1 Safety Precautions 1.1. General Guidelines 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards.
Power Supply using SMPS Module This model uses Switching Mode Power Supply (SMPS Module) to provide the power supply to the unit. Here is the supplied part no. for the SMPS Module 1) N0AB1GK00001 (For SA-AKX200LM) 2) N0AB1GL00001 (For SA-AKX400LM)
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1.4.1. For SA-AKX200LM Figure 1-3 1.4.2. For SA-AKX400LM Figure 1-4...
1.5. Safety Parts Information Safety Parts List: There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards.
2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD).
2.3. 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. The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin (Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that of the normal solder.
ble cable, cut off the antistatic FFC. Figure 2-2 2.5. Grounding for electrostatic breakdown prevention • As for parts that use optical pick-up (laser diode), the optical pick-up is destroyed by the static electricity of the working environ- ment. Repair in the working environment that is grounded. 2.5.1.
3 Service Navigation 3.1. Service Information This service manual contains technical information which will allow service personnel’s to understand and service this model. Please place orders using the parts list and not the drawing reference numbers. If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with original service manual.
4 Specifications Speaker section For AKX200 Amplifier section Type 2 way, 2 speaker system RMS output power stereo mode Speaker unit(s) Front Ch (both ch driven) 200 W per channel (4 Ω),1 kHz, 30% THD (for AKX200) Woofer 16 cm cone type 300 W per channel (3 Ω),1 kHz, 30% THD (for AKX400) Tweeter 6 cm cone type...
6 Service Mode 6.1. Cold-Start Item Key Operation FL Display Mode Name Description Front Key Cold Start To carry out cold-start or initialize 1. Unplug AC power cord. to shipping mode 2. Press & hold [POWER] button. 3. Plug in AC power cord while [POWER] button being pressed.
6.3. Doctor Mode Table 6.3.1. Doctor Mode Table 1 Item Key Operation FL Display Mode Name Description Front Key Doctor Mode 1. Press [ ] button on main unit follow by [4] and [7] on remote control. 2. To exit, press [DELETE] button on remote control or, press [POWER, /I] button on Main Unit...
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6.3.2. Doctor Mode Table 2 Item Key Operation FL Display Mode Name Description Front Key Volume Setting To check the volume setting of the In Doctor Mode: Check main unit. 1. Press [7], [8], [9] button on the remote control. Press [7]: VOL50 Volume Press [8]: VOL35...
6.4. Self-Diagnostic Mode Item Key Operation FL Display Mode Name Description Front Key Self Diagnostic To enter into self diagnostic checking Step 1: Select CD mode Mode (Ensure no disc is inserted). Step 2: Press & hold [ ] button follow by [ ] on main unit for 2 seconds.
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6.5.2. CD Mechanism Error Code Table Item Key Operation FL Display Mode Name Description Front Key Error Code Diagnosis Contents: Press [ ] on main unit for next CD H15 CD Open Abnormal error. During operation POS_SW_R On fail to be detected within 4 sec. Error No.
8 Disassembly and Assembly Instructions • Illustration is based on SA-AKX400LM. Caution Note: • This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo- nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service manual) •...
8.2. Disassembly Flow Chart Top Cabinet Front Panel Unit Rear Panel Main P.C.B. Panel P.C.B. SMPS Module USB P.C.B. Music Port P.C.B. (For AKX400) CD Mechanism Unit CD Interface P.C.B. 8.3. Main Components and P.C.B. Locations...
8.4. Disassembly of Top Cabinet Step 5 Slightly lift up to remove Top Cabinet. Step 1 Remove 2 screws. Step 2 Remove 2 screws. 8.5. Disassembly of Front Panel Unit • Refer to “Disassembly of Top Cabinet”. Step 1 Lift up Wire Clampers. Step 2 Detach 17P FFC at connector (CN2500) on Main P.C.B..
8.6. Disassembly of Panel P.C.B. Step 5 Release tabs at bottom of unit. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front Panel Unit”. Step 1 Remove Volume Knob. Step 2 Remove Multi Control Knob. Step 3 Remove 2 screws. Step 4 Release catches.
8.7. Disassembly of USB P.C.B. 8.9. Disassembly of Rear Panel • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front Panel Unit”. Step 1 Remove 7 screws. Step 1 Remove screw. Step 2 Release catch.
8.10. Disassembly of Main P.C.B. Step 4 Detach 9P Wire at connector (CON2) on SMPS Module. Step 5 Detach 17P FFC at connector (CN2500) on Main • Refer to “Disassembly of Top Cabinet”. P.C.B.. • Refer to “Disassembly of Rear Panel”. Step 6 Detach 9P Wire at connector (CN2503) on Main P.C.B..
