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ORDER NO. MD0101010C3 CD Stereo System SA-AK52 Colour (S)... Silver Type Area (GC)...Asia, Latin America, Africa and Middle Near East TAPE SECTION : AR2 MECHANISM SERIES CD SECTION : RAE0152Z-3 TRAVERSE DECK SERIES Specifications AMPLIFIER SECTION 3.200 - 7.350 MHz (0.005 MHz...
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Mass 9.0 kg Beam source/wave length Semiconductor laser/780 nm SYSTEM Number of channels Stereo SC-AK52(GC) Music Center: SA-AK52(GC) Frequency response 20 Hz - 20 kHz (+1, -2 dB) Speaker: SB-AK52(GC) Wow and flutter Below measurable limit Notes: Digital filter 8 fs 1.
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SA-AK52 1 Before Use Be sure to disconnect the mains cord before adjusting the voltage selector. Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will be used.
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SA-AK52 5 Handling Precautions For Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
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SA-AK52 6 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.
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SA-AK52 8 Operation Checks and Main Component Replacement Procedures “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.
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SA-AK52 8.1. Disassembly and assembly main unit Step 1 Remove 3 screws each side and 5 screws at rear panel. Step 2 Remove the Top Cabinet Step 3 Remove T-bracket. Step 4 Remove 2 screws each side of the inner chassis and a screw at the rear panel.
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SA-AK52 Step 4 : Remove the CD lid in the direction of the arrow. Step 5 : Release the two catches shown above to remove the Step 1 : Use a hexagonal wrench and turn clockwise to release front cabinet from the CD Traverse Unit.
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SA-AK52 Step 7 Remove 2 screws from bottom and 2 screw beside Step 8 To release inner bracket, remove 4 screws. inner bracket to push forward to release the front panel. 8.1.1. Checking for Panel, Main and Deck P.C.B. Step 1 Remove 2 screws each side.
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SA-AK52 8.1.2. Checking for Power P.C.B. 8.1.3. For Live Troubleshooting Procedure Step 6 : Reconnect all connectors. Step 7 : Use extension 14pin FFC wire for CN309. Step 8 : Supply power for troubleshooting.
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SA-AK52 8.2. Main Component Replacement Procedures 8.2.1. Replacement of the Traverse Deck Step 1 Follow the procedures in ‘Disassembly of the Traverse Unit’ ( Step 1 - Step 4 ). Step 5 Remove the flexible cable CN701. Step 3 Desolder the 4 legs of the 2 motors and pull out the •...
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SA-AK52 Note: Before installing the CD servo P.C.B., move the optical pickup towards the outer edge from the marking (black triangle). [Otherwise, the reset detect switch (S701) mounted on the CD servo P.C.B. may be damaged.] 8.2.2. Replacement of the Power Amplifier IC Step 1 Follow the procedures in ‘Checking Procedure for each...
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SA-AK52 8.3. Disassembly and assembly of the Traverse Unit Step 1 Push the lever from position A to B. Step 2 Pull the stopper (black) in the direction of arrow 1 and push the lever in the direction of arrow 2.
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SA-AK52 8.4. Disassembly and assembly of the Disc Tray (clockwise), and then open the disc tray fully. Step 2 With lifting the claw in the direction of arrow 1, draw the Step 6 Upset the CD changer unit again. clamp SW P.C.B. in the direction of arrow 2.
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SA-AK52 Step 1 Slide the drive rack fully in the direction of the arrow. Step 4 Holding the disc tray manually, rotate the pulley gear in the direction of arrow. Step 5 Rotate the gear 5 or 6 times manually, and then push the disc tray.
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SA-AK52 9 Self-Diagnostic Function 9.1. Self-diagnostic display This unit is equipped with a self-diagnostic display function which, if a problem occurs, will display an error code corresponding to the problem. Use this function when performing maintenance on the unit. 9.2.
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SA-AK52 7. Press “ /TUNE MODE” to indicate Error Code. • If several problem exist, error code will change each time when “ /TUNE MODE” is pressed. (e.g. F15 → F26 → F16 ..etc). 9.5. To clear all Error code 1.
