ORDER NO. MD0101009C1 CD Stereo System SA-AK22 Colour (S)... Silver Type Area (P)... U.S.A. (PC)... Canada TAPE SECTION : SG2 MECHANISM SERIES CD SECTION : RAE0152Z-3 TRAVERSE DECK SERIES Specifications AMPLIFIER SECTION CASSETTE DECK SECTION Power output Track system 4 track, 2 channel...
SA-AK22 D/A converter MASH (1 bit DAC) SC-AK22(P) Music Center: SA-AK22(P) GENERAL Speaker: SB-AK22(P) Power supply AC 120 V, 60Hz SC-AK22(PC) Music Center: SA-AK22(PC) Power consumption 155 W Speaker: SB-AK22(P) Dimensions (W x H x D) 250 x 332 x 316 mm Notes: 9 27/32”...
SA-AK22 1 Safety Precaution (This “Safety Precaution” is applied only in U.S.A.) 1. Before servicing, unplug the power cord to prevent an electric shock. 2. When replacing parts, use only manufacturer’s recommended components for safety. 3. Check the condition of the power cord. Replace if wear or damage is evident.
SA-AK22 2 Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C536, C545 and C546 through a 10Ω, 5W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
SA-AK22 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).
SA-AK22 6 Precaution of Laser Diode CAUTION: This unit utilizes a class 1 laser. Invisible laser radiation is emitted from the optical pickup lens. When the unit is turned on: 1. Do not look directly into the pick up lens.
SA-AK22 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-AK22 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-AK22 Remove Front Panel Step 4 : Remove the CD lid in the direction of the arrow. Step 5 : Release the two catches shown above to remove the front cabinet from the CD Traverse Unit. Step 1 : Use a hexagonal wrench and turn clockwise to release the tray.
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SA-AK22 Step 7 Remove 2 screws from bottom and 2 screw beside inner bracket to push forward to release the front panel. Removal of Inner bracket. Step 8 To release inner bracket, remove 4 screws. 8.1.1. Checking for Panel, Main and Deck P.C.B.
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SA-AK22 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-AK22 8.2. Main Component Replacement Procedures 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 CN 701. • Removal of the flexible cable. Push the top of the connector...
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SA-AK22 Step6 Unsolder the terminals of Power Amp IC and replace the respective component. 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.
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SA-AK22 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-AK22 8.4. Disassembly and assembly of the Disc Tray Step 5 Rotate the hexagonal wrench in the direction of arrow (clockwise), and then open the disc tray fully. Step 2 With lifting the claw in the direction of arrow 1, draw the clamp SW P.C.B.
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SA-AK22 Step 1 Slide the drive rack fully in the direction of 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.
SA-AK22 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.
SA-AK22 9.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29, H15) 1. Press “CD”. 2. Press “OPEN/CLOSE (1)” and place a CD. 3. Press “OPEN/CLOSE (1)” to close the tray. 4. Press “OPEN/CLOSE (5)” and wait until the tray is open.
SA-AK22 10.3. Power Supply related error detection Error Error Problem condition Display POWER AMP When POWER is switched on, power become off automatically. output abnormal During normal operation, if DC DET become L, PCNT shall become L and the error display on the left shall be displayed. (IC501) 11 CD Test Mode Function This CD test mode is provided to check CD unit without connecting to changer loading mechanism.
SA-AK22 4. After alignment, assure that the output frequency of the DECK 1 FWD are within ±60 Hz of the value of the output frequency of DECK 2 FWD. 12.1.3. Bias Frequency Adjustment (Deck 1/2) 12.1.2. Bias and Erase Voltage Check 1.
SA-AK22 14 Terminal Function of IC’s 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-AK22 Pin No. Mark Function Pin No. 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-AK22 Pin No. Mark Function 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 MPU beat proof output 1 MBP2 MPU beat proof output 2...
