9 Troubleshooting Guide 10 Disassembly and Assembly Instructions 10.1. Screw Types 10.2. Disassembly Flow Chart 10.3. Main Components and P.C.B. Locations 10.4. Disassembly of Top Cabinet 10.5. Disassembly of Front Panel Unit 10.6. Disassembly of Panel P.C.B., LED P.C.B. and Music Port P.C.B.
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.
1.3. Before Repair and Adjustment Disconnect AC power to discharge unit AC Capacitors as such (C5700, C5701, C5703, C5704, C5705, C5706, C5707, C5708) through a 10 Ω, 10 W resistor to ground. Caution: DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
1.6. 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).
2.2. Precaution of Laser Diode Caution: This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens. Wavelength: 790 nm (CD) Maximum output radiation power from pickup: 100 µW/VDE Laser radiation from the pickup unit is safety level, but be sure the followings: 1.
2.3. Service caution based on Legal restrictions 2.3.1. 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. The normal solder is the alloy of tin (Sn) and lead (Pb).
2.4. Handling Precautions for Traverse Unit The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit. Cautions to Be Taken in Handling the Optical Pickup Unit 2.4.1.
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. Worktable grounding •...
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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3.1.1. Firmware Update Procedure Start Write encrypted UPD bin to CD-R Turn On main set Insert CD-R (with UPD bin) and close TOC reading "CHECKING" "NO PLAY" process end Writing starts: "0%" -> "20%" -> "40%" -> "60%" -> "80%" -> 100%" "GOOD"...
4 Specifications Grabación en USB Sección del amplificador Velocidad de bits 128 kbps Velocidad de grabación USB Potencia de salida RMS en modo estéreo 1x, 3x máx. (CD solamente) 250 W por canal (3 ), 1 kHz, 30% THD Frontal Alto Formato de archivo de grabación MP3 (*.mp3) Frontal Bajo 250 W por canal (3 ), 100 Hz, 30% THD...
7 Installation Instructions 7.1. Speaker and A/C Connection Cómo realizar las conexiones Conecte la antena interior FM. Coloque la antena donde la recepción sea la mejor. Conecte el cable de alimentación de sólo después de haber hecho todas las demás conexiones. Las ilustraciones mostradas son de SC-AKX76.
8 Service Mode 8.1. Cold-Start Here is the procedure to carry out cold-start or initialize to shipping mode. 1. Unplug AC power cord 2. Press & hold [POWER] button 3. Plug AC power cord while [POWER] button being pressed FL Display will show “_ _ _ _ _ _ _ _” 4.
8.2. Doctor Mode Table 8.2.1. Doctor Mode Table 1 Item Key Operation FL Display Mode Name Description Front Key Doctor Mode To enter into Doctor Mode In CD Mode: 1. Press [ ] button on main unit follow by [4] and [7] on remote control.
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8.2.2. 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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8.2.3. Doctor Mode Table 3 Item Key Operation FL Display Mode Name Description Front Key To display result of In Doctor Mode : Self- Adjustment self-adjustment for CD. 1. Press [10] [4] button Test on the remote control. Display of auto adjustment result Reference table: ERROR Code...
8.3. Reliability Test Mode (CD Mechanism Unit) Below is the process flow chart of the aging test for the CD Mechanism Unit . OPEN First Track Operation Access OPEN wait First Track for 1 s Play 5 s CLOSE Count up Last Track Operation Access...
8.4. 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.
8.5.2. CD Mechanism Error Code Table (CD Mechanism Unit) Error Code Diagnostic Contents Description of error Automatic FL Display Remarks CD H15 CD Open Abnormal During operation Press [ ] on main unit for POS_SW_R On fail to be next error. detected with 4 sec.
10 Disassembly and Assembly Instructions • Illustration is based on SA-AKX76PH-K. 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) •...
10.2. Disassembly Flow Chart 10.4.Top Cabinet 10.19. Fan Unit 10.5 Front Panel Unit 10.10. Rear Panel 10.6. Panel P.C.B., 10.12. SMPS P.C.B. and 10.11. Main P.C.B. LED P.C.B. and Music Port P.C.B. 10.7. Remote Sensor 10.13. CD Mechanism P.C.B. Unit 10.14.
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10.3. Main Components and P.C.B. Locations...
10.4. Disassembly of Top Cabinet Step 4 Slightly lift up the Top Cabinet in an outward direction as shown. Step 1 Remove 2 screws on each side. Step 5 Remove the Top Cabinet. Step 2 Remove 5 screws. Step 3 Slightly release both side of Top Cabinet outwards as arrow shown.