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SA-AK52 11 CD Test Mode Function This CD test mode is provided to check CD unit without 11.2. CD Automatically Adjustment connecting to changer loading mechanism. This mode shall result indication operate CD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.
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SA-AK52 12.1.3. Bias and Erase Voltage Check 1. Set the unit “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and the unit to “REC” mode (use “ REC/STOP” key). 3. Measure and make sure that the output is within the standard value.
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SA-AK52 12.2.2. AM-RF Alignment SIGNAL GENERATOR OR SWEEP RADIO DIAL SETTING INDICATOR ADJUSTMENT REMARKS GENERATOR (ELECTRONIC (Shown in Fig.3) VOLTMETER CONNECTIONS FREQUENCY OSCILLOSCOPE) Fashion a loop of 522 kHz Tuning capacitor fully closed Headphones Jack (32Ω) Z152 (GC), Adjust for maximum output.
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SA-AK52 14 Terminal Function of ICs 14.1. IC701 (AN8885SBE1) Servo Amplifier Pin No. Mark Function Pin No. Mark Function Tracking signal input 1 /RFDET NRFDET output (“L” : detection) Tracking signal input 2 PDOWN Power-down input Power supply OFTR OFTR output Focus signal input terminal 1 N.C.
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SA-AK52 Mark Function Mark Function EFM signal output CLVS Spindle servo phase synchronizing signal output PLL extraction clock output ("H" : CLV, "L" : rough servo) (fPCK = 4.321 MHz during normal playback) Sub-code checked output (“H” :OK, “L” :NG) VCOF2 VCO Loop filter for 33.8688...
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SA-AK52 Pin No. Mark Function CNVSS Flash mode terminal (connect to ground) /RESET RESET input XCOUT 32.768 kHz sub clock XCIN 32.768 kHz sub clock Ground (0V) 4.19 MHz main clock XOUT 4.19 MHz main clock Power supply (+5V) MBP1...
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SA-AK52 SIGNAL LINES MAIN SIGNAL LINE CD SIGNAL LINE AM SIGNAL LINE PLAYBACK SIGNAL LINE H_OUT_L(R) FM OSC SIGNAL LINE AM OSC SIGNAL LINE FM & AM SIGNALS LINE RECORDING SIGNAL LINE FM SIGNAL LINE AUX SIGNAL LINE HP_L(R) IC500...
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SA-AK52 16 Schematic Diagram (All schematic diagrams may be modified at any time with the S944 3D AI EQ switch development of the new technology) S945 Super sound EQ switch S950 Disc 2 switch Note: S951 Sub woofer switch S952...
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SA-AK52 SCHEMATIC DIAGRAM -1 : CD SIGNAL LINE : +B SIGNAL LINE : +B SIGNAL LINE CD SERVO CIRCUIT R701 OPTICAL PICKUP CIRCUIT Q701 C701 2SA1037AKSTX 6.3V33 3.2V C703 LASER POWER DRIVE LASER DIODE 6.3V100 Q701 CN701 2.7V ((2.3V)) 0.9V...
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SA-AK52 SCHEMATIC DIAGRAM - 2 : CD SIGNAL LINE : +B SIGNAL LINE : +B SIGNAL LINE R717 C727 50V1 C725 1000P R721 C726 1000P R718 C728 50V1 C731 6.3V220 CN702 Lch OUT C730 C733 C732 A.GND 6.3V220 C754 Rch OUT 470P +3.3V...
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SA-AK52 SCHEMATIC DIAGRAM - 3 : AM SIGNAL LINE : FM SIGNAL LINE : +B SIGNAL LINE : FM OSC SIGNAL LINE : AM OSC SIGNAL LINE MAIN/TUNER CIRCUIT Z120 (RAL0029) C103 0.01 2SC2786M R107 2SK544 FM MIXER C104 R106...
