Panasonic SA-AK48 manual

● AMPLIFIER SECTION PMPO 3000W RMS power output THD 10%, both channels driven (HIGH ) 40W per channel (6 Ω ) (MID) 40W per channel (6 Ω ) (LOW ) 120W per channel (6 Ω ) (TOTAL) 200W per channel (6 Ω ) Input sensitivity AUX 250mA MIC 0.7mV Input inpedance AUX 13.9k Ω MIC 680 Ω ● FM TUNER SECTION Frequency range 87.50 - 108.00MHz (50k[...]

D/A converter MAS H (1 bit DAC) ● GENERAL Power supply : AC110V/127V/22 0V/ 230-240V, 50/5 0Hz Power consumpti on 220W Power consumpti on in standby mode Eco mode on 0.8W Eco mode off 14W Dimension s (WxHxD) 270x331x338mm 1 Accessorie s 3 2 Before Repair 3 3 Protection Circuitry 3 4 Handling Precaution s for Traverse Deck 4 4.1. Handling the trav[...]

1. Turn off the power supply . Using a 10 Ω , 10 W resistor, connec t both ends of power supply capaci tors (C571 - 574, 558) in order to discharge the voltage . 2. Before turning the power supply on, after completion of repair, slowly apply the primary voltage b y using a power supply voltage contro ller to make sure that the consum ed The prote[...]

The laser diodes in the traverse deck (optica l pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be carefu l of electrostatic breakdown during repair of the traverse deck (optical pickup ). 4.1. Handling the traverse deck (optical pickup) 1. The traverse deck (optica l pickup ) is an extr[...]

5 Precautio n of Laser Diode 5 SA-AK48[...]

6 Location of Controls 6 SA-AK48[...]

7 Location of Controls for Remote Control Transmitter 7 SA-AK48[...]

• T his sectio n descri bes proced ures for check ing the operation of the major printed circuit boards and replac ing the main compo nents. • F or reasse mbly after operat ion checks or replac ement, revers e the respec tive proced ures. Specia l reasse mbly proced ures are described only when required. 8.1. Checking for the main P.C.B. 8 Oper[...]

• Check the main P.C.B. as shown below. 8.2. Disassembly for the CD changer ass’y (The CD change r unit can be removed until the tray base ornament would removed.) 8.2.1. Disass embly for the disc tray orname nt • F ollow the (Step 1) - (Step 3) of item 8.1. 9 SA-AK48[...]

8.2.2. Disass embly for the CD change r unit • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. 10 SA-AK48[...]

8.3. Checking for the unit operational condition (Place the unit horizon tally when loading the CD change r unit.) 8.3.1. Initial setting of CD unit • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. • F ollow the disass embly instruc tion for the CD change r unit o[...]

8.3.2. Checki ng for the CD servo P.C.B. • T he initial setting of CD unit must be comple ted. (Refer to the initial setting of C D unit in item 8.3.1.) • Check the CD servo P.C.B. as shown below. 8.3.3. Checki ng for the FL P.C.B. and cassett e mechan ism control P.C.B. • T he initial setting of CD unit must be comple ted. (Refer to the init[...]

8.3.4. Checki ng for the power supply P.C.B. • T he initial setting of CD unit must be comple ted. (Refer to the initial setting of C D unit in item 8.3.1.) • Check the power supply P.C.B. as shown below. 8.4. Replacement for the traverse deck ass’y • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or[...]

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8.5. Replacement for the disc tray • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. • F ollow the disass embly instruc tion for the CD change r unit of item 8.2.2. 16 SA-AK48[...]

17 SA-AK48[...]

8.6. Disassembly and reassembly for mechanism base drive unit • F ollow the (Step 1) - (Step 11) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. • F ollow the disass embly instruc tion for the CD change r unit of item 8.2.2. • F ollow the (Step 1) - (Step 9) of item 8.4. • F ollow the (Step 1[...]