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SA-AK22 FILTER FILTER H_OUT_L(R) (10) (13) (14) IC302 M5218AP Q400(Q200) (31) BUFFER MUTING OUTL(R) 45(46) INLC(R) HP_L(R) 51(52) RECL(R) IC301 43(44) INLB(R) BH3874AKS2 AUDIO SOUND PROCESSOR 47(48) INLD(R) JK305 Q450 (Q250) MUTING FROM CD UNIT SWITCH 41(42) CD SIGNAL INLA(R)
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SA-AK22 SIGNAL LINES MAIN SIGNAL LINE CD SIGNAL LINE AM SIGNAL LINE PLAYBACK SIGNAL LINE FM OSC SIGNAL LINE AM OSC SIGNAL LINE FM & AM SIGNALS LINE RECORDING SIGNAL LINE FM SIGNAL LINE IC500 RSN3502C POWER IC 11(13) 10(14)
SA-AK22 16 Schematic Diagram (All schematic diagrams may be modified at any time with the Accordingly, there may arise some error in voltage values development of the new technology) and waveforms depending upon the internal impedance of the tester or the measuring unit.
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SA-AK22 SCHEMATIC DIAGRAM -1 : +B SIGNAL LINE : +B SIGNAL LINE : CD 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-AK22 SCHEMATIC DIAGRAM - 2 : +B SIGNAL LINE : +B SIGNAL LINE : CD SIGNAL LINE R717 C727 50V1 C725 1000P R721 C726 1000P R718 C728 50V1 C731 6.3V220 CN702 Lch OUT C730 C732 C733 A.GND 6.3V220 C754 Rch OUT 470P +3.3V...
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SA-AK22 SCHEMATIC DIAGRAM - 3 : +B SIGNAL LINE : FM SIGNAL LINE : AM SIGNAL LINE : +B SIGNAL LINE : FM OSC SIGNAL LINE : AM OSC SIGNAL LINE : FM/AM SIGNAL LINE MAIN/TUNER CIRCUIT Q106 KRA102MTA POWER SUPPLY CONTROL...
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SA-AK22 SCHEMATIC DIAGRAM - 4 : +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-8 MAIN CIRCUIT CN303 20 19 18 17 16 15 14 13 12 11 10...
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SA-AK22 SCHEMATIC DIAGRAM - 5 : -B SIGNAL LINE : +B SIGNAL LINE : MAIN SIGNAL LINE PANEL CIRCUIT (CP607) ON SCHEMATIC DIAGRAM-8 CN302 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 C375...
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SA-AK22 SCHEMATIC DIAGRAM - 6 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE (-30.47V)<-30.44V> (-46.9V)<-46.6V> -30.45V((-30.37V)) -46.7V((-45.9V)) RL1N4003S-P [-30.47V] [-47.1V] R332 D313 R331 C359 (-31.05V) 4.7K 0.01 <-31.03V> Q308 C360 -31.03V ((-30.97V)) 63V100 2SB621ARSTA [-31.05V] CN301...
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SA-AK22 SCHEMATIC DIAGRAM - 7 : +B SIGNAL LINE : MAIN SIGNAL LINE : CD SIGNAL LINE PANEL CIRCUIT FL600 RSL0314-F C600 35V22 TACT SWITCH (1) CIRCUIT Z940 RCD37142TC5 REMOTE CONTROL SENSOR C941 0.01 C940 1000P D949 SLR325DCT31w R949 D949...
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SA-AK22 SCHEMATIC DIAGRAM - 8 : +B SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE : CD SIGNAL LINE DECK CIRCUIT (CN1001) ON SCHEMATIC DIAGRAM-10 H600 Q603 2SA933SSTA SWITCH C634 DECK +6V SUPPLY R651 R652 35V22 D613 L605...
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SA-AK22 SCHEMATIC DIAGRAM - 9 : +B SIGNAL LINE : PLAYBACK SIGNAL LINE : -B SIGNAL LINE : RECORD SIGNAL LINE DECK CIRCUIT R1055 2.2K C1038 R1098 220P R1017 8.2K CS1001 R1095 100K R1032 R1015 HEAD C1015 C1012 C1034 1000P...
