Voltage Check 1. Connect an electrical voltmeter. (Fig 12) ( Fig 9 for location of test points) 2. Set the function to “TAPE” position. 3. Insert a normal blank cassette tape (QZZCRA). 4. While pressing and holding down [REC( )] button, press [TAPE( )] button to pause the recording mode.
SA-AK350GCP 15 Voltage and Waveform Chart Note: Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
SA-AK350GCP 18 Notes Of Schematic Diagram (All schematic diagrams may be modified at any time with : CD Signal line the development of new technology) : Main Signal line Notes: S971: Mode switch. : FM/AM Signal line S972: Half switch.
SA-AK350GCP 22 Terminal Function of IC's 22.1. IC7001 (MN6627954MA) Servo Processor,Digital Signal Processor/Digital filter and D/A Converter Pin No. Mark Function Pin No. Mark Function DRAM address signal O/P 11 DSLF Loop Filter Terminal (For DSL) DRAM address signal O/P 9...
SA-AK350GCP 22.2. IC7002 (BA5948FPE2) IC 4CH Drive Pin No. Mark Function Pin No. Mark Function Motor Driver 92 Input Motor Drive (3) reverse - action output Turntable Motor Drive Signal (“L”:ON) Motor Drive (3) forward - action output Motor Drive (1) Input...
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SA-AK350GCP Pin No. Mark Function MDATA_OUT CD Command Data Output MCLK CD Command Clock Output /RESET_SW CD Limit Switch Input for the most Inner Point (Active Low) HOME_SW Home Switch for CRS1 CD_RST CD Reset output CLOSE_SW CLOSE switch for CRS1...
SA-AK350GCP 24 Replacement Parts List Notes: · Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used. When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks RMC0061 PACK SPRING Q1316 2SD09650RA TRANSISTOR RXF0061-1 FLYWHEEL F ASS’Y Q1317 B1ABGC000005 TRANSISTOR RXG0040 FF RELAY GEAR ASS’Y Q2142 B1ABCF000176 TRANSISTOR...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks D5104 B0BA01100004 DIODE S6306 EVQ21405RJ SW REC D5105 B0BA02400029 DIODE S6307 EVQ21405RJ SW M.EQ+ D5107 B0BA01500003 DIODE S6308 EVQ21405RJ SW MANUAL EQ...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks LB7264 D0GBR00JA008 CHIP JUMPER W584 ERJ3GEY0R00V CHIP JUMPER W586 ERJ3GEY0R00V CHIP JUMPER T5950 G4CYAYY00135 MAIN TRANSFORMER W587 ERJ3GEY0R00V CHIP JUMPER T5951...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks W659 ERJ6GEY0R00V CHIP JUMPER W7017 D0GBR00JA008 CHIP JUMPER W660 ERJ6GEY0R00V CHIP JUMPER W7018 D0GBR00JA008 CHIP JUMPER W661 ERJ6GEY0R00V CHIP JUMPER W7019...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R1207 D0GB102JA008 1K 1/16W R2248 D0GB682JA008 6.8K 1/16W R1209 D0GB102JA008 1K 1/16W R2249 D0GB332JA007 3.3K 1/16W R1210 D0GB333JA008 33K 1/16W R2251...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2507 D0GB104JA007 100K 1/16W R2924 D0GB102JA008 1K 1/16W R2508 D0GB102JA008 1K 1/16W R2927 D0GB102JA008 1K 1/16W R2509 D0GB561JA007 560 1/16W R2936...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R5202 D0GB104JA007 100K 1/16W R6491 D0GB223JA041 22K 1/16W R5203 D0GB103JA008 10K 1/16W R6492 D0GB123JA008 12K 1/16W R5204 D0GB104JA007 100K 1/16W R6493...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C953 F2A0J101A245 100 6.3V C2221 F1H1H332A013 3300P 50V C1101 F2A1H1R0A145 1 50V C2222 ECJ1VB1C105K 1 16V C1102 F1H1H471A219 470P 50V C2232...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2805 F2A1C471A236 470 16V C5186 ECJ1VB1H104K 0.1 50V C2806 F1H1H100A230 10P 50V C5187 ECJ1VB1H104K 0.1 50V C2821 ECJ1VC1H101K 100P 50V C5201...
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SA-AK350GCP Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C5429 D0GBR00JA008 0 1/16W C7226 F1H1H102A219 1000P 50V C5430 F1H2A221A009 220P 100V C7227 ECA1HAK010XI 1 50V C5431 F1H2A221A009 220P 100V C7228...