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8.7. Replacement for the motor ass’y • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. • F ollow the disass embly instruc tion for the CD change r unit of item 8.2.2. • F ollow the (Step 1) - (Step 10) of item 8.5. 24 SA-AK48[...]

8.8. Replacement for the pinch roller ass’y and head block • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. • F ollow the disass embly instruc tion for the CD change r unit of item 8.2.2. • F ollow the (Step 1) - (Step 3) of item 8.3.3. 25 SA-AK48[...]

26 SA-AK48[...]

8.9. Replacement for the CD motor ass’y, capstan belt A, capstan belt B and winding belt • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. • F ollow the disass embly instruc tion for the CD change r unit of item 8.2.2. • F ollow the (Step 1) - (Step 3) of item [...]

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8.10. Replacement for the components parts on the mechanism P.C.B. • F ollow the (Step 1) - (Step 3) of item 8.1. • F ollow the disass embly instruction f or the disc tray ornament of item 8.2.1. • F ollow the disass embly instruc tion for the CD change r unit of item 8.2.2. • F ollow the (Step 1) - (Step 5) of item 8.3.3. • F ollow the ([...]

8.12. Measure for tape trouble • F ollow the (Step 1) - (Step 3) of item 8.1. 30 SA-AK48[...]

9 Checking Procedure for Self-opera tion of Cassette Mechanis m Ass’y • This proced ure descri bes simple methods indepe ndent of mecha nism contro ller or govern or circuit. 9.1. Operation Check Providing with Cassette Tape 1. Push up the EJECT lever with rubber band.( Refer to Fig. 2) 2. Apply DC 5V to the MOTO R. (MOTO R will be rotated ) (R[...]

● Self- Diagnostic display This unit is equipp ed with a self-dia gnostic display functio n which, if a proble m occurs , will display an error code correspondin g to the proble m. Use this functio n when perform ing maintenance on the unit. ● Ho w to set the Self-Diagnos tic Functi on ● Casse tte Mechanism Test (For error code H01, H02, H03,[...]

11 Descriptio n of Error Code 11.1. Error Detection for Cassette Mechanism block No. Error Error Display Problem Condition 1 MODE S W detection error H01 Faulty operation o f cassette mechanism . Faulty contact or short-circuit of mechanism mode switch (S951, S971) 2 REC INH S W detection error H02 Recording not possible. Faulty contact or short-ci[...]

This CD test mode is provide d to check CD unit withou t connec ting to change r loading mechanism. This mode shall operat e C D PLAY with CD unit being connec ted only and CD Autom atic Alignm ent result is shown on FL display . ● Ho w to set CD test mode ● CD Automatic Alignm ent result indica tion Under CD test mode, pressin g the numer ic k[...]

13.1. Tuner Section 13.1.1. Measur ing Instruments and Specia l Tools • AM signal genera tor (AM-SG) • EVM-AC (AC Electro nic voltmeter) • EVM-DC (DC Electro nic voltmeter) • Oscilosc ope • Choke coil (100µH ) • A M loop antenn a Note: • T rimmer will be instabi lity that once you tighten , please adjust with tighten slowly from loos[...]

13.2.1. Measur ing Instruments and Specia l Tools • Digital frequency counte r • EVM-AC (AC Electro nic voltmeter) • T est tape QZZCFM : Head azimut h adjustm ent QZZCWAT : Tape speed adjustment QZZCR A : Norma l referen ce blank tape QZZCR X : CrO2 tape 13.2.2. Head Azimut h Adjustm e nt (Deck 1/2) Caution: • Please replace both azimuth ad[...]

13.2.4. Bias OSC Freque ncy Adjustm ent (Deck 2) 1. Set the unit to “AUX” position. 2. Insert the Norma l blank tape (QZZC RA) into DECK 2 and set the unit to “REC” mode (use “ REC/S TOP” key). 3. Adjust L1201 so that the output fregue ncy is within the standa rd value. Standar d value : 97±8k Hz Fig.11 13.2.5. Bias Voltage Check 1. Se[...]