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SA-AK22 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-AK22 SCHEMATIC DIAGRAM - 11 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE POWER CIRCUIT IC500 IC500 RSN3502C POWER IC R539 C537 C539 R525 6.3V220 1000P 330K C520 R538 R542 JK501 100V10 150K R513 C524 C525...
SA-AK22 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-AK22 AC TRANSFORMER P.C.B. (REPX0256A) CAUTION CAUTION RISK OF ELECTRIC SHOCK REPLACE FUSIBLE RESISTOR AC VOLTAGE LINE. PLEASE DO NOT WITH SAME TYPE RSFMB40KT-L FUSIBLE RESISTOR TOUCH THIS P.C.B T501 (POWER TRANSFORMER) RL502 D570 D571 C570 C572 D572 R589 R590...
SA-AK22 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.
SA-AK22 20.1.2. Deck Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks CASSETTE DECK RED0067 HEAD BLOCK UNIT RED0068 R/P HEAD BLOCK UNIT RDG0300 REEL BASE GEAR RDG0301 WINDING RELAY GEAR RDK0026 MAIN GEAR RDR0029 RELAY PULLEY...
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SA-AK22 20.2. CD Loading Mechanism (RD-DAC026-S) 20.2.1. CD Loading Mechanism Parts Location...
SA-AK22 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-AK22 20.3. Cabinet 20.3.1. Cabinet Parts Location...
SA-AK22 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 RKFX0086-K CASS. HOLDER (R) RKMX0057-S TOP CABINET (BENT) REEX0129 14P FFC WIRE RKWX0148-A CASS. WINDOW (L)
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks Q515 KTC3199GRTA TRANSISTOR D515 MA165TA DIODE Q517 KTC2026 TRANSISTOR D518 MTZJ5R6BTA DIODE Q518 2SA933SSTA TRANSISTOR D521 MTZJ10BTA DIODE Q519 KTA1046 TRANSISTOR...
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks S959 EVQ21405R SW CLOCK/TIMER Z1002 RGSD12A1445T SENSOR S961 EVQ21405R SW DISPLAY CHARACTER S962 EVQ21405R SW DECK 1 CERAMIC FILTERS S971 RSH1A019-2U...
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks ERDS2TJ221T 220 1/4W R250 ERJ3GEYJ121V 1.2K 1/16W ERDS2TJ104T 100K 1/4W R251 ERJ3GEYJ121V 1.2K 1/16W ERDS2TJ564T 560K 1/4W R253 ERJ3GEYJ223V 22K 1/16W...
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R503 ERDS2TJ272T 2.7K 1/4W R615 ERDS2TJ104T 100K 1/4W R504 ERDS2TJ102T 1K 1/4W R616 ERDS2TJ104T 100K 1/4W R505 ERDS2TJ102T 1K 1/4W R617...
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R691 ERDS2TJ473T 47K 1/4W R956 ERDS2TJ222T 2.2K 1/4W R692 ERDS2TJ473T 47K 1/4W R957 ERDS2TJ272T 2.7K 1/4W R693 ERDS2TJ473T 47K 1/4W R958 ERDS2TJ472T 4.7K 1/4W...
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R1074 ERJ3GEYJ823V 82K 1/16W C137 ECUV1H332KBV 3300P 50V R1075 ERJ3GEYJ222V 2.2K 1/16W C138 ECUV1E103KBV 0.01 25V R1076 ERJ3GEYJ222V 2.2K 1/16W C139 ECEA1HKA4R7B 4.7 50V...
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C360 ECEA1JM101B 100 63V C606 ECBT1H101KB5 100P 50V C363 ECUV1H101KCV 100P 50V C607 ECBT1H101KB5 100P 50V C364 ECUV1H101KCV 100P 50V C608...
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SA-AK22 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C733 ECUV1C104KBV 0.1 16V C1042 ECEA1CKA220B 22 16V C734 ECEA1AKA221I 220 10V C1043 ECEA1HKA4R7B 4.7 50V C735 ECUVNE104ZFN 0.1 25V C1044...
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SA-AK22 20.6. Packaging Printed in Singapore P010100001 D/H/K/J/N/L/PRT...