10.5. Disassembly of Front Panel Step 5 Release tab at the right side of the Front Panel Unit. Unit • Refer to “Disassembly of Top Cabinet”. Step 1 Detach 30P FFC at the connector (CN2004) on Main P.C.B.. Step 2 Detach 5P Cable at the connector (CN2001) on Main P.C.B..
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Step 7 Detach the Front Panel Unit as arrow shown. Step 3 Remove 7 screws. Step 4 Release catches by following the sequences (1-9). 10.6. Disassembly of Panel P.C.B., LED P.C.B. and Music Port P.C.B. • Refer to “Disassembly of Top Cabinet”. •...
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Step 5 Lift up the Panel P.C.B. and LED P.C.B. from the Front Caution: During assembling, ensure that the Panel P.C.B. is seated properly onto the locators & fully catched. Panel Unit. Caution: During assembling, ensure that the LED P.C.B. is properly insert to the Front Panel Unit.
Caution: During assembling, ensure that the Music Port 10.8. Disassembly of USB P.C.B. P.C.B. is seated properly into the locators & fully catched. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front Panel Unit”. Step 1 Remove 1 screw. Step 2 Release 1 catch.
10.9. Disassembly of CD Lid 10.10. 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 10 screws. Step 1 Remove the spring in order of sequence (1) to (3). Caution: During assembling, ensure that the spring is assembly at correct position.
Step 5 Lift up to remove Inner Chassis Unit from the Rear 10.11. Disassembly of Main P.C.B. Panel. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Front panel Unit”. Step 1 Detach 2P Wire at the connector (CN2007) on Main P.C.B..
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Step 4 Remove 2 screw. Step 6 Detach 10P FFC at the connector (FP8251) on the Main Step 5 Lift up the Main P.C.B.from the slots at the Inner Chas- P.C.B.. sis Unit according to arrow shown. Step 7 Detach 24P FFC at the connector (FP8201) on the Main P.C.B..
10.12. Disassembly of SMPS P.C.B. Step 5 Release the P.C.B. Holder.. Step 6 Remove the SMPS P.C.B.. Caution: During assembling, ensure that the SMPS P.C.B. is seated properly onto the locators. Refer to “Disassembly of Top Cabinet.”. Refer to “Disassembly of Front Panel Unit”. Step 1 Remove the screw.
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Step 4 Release 2 catches. Caution: During assembling, ensure that Inner Chassis Step 5 Lift up and remove the Inner Chassis Unit. Unit is catched onto Rear Panel properly. Step 6 Remove 2 screws. Step 7 Remove the CD Mechanism Unit.
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10.14. Disassembly of CD Interface 10.15. Disassembly of Fan Unit P.C.B. • Refer to “Disassembly of Top Cabinet”. • Refer to “Disassembly of Top Cabinet”. Step 1 Remove 1 screw. • Refer to “Disassembly of Front Panel Unit”. • Refer to “Disassembly of Main P.C.B.”. •...
11 Service Position Note: For description of the disassembly procedures, see 11.3. Checking of Main P.C.B. (Side the Section 10. 11.1. Checking of Panel P.C.B. Step 1 Remove Top Cabinet. Step 1 Remove Top Cabinet. Step 2 Remove Front Panel Unit. Step 2 Remove Front Panel Unit.
Step 7 Attach 10P FFC at the connector (FP8251) on the Main 11.4. Checking of SMPS P.C.B. P.C.B.. Step 1 Remove Top Cabinet. Step 8 Attch 24P FFC at the connector (FP8201) on the Main Step 2 Remove Front Panel Unit. P.C.B..
14 Schematic Diagram Voltage and signal line : +B signal line : -B signal line 14.1. Schematic Diagram Notes : CD Audio input signal line : Tuner/Music Port/AUX Audio input signal line This schematic diagram may be modified at any time : Audio output signal line with the development of new technology.
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PAVCCZ Oracle report PISTA MAIN CON COMPONENTES Ref. No. Part No. Name & Description RD-DAK114-PX PISTA MAIN COMPLETA PARA CENTROS DE SERVICIO REP4882R AKX76 MAIN BLOCK ZA101 RMZX1022-1 DAMP HEATSINK SPACER ZA102 RMZX1022-1 DAMP HEATSINK SPACER ZA103 RMZX1022-1 DAMP HEATSINK SPACER ZA104 RMZX1022-1 DAMP HEATSINK SPACER...
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PAVCCZ Oracle report Ref. No. Part No. Name & Description R2669 D0GB223JA008 CHIP RESISTOR Surface mounting fixed metal glaze film ( thick film ) resistors , R2157 D0GB123JA008 rectangular type Surface mounting fixed metal glaze film ( thick film ) resistors , R2161 D0GB123JA008 rectangular type...