14 Illustration of ICs, Transistor s and Diodes AN8839NSBE2 BU2090AF-E2 LA1833NMNTLM LC72131MDTRM M51167AFP-TB M62456FPE1 M62457FPE1 28PIN 16PIN 24PIN 20PIN 36PIN 24PIN 16PIN MN662790RSC M5218AP BA7755A M62433AFP No.1 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 21 40 41 60 61 80 1 4 8 5 1 5 41 64[...]

15.1. Schematic Diagram Notes • T his schem atic diagram may be modified at any time with the develo pment of new techno logy. Notes: • S1 : Tray position 1 detect switch in OFF position • S2 : Tray position 2 detect switch in OFF position • S3 : Tray open detect switch in OFF position • S4 : Clump switch in OFF position • S5 : Bottom s[...]

15.2. Schematic Diagram 8 7 6 5 1 2 3 4 NBOUT GND NAOUT VREF GND Vcc BIN AIN M M 14 15 16 17 18 19 20 13 12 11 10 9 8 7 21 22 23 24 25 26 6 5 4 3 2 1 NC RSTIN IN3 IN4 VREF Vcc NC GND PVcc2 PGND2 NC D4+ D4 - D3+ D3 - /RST NC IN2 PC2 NC IN1 NC GND PVcc1 PGND1 NC D1 - D1+ D2 - D2+ A B C D E F G 15 14 13 16 16 15 14 13 12 12 11 8 7 6 5 4 3 2 1 11 10 9 [...]

61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 BCLK LRCK SRDA TA DV DD 1 DVss1 TX MCLK M D ATA MLD SENSE /FLOCK /TLOCK BLKCK SQCK SUBQ DMUTE S TAT /RST SMCK CSEL TRV [...]

S G D S G D S G D 4.7K 1 2 3 4 5 Rc h Lc h PLA YBACK HEAD DECK1 1 5 3 4 2 Rc h Lc h R/P HEAD ERASE HEAD DECK2 1 5 3 4 2 CS1 101 CS1 102 TP2 TP1 R1 103 15K C1 101 1000P R1 183 100K TP6 C1 193 1000P C1 103 680P C1 104 0.022 R1 101 330K R1 102 100K TP3 R1 182 1 IC1 102 BA7755A R/P SELECT V CC GND C1 183 0.47 R1 189 4.7K R1 188 1K R1 195 100K C1 102 10[...]

14 32 33 34 35 36 29 28 30 31 27 26 25 24 23 22 47K 7 9 8 6 5 4 21 10 11 12 13 15 16 18 19 47K 10K 10K 1 MOTOR M 1 3 2 20 Q1107 DTC144TKA146 P .B EQ/REC EQ (CrO 2 /H.SPEED) R1 131 68K C1 146 16V10 R1 146 10K C1 135 1000P C1 139 50V2.2 C1 131 820P C1 129 820P R1 125 1K R1 123 10K R1 121 33K C1 133 50V4.7 C1 143 50V4.7 R 111 5 390K R 111 7 270K C1 12[...]

SOLENOID D971 MA165T A IC971 0N2180RLC PHOTO INTERRUPTER 3 1 2 4 R972 820 1 2 3 4 5 6 7 4.7K 50K 25K 4.7K 4.7K 4.7K 50K 50K 50K 50K 25K 25K S975 (F .REC.INH.) S971 (MODE) S974 (R.REC.INH) S972 (HALF) Z971 1 9 3 2 4 5 6 7 8 1 9 3 2 4 5 6 7 8 CP1 102 CS971 S973 (A TS/CrO 2 ) R973 39K 1 9 3 2 4 5 6 7 8 1 9 3 2 4 5 6 7 8 CP1 101 CS951 SOLENOID D951 MA1[...]

