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6 Service Mode 6.1. Cold Start 6.2. Doctor Mode Table 6.3. Self-Diagnostic Mode 6.4. Self-Diagnostic Error Code Table 6.5. Sales Demonstration Lock Function 7 Troubleshooting Guide 8 Disassembly and Assembly Instructions 8.1. Type of Screws 8.2. Disassembly Flow Chart 8.3. Main Components and P.C.B. Locations 8.4.
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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.
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1.3. 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. • 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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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.
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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).
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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.
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3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable. 4. The antistatic FFC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi- ble cable, cut off the antistatic FFC.
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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.
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4 Specifications General Power supply AC 127 V, 60 Hz Amplifier section RMS output power stereo mode Power consumption 55 W Front Ch (both ch driven) 175 W per channel (4 Ω), 1 kHz, 30% THD l a t Dimensions (W x H x D) 220 mm x 334 mm x 250 mm PMPO Output Power 3900 W...
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5 Location of Controls and Components 5.1. Remote Control Key Button Operation...
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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.
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6.2.2. 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...
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6.3. 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 [g] button follow by [y/i] on main unit for 2 seconds.
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6.4.2. CD Mechanism Error Code Table Item Key Operation FL Display Mode Name Description Front Key Error Code Diagnosis Contents: Press [g] 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.
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7 Troubleshooting Guide “Contents for this section is not available at time of issue”...
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8 Disassembly and Assembly Instructions 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) •...
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8.2. Disassembly Flow Chart 8.4 Top Cabinet 8.6 Panel P.C.B. and 8.10 Main P.C.B. LCD P.C.B. 8.7 Remote Sensor P.C.B. 8.8 USB P.C.B. 8.12 CD Mechanism Unit 8.13 CD Interface P.C.B.
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8.3. Main Components and P.C.B. Locations...
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8.4. Disassembly of Top Cabinet Step 4 Slightly lift up to remove Top Cabinet. Step 1 Remove 2 screws on each side. Step 2 Remove 5 screws. Step 3 Release both sides of Top Cabinet as arrow shown.
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8.5. Disassembly of Front Panel Step 3 Release tabs on both sides of Front Panel Unit. Unit • Refer to “Disassembly of Top Cabinet”. Step 1 Detach 5P Wire at connector (CN2002) on Main P.C.B. Step 2 Detach 17P FFC at connector (CN2000) on Main P.C.B. Step 4 Release tabs at bottom of unit.
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8.6. Disassembly of Panel P.C.B. Step 5 Detach to remove Front Panel Unit and LCD P.C.B. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front Panel Unit”. Step 1 Remove Volume Knob. Step 2 Remove 5 screws.
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Step 3 Release catches in sequences (1-6). Step 5 Remove 2 screws. Step 6 Remove Panel P.C.B. and LCD P.C.B.. 8.7. Disassembly of Remote Sensor Step 4 Slightly lift up Panel P.C.B. P.C.B. • Refer to “Disassembly of Top Cabinet”. •...
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8.8. 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”. • Refer to “Disassembly of Panel P.C.B. and LCD P.C.B. Step 1 Remove 8 screws.
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Step 2 Lift up to detach Inner Chassis Unit. Step 3 Release tabs. Step 4 Remove Rear Panel. Step 2 Step 3...
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8.10. Disassembly of Main P.C.B. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Rear Panel”. Step 1 Detach 5P Wire at connector (CN2002) on Main P.C.B.. Step 2 Detach 17P FFC at connector (CN2000) on Main P.C.B..
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8.11. Disassembly of CD Mecha- Step 5 Remove screw. nism Unit • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front Panel Unit”. Step 1 Remove 7 screws. Step 5 Step 2 Detach 10P FFC at connector (CN8251) on Main P.C.B..
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8.12. Disassembly of CD Interface Step 6 Release catches. Step 7 Lift up to remove Inner Chassis Unit.. P.C.B. • Refer to “Disassembly of Top Cabinet”. Step 7 • Refer to “Disassembly of Front Panel Unit”. • Refer to “Disassembly of CD Mechanism Unit”. Step 1 Remove 2 screws.