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SA-AK52 SCHEMATIC DIAGRAM - 4 : AM SIGNAL LINE : FM SIGNAL LINE : +B SIGNAL LINE : FM OSC SIGNAL LINE : AM OSC SIGNAL LINE : FM/AM SIGNAL LINE R104 CF202 R121 C120 16V10 C116 C138 0.033 0.01 13.6V...
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SA-AK52 SCHEMATIC DIAGRAM - 5 : +B SIGNAL LINE : MAIN SIGNAL LINE : FM/AM SIGNAL LINE : -B SIGNAL LINE : RECORD SIGNAL LINE : CD SIGNAL LINE PANEL CIRCUIT (CP605) ON SCHEMATIC DIAGRAM-9 MAIN CIRCUIT CN303 20 19 18 17 16 15 14 13 12 11 10...
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SA-AK52 SCHEMATIC DIAGRAM - 6 : -B SIGNAL LINE : MAIN SIGNAL LINE : +B SIGNAL LINE PANEL CIRCUIT (CP607) ON SCHEMATIC DIAGRAM-9 CN302 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 C375...
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SA-AK52 SCHEMATIC DIAGRAM - 7 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE (-29.86V)<-29.85V> (-44.1V)<-43.8V> -29.89V((-29.84V)) -43.9V((-42.9V)) RL1N4003S-P [-29.94V] [-44.2V] R332 D313 C359 R331 (-30.45V) 0.01 4.7K <-30.48V> Q308 -30.5V C360 ((-30.44V)) 63V100 CN301 [-30.55V] 2SB621ARSTA...
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SA-AK52 SCHEMATIC DIAGRAM - 7 : +B SIGNAL LINE : CD SIGNAL LINE : MAIN SIGNAL LINE PANEL CIRCUIT FL600 RSL0310-F C600 35V22 TACT SWITCH (1) CIRCUIT IC602 BU2090AF-E2 Z940 RCD37142TC5 IO EXP 2 REMOTE CONTROL SENSOR <0.45V> <0.13V> C941 (0.13V)
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SA-AK52 SCHEMATIC DIAGRAM - 8 DECK CIRCUIT : +B SIGNAL LINE : MAIN SIGNAL LINE (CN1001) ON SCHEMATIC DIAGRAM-10 : -B SIGNAL LINE : CD SIGNAL LINE H600 Q603 2SA933SSTA SWITCH C634 DECK +6V SUPPLY R651 R652 35V22 D613 L605...
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SA-AK52 SCHEMATIC DIAGRAM - 9 : +B SIGNAL LINE : PLAYBACK SIGNAL LINE : -B SIGNAL LINE : RECORD SIGNAL LINE DECK CIRCUIT R1055 2.2K R1098 C1038 220P R1017 8.2K CS1001 R1095 100K R1032 R1015 HEAD C1015 C1012 C1034 1000P...
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SA-AK52 SCHEMATIC DIAGRAM - 10 : +B SIGNAL LINE : PLAYBACK SIGNAL LINE : -B SIGNAL LINE : RECORD SIGNAL LINE MAIN CIRCUIT (CN304) ON SCHEMATIC DIAGRAM-4 H1001/W1001 10 9 R1072 R1077 R1074 C1057 C1058 C1060 50V3.3 R1069 4700P 6.8K...
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SA-AK52 SCHEMATIC DIAGRAM - 12 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE POWER CIRCUIT IC500 IC500 RSN309W44B POWER IC DISP -VCC +VCC -VCC +VCC L IN R IN -CIN +CIN RELAY HMUT +COUT -COUT AC IN...
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SA-AK52 17 Printed Circuit Board Note: Circuit board diagrams may be modified at any time with the development of new technology. CD SERVO P.C.B (REPX0192D) (RF) TP20 X701 TJ701 TP23 C717 R714 TP19 TP21 TP29 C716 C721 R709 C744 TP24...
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SA-AK52 20 Parts Location and 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.
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SA-AK52 20.1.2. Deck Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks CASSETTE DECK RED0050 R/P HEAD BLOCK UNIT 101-1 RHE5152ZB SCREW RED0051 P/B HEAD BLOCK UNIT 102-1 RHE5152ZB SCREW RDG0300 REEL BASE GEAR RDG0301 WINDING RELAY GEAR...