8.11. Disassembly of SMPS Module 8.12. Disassembly of CD Mecha- nism Unit • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Rear Panel”. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front Panel Unit”. Step 1 Detach 9P Wire at connector (CON2) on SMPS Module.
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Step 5 Remove screw. Step 8 Remove 2 screws. Step 9 Remove CD Mechanism Unit. Step 6 Release catches. Step 7 Lift up to remove Inner Chassis Unit.
8.13. Disassembly of CD Interface P.C.B. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front Panel Unit”. • Refer to “Disassembly of CD Mechanism Unit”. Step 1 Remove 2 screws. Step 2 Desolder pins of the motor (M7301). Step 3 Desolder pins of the motor (M7302).
9 Service Position 9.2. Checking of SMPS Module Note: For description of the disassembly procedures, see the Section 8. Step 1 Remove Top Cabinet. 9.1. Checking of Panel P.C.B. and Step 2 Remove Rear Panel. Step 3 Remove SMPS Module. Main P.C.B.
BT PCONT BT PCONT 10 P5 TO SYSTEM CONTROL BLOCK (2/2) MPORT DET MPORT DET FROM/TO AUDIO ANAL_SEL ANAL_SEL FOR AKX400 IC2006 C0ZBZ0001747 I/O EXPANDER NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX200LM,SA-AKX400LM SYSTEM CONTROL (1/2) BLOCK DIAGRAM...
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POWER SUPPLY TO SYSTEM CONTROL DC DET PWR DC DET PWR QR2501 BLOCK (1/2) USB OVC USB OVC LED DRIVE NRST NRST USB A LED NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX200LM, SA-AKX400LM SYSTEM CONTROL (2/2) BLOCK DIAGRAM...
11 Wiring Connection Diagram TO SMPS MODULE CN1002 USB P.C.B. ZJ6402* CN2503 MAIN P.C.B. CN2500 CN2507 P2005 P2004 PANEL P.C.B. TO OPTICAL PICKUP UNIT (CD MECHANISM UNIT) MUSIC PORT P.C.B. (For AKX400) CN6001...AKX200 CN6300 CN6100...AKX400 CN7002 CD INTERFACE P.C.B. CN7001 TO CD LOADING P.C.B.
12 Schematic Diagram 12.1. Schematic Diagram Notes • This schematic diagram may be modified at any time with the development of new technology. Notes: S6200: Power switch ( S6201: Open/Close switch ( ). S6202: Stop ( ) switch. S6211: D.Bass switch. S6212: Album/Track switch.
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TU: MAIN (TUNER AUX): SCHEMATIC DIAGRAM - 5 FOR AKX400 DS: MAIN (DSP BLUETOOTH): SCHEMATIC DIAGRAM - 6 DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 7 SA-AKX200LM, SA-AKX400LM MAIN (MICON) CIRCUIT VR: MAIN (VOLTAGE REGULATOR): SCHEMATIC DIAGRAM - 8 ~ 9...
DS: MAIN (DSP BLUETOOTH): SCHEMATIC DIAGRAM - 6 DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 7 VR: MAIN (VOLTAGE REGULATOR): SCHEMATIC DIAGRAM - 8 ~ 9 NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX200LM, SA-AKX400LM MAIN (DSP BLUETOOTH) CIRCUIT...
RESET_SW MAIN (MICON) DGND CIRCUIT (P2004) OPEN_SW IN SCHEMATIC LDM- DIAGRAM - 2 S7201 LDM+ RESET TRV- TRV+ M7301* TRAVERSE MOTOR NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX200LM, SA-AKX400LM USB / CD INTERFACE / MUSIC PORT CIRCUIT...
USB PORT A USB PORT B (REC/PLAY) (PLAY) CN7002 CN7001 M7301* TO LOADING P.C.B. (TRAVERSE (CD MECHANISM SA-AKX200LM MOTOR) UNIT BRS11C) PANEL / USB P.C.B. 3556A 3556A NOTE: " * " REF IS FOR INDICATION ONLY SA-AKX200LM, SA-AKX400LM CD INTERFACE P.C.B.
14 Voltage and Waveform Measurement 14.1. Voltage Measurement Note: • Indication Voltage Values are in standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in voltage values, depending on the internal impedance of the DC circuit tester. •...
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14.1.2. Main P.C.B. (2/3) IC2001 REF NO. MODE CD PLAY STANDBY IC2001 REF NO. MODE CD PLAY STANDBY REF NO. IC2004 MODE CD PLAY STANDBY REF NO. IC2004 MODE CD PLAY STANDBY IC2005 REF NO. MODE POWER ON IC2006 REF NO. MODE CD PLAY STANDBY...