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PAVCCZ Oracle report Ref. No. Part No. Name & Description SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2074 F1H1H104B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2075 F1H1H104B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2076 F1H1H104B047 RECTANGULAR TYPE (1608 TYPE)
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PAVCCZ Oracle report Ref. No. Part No. Name & Description SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2604 F1J1H2240017 RECTANGULAR TYPE (2125 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2607 F1J1H2240017 RECTANGULAR TYPE (2125 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2608 F1J1H2240017 RECTANGULAR TYPE (2125 TYPE)
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PAVCCZ Oracle report Ref. No. Part No. Name & Description SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2571 F1K1H105A138 RECTANGULAR TYPE (3216 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2572 F1K1H105A138 RECTANGULAR TYPE (3216 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2706 F1K1H105A138 RECTANGULAR TYPE (3216 TYPE)
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PAVCCZ Oracle report Ref. No. Part No. Name & Description C8252 F1H1H103A885 Electrical Part C8403 F1H1H103A885 Electrical Part SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2067 F1H1H103B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2103 F1H1H103B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C3215 F1H1H103B047...
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PAVCCZ Oracle report Ref. No. Part No. Name & Description SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2715 F1H1H104B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2716 F1H1H104B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2723 F1H1H104B047 RECTANGULAR TYPE (1608 TYPE)
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PAVCCZ Oracle report Ref. No. Part No. Name & Description SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C2063 F1H1H473B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C3200 F1H1H473B047 RECTANGULAR TYPE (1608 TYPE) SURFACE MOUNTING MULTILAYER CERAMIC CAPACITORS , C3201 F1H1H473B047 RECTANGULAR TYPE (1608 TYPE)
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PAVCCZ Oracle report Ref. No. Part No. Name & Description RPQ3164 LAYER PAD RPU0211 PARTITION PAD ASSY RPQ3165 PARTITION PAD A RPQ3166 PARTITION PAD B Z-TP-G72A1 Z_BLOCK Z-TP-N12 Z_BLOCK Strana 20 / Lista main 76.xls...
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POWER ON 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 POWER ON STANDBY IC2008 REF NO. MODE CD PLAY STANDBY SA-AKX76LM-K MAIN P.C.B...
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11.8 29.0 29.0 18.1 18.1 37.4 37.4 37.4 18.0 18.1 37.4 37.4 37.4 18.1 18.1 IC2501 REF NO. MODE CD PLAY 29.0 29.0 STANDBY 29.0 29.0 IC2502 REF NO. MODE CD PLAY 11.7 11.7 STANDBY 11.7 11.7 SA-AKX76LM-K MAIN P.C.B...
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29.0 29.0 IC8001 REF NO. MODE CD PLAY STANDBY IC8001 REF NO. MODE CD PLAY STANDBY IC8001 REF NO. MODE CD PLAY STANDBY IC8001 REF NO. MODE CD PLAY STANDBY IC8001 REF NO. MODE CD PLAY STANDBY SA-AKX76LM-K MAIN P.C.B...
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CD PLAY STANDBY IC8051 REF NO. MODE CD PLAY STANDBY REF NO. IC8251 MODE CD PLAY STANDBY IC8251 REF NO. MODE CD PLAY STANDBY IC8401 REF NO. MODE CD PLAY STANDBY REF NO. IC8501 MODE CD PLAY STANDBY SA-AKX76LM-K MAIN P.C.B...
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17.1.3. Mechanical Replacement Part List Safety Ref. Part No. Part Name & Qty Remarks Safety Ref. Part No. Part Name & Qty Remarks Description Description RHD26046 SCREW RHD30007-K2J SCREW CABINET RHD30111-31 SCREW CHASSIS RHD30119-S SCREW RHDX031008 SCREW L6FALEFH0030 FAN UNIT RMNV0079-1 FL HOLDER REE1730...
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Safety Ref. Part No. Part Name & Qty Remarks Description RGQ0744-W VOLUME LIGHT SHEET RKW1025-QL FL WINDOW RGU2848-KL POWER BUTTON RHDX30005-J SCREW REXX1159-1 WIRE (MUSIC PORT INNER CHASSIS) RGC0050-WL VOLUME LIGHT REFLECTOR RMZ1362 INSULATION SHEET RMZ1363 INSULATION TUBE TRAVERSE DECK RD-DDL106-PX BRS1.1C LOADER UN RAE1036Z-V...
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17.2. Electrical Replacement Part List...
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Safety Ref. No. Part No. Name & Dscription Safety Ref. No. Part No. Name & Dscription RD-DAK114-PX RD MAIN PISTA COMPLETA PARA C DE SERV. D5728 DA2J10100L DIODE RAIM13X760A CONJUNTO SMPS 76 Pista completa para C de S. D5725 DZ2J062M0L DIODO RAIM13X763A CONJUNTO PANEL 76 Psta completa para C de S.