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9 Service Position 9.2. Checking of Main P.C.B. and Note: For description of the disassembly procedures, see the Section 8. SMPS Module 9.1. Checking of Panel P.C.B. and Step 1 Remove Top Cabinet. LCD P.C.B. Step 2 Remove Front Panel Unit. Step 3 Remove Rear Panel.
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OPEN SW OPEN SW OPEN SW CD OPEN SW CN7001 CN7002 CN8251 CLOSE SW CLOSE SW CLOSE SW CD CLOSE SW CD INTERFACE P.C.B. NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX80LM SERVO & SYSTEM CONTROL (1/2) BLOCK DIAGRAM...
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CN2000 CN9000 VOL JOGB VOLUME VOL JOGB 81 PANEL P.C.B. DC DET AMP FAN DC DET1 40 DC DET AMP FAN FROM AUDIO NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX80LM SERVO & SYSTEM CONTROL (2/2) BLOCK DIAGRAM...
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TO SERVO & SYSTEM CONTROL DAP I2S BCKO 31 LRCLKO DAP I2S LRCKO DAP I2S LRCKO 30 SCLKO TU INT TU INT TU RST TU RST FROM/TO SERVO & SYSTEM CONTROL TU SCL TU SCL TU SDA TU SDA SA-AKX80LM AUDIO BLOCK DIAGRAM...
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CN1000* AM-BP AM-BP FROM/TO AM BP SERVO & SYSTEM CONTROL CN1000* SYNC SYNC SYNC CN1000* SMPS-ID SMPS-ID SMPS ID CN1000* TEMP DET TEMP DET TEMP DET NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX80LM POWER SUPPLY BLOCK DIAGRAM...
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11 Wiring Connection Diagram TO SMPS MODULE JK6000 CN9000 CN1000* TO SPEAKERS VR9000 JK6002 PANEL P.C.B. MAIN P.C.B. (SOLDER SIDE) (SIDE B) AUX IN CN2000 ZJ9001* JK51 FM ANT VOLUME CN9001 JK52 CN2002 AM ANT FP8201 CN8251 TO OPTICAL PICKUP UNIT (CD MECHANISM UNIT) M7302* (SPINDLE...
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12 Schematic Diagram 12.1. Schematic Diagram Notes • This schematic diagram may be modified at any time with the development of new technology. Notes: S7201: Reset switch S9000: USB switch. S9001: Power switch ( S9002: CD switch. S9003: Latin Preset EQ switch. S9004: Radio/EXT IN switch.
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PW_SYS_3R3V C2064 50V3.3 C2055 D2002 DZ2001 X2001 DA2J10100L DZ2J047M0L C2052 TU_SDA X2002 TU_SCL CD: MAIN (CD SERVO): SCHEMATIC DIAGRAM - 1 ~ 3 TU_RST DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 8 TO MAIN (MICON) CIRCUIT (3/4) SA-AKX80LM MAIN (MICON) CIRCUIT...
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SDOUT DAP_I2S_OUT C6509 C6530 C6528 IC6500 C1AB00003993 R2201...AKX80 DIGITAL AUDIO PROCESSOR DGND R2206...PN R2207...PS CD: MAIN (CD SERVO): SCHEMATIC DIAGRAM - 1 ~ 3 DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 8 TO MAIN (MICON) CIRCUIT (4/4) SA-AKX80LM MAIN (MICON) CIRCUIT...
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2.2K DAP_TUN_SDIN DOUT THERMAL RFGND JK52 0.47 AM ANT AM ANT AM ANT G2A380Y00002 4.7K 4.7K TU_SDA CD: MAIN (CD SERVO): SCHEMATIC DIAGRAM - 1 ~ 3 TU_SCL DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 8 TU_RST SA-AKX80LM MAIN (MICON) CIRCUIT...