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14.1.3. Main P.C.B. (3/3) IC6000 (For SA-AKX200) REF NO. MODE CD PLAY 12.5 12.5 STANDBY 12.6 12.5 IC6000 (For SA-AKX200) REF NO. MODE CD PLAY 12.6 27.9 27.7 16.3 16.3 32.6 32.6 16.3 16.3 32.6 32.6 32.6 16.3 16.3 STANDBY 12.6 27.9 27.9 16.3 16.3 32.6 32.6 16.3...
15.3. Packaging (For SC-AKX200LM) ACCESSORIES BAG SA-AKX200LM REMOTE CONTROL **POLYFOAM AC CORD **CORRUGATED PAD OI BOOK FM INDOOR ANTENNA AM LOOP ANTENNA SB-AKX200LM F R O N T POLYFOAM (TOP FRONT) POLYFOAM (TOP REAR) POLYFOAM (BOTTOM) SC-AKX200LM NOTE: “**” PART IS NOT SUPPLIED.
15.4. Packaging (For SC-AKX400LM) ACCESSORIES BAG REMOTE CONTROL AC CORD SA-AKX400LM OI BOOK FM INDOOR ANTENNA AM LOOP ANTENNA SB-AKX400LM F R O N T POLYFOAM (TOP) SC-AKX400LM POLYFOAM (BOTTOM) PACKAGING DRAWING...
15.5. Mechanical Replacement Part List Safety Ref. Part No. Part Name & Qty Remarks Description Safety Ref. Part No. Part Name & Qty Remarks Description RGP1727-K FRONT PANEL AKX200 CABINET RGP1727A-K FRONT PANEL AKX400 CHASSIS 13-1 RKAX0042-K LEG CUSHION RGU2979-K UPPER FUNCTION AKX200...
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Safety Ref. Part No. Part Name & Qty Remarks Description RHD26046 SCREW AKX200 RHD26046 SCREW AKX400 RHD30007-K2JL SCREW RHD30111-31 SCREW RHD30119-SL SCREW RHDX031008 SCREW RMZX1022-1 PCB SPACER RSC1230 TUNER SHIELD RXA0270A TRANSFORMER AKX400 BRACKET UNIT RXA0270 TRANSFORMER AKX200 BRACKET UNIT RXK0874 INNER CHASSIS...
15.6. Electrical Replacement Parts List Safety Ref. Part No. Part Name & Qty Remarks Description Safety Ref. Part No. Part Name & Qty Remarks IC52 VUEALLPT087 (E.S.D) Description JIGS & ADJ PRINTED CIRCUIT IC1000 C0DBGYY03909 (E.S.D) BOARDS IC1002 C0DBAYY01594 (E.S.D) IC1003 C0DBAYY01594 (E.S.D)
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description IC6500 VUEALLPT090 (E.S.D) D6102 B3AAA0001129 DIODE (E.S.D) JIGS AKX400 & ADJ D6103 B3ABA0000905 DIODE (E.S.D) IC7001 C0DBGYY00969 (E.S.D) AKX400 D6104 B3ABA0000905 DIODE (E.S.D)
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description P2004 K1MN10A00011 10P CONNECTOR JACKS P2005 K1MY24A00001 24P CONNECTOR JK51 K4ZZ02000103 JK FM ANTENNA COILS AND INDUC- JK52 K4AC02B00042 JK AM ANTENNA TORS JK6000 K4AL04B00001...
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description W155 ERJ8GEY0R00V 1/4W AKX400 R2012 D0GA471JA023 1/16W W156 ERJ6GEY0R00V 1/8W AKX400 R2024 D0GA222JA023 2.2K 1/16W W157 ERJ3GEY0R00V 1/10W AKX400 R2026 D0GA102JA023 1/16W W158...
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description R2192 D0GAR00J0005 1/16W R6100 D0GB103JA065 1/10W AKX400 R2300 D0GAR00J0005 1/16W AKX400 R6101 D0GB472JA065 4.7K 1/10W AKX400 R2312 D0GBR00J0004 1/10W AKX200 R6101 D0GBR00J0004 1/10W...
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description R9014 D0GB183JA065 1/10W AKX200 C1055 F1H1H104B047 0.1uF R9031 D0GB123JA065 1/10W C2102 F1G1C104A146 0.1uF AKX400 R9039 D0GB123JA065 1/10W C2103 F1G1C104A146 0.1uF AKX400 R9040 D0GB223JA065...
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description C2183 F1G1H680A541 68pF C6113 F2A1C1010033 100uF AKX400 C2185 F2A0J101A208 100uF 6.3V C6318 F1H1H331B052 330pF AKX400 C2504 F1G1C104A146 0.1uF C6319 F1H1H331B052 330pF AKX400 C2505...