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SA-AK52 20.2. CD Loading Mechanism (RD-DAC026-S) 20.2.1. CD Loading Mechanism Parts Location...
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SA-AK52 20.2.2. CD Loading Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks TRAVERSE DECK XTN2+6G SCREW RMX0141 PUSH SPACER RML0517 TIMING LEVER RMQ0749 UPPER SPINDLE RML0516 PLUNGER LEVER...
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SA-AK52 20.3. Cabinet 20.3.1. Cabinet Parts Location...
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SA-AK52 20.3.2. Cabinet Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RKWX0156A-1 FL FILTER RMBX0016-1 CASS. OPEN SPRING REEX0129 14P FFC RMKX0043 BOTTOM CHASSIS REEX0101-1...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks Q307 KRC111STA TRANSISTOR D316 RL1N4003S-P DIODE Q308 2SB621ARSTA TRANSISTOR D318 UDZSTE177R5B DIODE Q309 KTA1504GRTA TRANSISTOR D319 MA728TX DIODE Q310 KTC3875GRTA TRANSISTOR...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks D1003 1SS355TE17 DIODE CN900 RJT066H12F 12P BTB CONNECTOR D1004 UDZTE173R6B DIODE CN1001 RJS8T7ZA 8P MOLEX VARIABLE RESISTORS CP500 RJT057G12 12P P2 MQ CONNECTOR...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks EYF52BC FUSE HOLDER R104 ERJ3GEYJ102V 1K 1/16W EYF52BC FUSE HOLDER R105 ERJ3GEYJ471V 470 1/16W EYF52BC FUSE HOLDER R106 ERJ3GEYJ474V 470K 1/16W...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R225 ERJ3GEYJ392V 3.9K 1/16W R401 ERJ3GEYJ272V 2.7K 1/16W R226 ERJ3GEYJ121V 120 1/16W R402 ERJ3GEYJ103V 10K 1/16W R227 ERJ3GEY0R00V 0 1/16W R407 ERJ3GEYJ152V 1.5K 1/16W...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R583 RSFMB40KT-L FUSE PROTECTOR R676 ERDS2TJ472T 4.7K 1/4W R600 ERDS2TJ472T 4.7K 1/4W R677 ERDS2TJ681T 680 1/4W R601 ERDS2TJ472T 4.7K 1/4W R678...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R931 ERDS2TJ334T 330K 1/4W R1047 ERJ3GEYJ102V 1K 1/16W R932 ERDS2TJ822T 8.2K 1/4W R1048 ERJ3GEYJ102V 1K 1/16W R933 ERDS2TJ334T 330K 1/4W R1049...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C107 ECUV1H472KBV 4700P 50V C310 ECUV1C473KBV 0.047 16V C109 ECUV1H102KBV 1000P 50V C311 ECEA1HKAR33B 0.33 50V C110 ECUV1H103KBV 0.01 50V C312 ECEA1HKAR15B 0.15 50V...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C434 ECEA1HKA4R7B 4.7 50V C629 ECBT1H561KB5 560P 50V C435 ECEA1HKA2R2B 2.2 50V C630 ECBT1H561KB5 560P 50V C436 ECEA1HKA2R2B 2.2 50V C631 ECBT1E103ZF5 0.01 25V...
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SA-AK52 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C919 ECBT1H101KB5 100P 50V C920 ECBT1E223ZF5 0.022 25V CHIP JUMPER C921 ECBT1E223ZF5 0.022 25V C930 ECBT1E223ZF5 0.022 25V RJ701 ERJ6GEY0R00V 0 1/10W...
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SA-AK52 20.5. Packing Materials & Accessories Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks PACKING MATERIALS N2QAGB000004 REMOTE CONTROLLER A1-1 RKK-HTR0280 R/C BATTERY COVER RPGX0706 PACKING CASE RJA0019-2K...