9 10 11 12 13 14 15 16 8 7 6 5 4 3 2 1 BP2 IH REC 2M 1M 2PL 1PL Vcc GND D ATA CLK T APE HI SP DOLBY BP1 DMT IC1105 BU2090AF-E2 SYSTEM CONTROL AB 2 1 3 4 5 6 7 8 9 10 H1 100 Lch IN Rch IN M.GND A.GND +B(5) MO.GND D.GND +B(3) Lch OUT Rch OUT 7 8 6 5 4 3 2 1 CN1201 MKDA TA MKCLK VREF(+) +B(6) ADIN6 ADIN7 TPS D.GND R1 144 10K R1 143 10K A B C D E F R12[...]

E A Ca A AM ANT AM OSC Z101 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 XI N CE DI CL DO AM LW SDC STRQ FM IF IN MONO AM IN FM IN V DD PD AI N A OUT Vss X OUT L102 0.39 H R1 10 1K C107 0.047 R1 12 100K C108 8P C136 1000P A B C D R 111 390 R128 82 R129 27K C124 100P C1 12 0.01 R1 15 560 R1 16 1K C 111 25V4.7 D101 UDZSTE175R1B R1 13 10K C133 2[...]

C 13 2 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 FM IF IN AM MIX OUT REG AM IF IN GND SD ST FM DET Vcc STRQ FM/AM MONO OSC OUT OSC AFC AM RF IN AGC AM OUT DET OUT PILOT IN MPX IN PILOT OUT Rch Lch Z102 1 2 3 4 6 1 2 3 BA DF C E R127 470 C122 50V1 R122 2.7K C121 50V0.47 C123 50V1 R131 68 C149 0.1 C147 1000P R125 470 R126 1K C148[...]

G F H R358 47K R213 27K R413 27K 1 2 4 3 A C Ca E S5 (BOTTOM) D1 GP1S94 (POSITION SENSOR) 1 2 4 3 BOTTOM SW CIRCUIT 1 2 3 1 2 3 S4 (CLAMP) W1 W2 A B C D CLAMP SW CIRCUIT MOTOR CIRCUIT 1 20 18 19 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 CN303 A.GND D.GND +B(2) TX +B(1) P .GND +B(4) MIC M.GND CHG AD1 SD CHG AD2 SER5 SER3 /CD MUTEA P .CONT L VL1 CD Lch[...]

C315 150P 1 18 19 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 SPEANA CHG PLGR VREF+ DC DET PLL CK PLL DA PLL CE CHG HALF CHG CCW CHG CW ST .D0 SER4 SW1 L VL2 GND -VP HP .GND HP .Rch +B +B(6) 26 24 25 23 22 21 20 HP .Lch HP .SW SW2 CN302 PORT 2 C217 0.033 M G D B A C H N C419 50V0.15 C219 50V0.15 C218 50V0.15 C418 50V0.15 C417 0.033 C416 2200P C415 2700[...]

1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 22K 10K 22K 15K 27K 3.3K 3.9K 1.8K 22K 22K IC301 M62456FPE1 BTL BASS BOOST 2 1 3 4 5 6 7 8 9 10 11 P .GND GND +B(4) -B(1) F AN1 +B(2) +B(6) -VP LED9V +B(5) CN301 F AN2 +B(1) CN300 2 1 3 4 5 6 7 8 9 10 11 GND1 +B(3) H.Lch OUT H.Rch OUT L.Rch OUT /CD HP SW GND P .CONT DC DET 12 12 1 2 CP3[...]

S618 (EQ ) J OPERA TION (2) CIRCUIT 3 2 1 1 8 3 6 5 4 2 1 8 3 6 5 4 2 2 1 3 4 5 6 7 4 5 3 6 2 7 1 7 7 8 8 9 7 10 6 11 5 12 4 13 3 2 1 14 15 16 R606 68K R609 22K R613 10K R617 6.8K S607 ( CD5) S610 (CD5) S613 ( CD4) S617 (CD4) S604 (CD MANAGER) R631 4.7K R638 2.7K R644 2.2K R649 1.8K R653 1.2K S623 ( CD3) S627 (CD3) S630 ( CD2) S633 (CD2) S635 ( CD1[...]