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1000P 3300P +3.3V VOLTAGE REGULATOR R1016 DGND DGND CD DA CD: MAIN (CD SERVO): SCHEMATIC DIAGRAM - 1 ~ 3 DA: MAIN (DAMP): SCHEMATIC DIAGRAM - 8 NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX80LM MAIN (MICON) CIRCUIT...
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SWITCH 220K B1ADBL000010 DC DETECT C6068 R6055 Q6300 R6054 B1ABCF000011 SPEAKER PROTECTION SWITCH Q6001 B1ABCF000011 DC DETECT DC_DET_AMP_FAN MI: MAIN (MICON) SCHEMATIC DIAGRAM - 4 ~ 7 NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX80LM MAIN (DAMP) CIRCUIT...
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SEG14 DATA [34] SEG10 [1] /CS SEG13 R905 SEG13 [35] SEG9 [44] SEG0 SEG12 SEG12 SEG11 R903 SEG11 NOTE: “ * ” REF IS FOR INDICATION ONLY SA-AKX80LM PANEL / LCD / USB / REMOTE SENSOR / CD INTERFACE CIRCUIT...
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C8018 R8044 X8101 R8045 CN2002 AM ANT IC8251 C8515 TP64 CN8251 R2502 C8256 C8261 R8263 R8262 FP8201 (TO OPTICAL PICKUP UNIT (CD MECHANISM UNIT)) 3610B 3610B (SIDE B) NOTE: " * " REF IS FOR INDICATION ONLY. SA-AKX80LM MAIN P.C.B.
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ZJ9300* R9300 JK9300 ZJ9001* USB PORT S9001 (POWER) VOLUME CN9001 REMOTE SENSOR P.C.B. (RAIM15X803A) 3611AD-2 3611AD-2 3611AA-2 3611AA-2 CN9002 IR9000 SENSOR NOTE: " * " REF IS FOR INDICATION ONLY SA-AKX80LM PANEL / LCD / USB / REMOTE SENSOR P.C.B.
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13.4. CD Interface P.C.B. CD INTERFACE P.C.B. (REP4945A) M7302* (SPINDLE MOTOR) S7201 (RESET) CN7002 CN7001 M7301* TO LOADING P.C.B. (TRAVERSE (CD MECHANISM MOTOR) UNIT) 3556A 3556A NOTE: " * " REF IS FOR INDICATION ONLY SA-AKX80LM CD INTERFACE P.C.B.
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STANDBY IC2006 REF NO. MODE CD PLAY STANDBY IC2006 REF NO. MODE CD PLAY STANDBY IC2006 REF NO. MODE CD PLAY STANDBY IC2006 REF NO. MODE CD PLAY STANDBY IC2007 REF NO. MODE CD PLAY STANDBY SA-AKX80LM MAIN P.C.B .
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STANDBY IC6500 REF NO. MODE CD PLAY STANDBY IC7704 REF NO. MODE CD PLAY STANDBY IC7704 REF NO. MODE CD PLAY STANDBY IC7704 REF NO. MODE CD PLAY STANDBY IC8001 REF NO. MODE CD PLAY STANDBY SA-AKX80LM MAIN P.C.B .
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STANDBY IC8001 REF NO. MODE CD PLAY STANDBY IC8001 REF NO. MODE CD PLAY STANDBY IC8251 REF NO. MODE CD PLAY STANDBY IC8251 REF NO. MODE CD PLAY STANDBY IC8401 REF NO. MODE CD PLAY STANDBY SA-AKX80LM MAIN P.C.B .
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15.7 15.3 16.1 16.2 15.8 16.2 STANDBY 12.2 13.6 16.2 15.8 16.2 16.0 16.0 16.0 Q8201 REF NO. MODE CD PLAY STANDBY SA-AKX80LM MAIN P.C.B IC900 REF NO. MODE CD PLAY STANDBY IC900 REF NO. MODE CD PLAY STANDBY IC900 REF NO.
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15.1. Cabinet Parts Location 1 (PANEL P.C.B.) DP900 CN9001 *ZJ9001 CN9002 IR9000 (REMOTE SENSOR P.C.B.) (LCD P.C.B.) *ZJ6000 CN9000 VR9000 (USB P.C.B.) JK9300 *ZJ9300 SA-AKX80LM CABINET DRAWING NOTE: " * " PART IS NOT SUPPLIED / REF IS FOR INDICATION ONLY.
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JK6002 JK6000 *D-AMP HEATSINK UNIT JK51 CN8251 CN2002 (CD MECHANISM) (MAIN P.C.B.) CN2000 FP8201 *CN1000 (SMPS MODULE) CN7002 (CD INTERFACE P.C.B.) CN7001 S7201 SA-AKX80LM NOTE: " * " PART IS NOT SUPPLIED / REF IS FOR INDICATION ONLY. CABINET DRAWING...
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15.3. Packaging (SC-AKX80) ACCESSORIES BAG REMOTE CONTROL SA-AKX80LM AC CORD OI BOOK FM INDOOR ANTENNA AM LOOP ANTENNA SB-AKX16LM F R O N T POLYFOAM (TOP) SC-AKX80LM POLYFOAM (BOTTOM) PACKAGING DRAWING...
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15.4. Mechanical Replacement Part List Safety Ref. Part No. Part Name & Qty Remarks Description RMNX0298 PCB SPACER Safety Ref. Part No. Part Name & Qty Remarks Description RMQ2134 MECHA SUPPORT RSC1228 THERMAL PAD CABINET RMNX1011-W2 LCD HOLDER BASE CHASSIS RMNX1012A-W2 LCD HOLDER COVER RXRM0004...
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Safety Ref. Part No. Part Name & Qty Remarks Description PACKING MATERIALS RPG0R33 PACKING CASE RPNM0261B-1 POLYFOAM RPNM0261T-1 POLYFOAM RPFX0198-1 MIRAMAT SHEET ACCESSORIES N2QAYB000900 REMOTE CONTROL K2CB2CB00022 AC CORD RQTM0226 O/I BOOK (Sp) RSAX0002 INDOOR ANTENNA N1DYYYY00011 AM LOOP ANTENNA...
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15.5. Electrical Replacement Parts List Safety Ref. Part No. Part Name & Qty Remarks Description Safety Ref. Part No. Part Name & Qty Remarks IC8251 C0GBY0000117 (E.S.D) Description IC8401 RFKWFAKX80LM (E.S.D) JIGS PRINTED CIRCUIT & ADJ BOARDS TRANSISTORS PCB1 RD-DAK117-PX MAIN P.C.B.
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description VR9000 EVEKE2F3524B VOLUME JOG D0GBR00J0004 1/10W LB8003 D0GBR00J0004 1/10W LCD DISPLAY LB8201 D0GBR00J0004 1/10W LB8203 D0GBR00J0004 1/10W DP900 L5AYAYY00061 LCD DISPLAY LB8251 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 R908 D0GB102JA065 1/10W R2328 D0GBR00J0004 1/10W R933 D0GD181JA052 1/8W R2329 D0GBR00J0004 1/10W R935 D0GD181JA052 1/8W R2331 D0GB101JA065 1/10W R1004 ERJ3RBD752V 7.5K 1/16W R2332...
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description R6552 D0GB101JA065 1/10W R9013 D0GB472JA065 4.7K 1/10W R6553 D0GB101JA065 1/10W R9015 D0GB682JA065 6.8K 1/10W R6554 D0GB472JA065 4.7K 1/10W R9300 D0GBR00J0004 1/10W R8002 D0GB103JA065...
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Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description C6060 F1H1H104B047 0.1uF C8048 F1H1H104B047 0.1uF C6061 F1H1H103B047 0.01uF C8049 F1J1A106A043 10uF C6062 F1H1H103B047 0.01uF C8050 F1H1A105A113 C6063 F1H1H103B047 0.01uF C8058 F1G1A1040006 0.1uF...
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