1 3 2 4 5 6 8 9 10 11 12 13 14 15 16 17 18 CP606 REST SW /RST S TAT SQCK BLKCK SPEED MLD M D ATA MCLK P .GND +B(1) TX LD SW D.GND +B(2) Rch IN A.GND Lch IN SUBQ 7 19 1 3 2 4 5 6 H600 +B(6) SER2 SER5 TPS DECK1 DECK2 VREF+ VREF- 7 8 2 1 3 4 5 6 7 8 H602 S638 (POWER) A B C D E h g VR600 (VOLUME) 3 2 1 R902 12K C615 100P C616 100P R904 22K R951 10K JK [...]

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11 20 12 13 14 15 16 17 18 19 2 1 3 4 5 6 7 8 9 10 CD Lch A.GND CD Rch D.GND +B(2) P .GND +B(4) MIC M.GND CHG AD1 CP605 TX +B(1) SD SER3 /CD MUTEA P .CONT L VL1 CHG AD2 SER5 11 12 13 14 15 16 17 18 19 2 1 3 4 5 6 7 8 9 10 +B SPEANA SW5V CHG PLGR VREF+ PLL DA PLL CE CHG HALF CHG CCW CHG CW CP604 DC DET PLL CK ST .DO L VL2 GND -VP HP .GND HP .Rch SER[...]

R552 2.2 R553 2.2 T o MAIN (DSC) CIRCUIT(CN300) on SCHEMA TIC DIAGRAM-1 1 IC500 RSN31 1W64A-P POWER AMP(HIGH,MID,LOW) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 19 20 21 22 23 24 25 26 16 17 POWER AMP CIRCUIT L SCHEMA TIC DIAGRAM-16 12 2 1 3 4 5 6 7 8 9 A B C D E F Q503,505 KTC3199GRT A OVER LOAD DET . Q503 Q505 Q51 1,514,517,518 KTC3199GRT A H.P .F ./[...]

LOW HIGHT MID Lch LOW HIGHT MID Rch SPEAKERS (6 ) SCHEMA TIC DIAGRAM-17 13 2 1 3 4 5 6 7 8 9 10 11 IC501 STK470-040 REGULA TOR H501 RL501 C584 0.022 D523 MTZJ12BT A C552 0.01 R599 4.7K C553 35V100 JK502 JK501 C544 0.01 12 1 2 5 6 4 3 C540 0.1 R575 47 R576 47 C558 25V2200 C512 100V10 D504 MTZJ30BT A C516 0.01 R524 4.7K R521 150 R529 4.7 D514 1D3E C5[...]

T501 Q977 2SC3940AQST A POWER SUPPL Y 6 2 1 3 4 5 1 2 3 4 5 6 7 8 S501 (VOL T ADJ) POWER TRANSFORMER CIRCUIT M SYNC FL1 FL2 SYS6V ECONO GND To FL CIRCUIT (H601) on SCHEMA TIC DIAGRAM - 15 K B A A B 3 1 2 4 W6 W8 W10 W7 W5 W9 F2 T1.25A W1A F1 T1.25A 2 1 3 Z501 AC IN (AC1 10/127/ 220/230-240V 50/60Hz) JK500 T502 CN500 2 1 3 W500 Q978 KRC102MT A SWITC[...]

16 Printed Circuit Board Diagram A B C DE F 1 2 3 4 5 6 7 8 CD SER V O P .C.B . A 18 16 14 12 10 8 6 4 2 19 17 15 13 11 9 7 5 3 1 CN702 IC702 1 5 10 15 20 21 25 30 35 40 41 45 50 55 60 61 65 70 75 80 IC703 1 56 71 0 1 3 20 21 25 26 C B E Q701 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 CN701 IC701 1 5 10 14 15 20 25 28 M M M701 (TRA VERSE MOTOR) M702 (S[...]

A B C DE F 1 2 3 4 5 6 7 8 MECHANISM CONTROL P .C .B. B R1180 R1179 R1181 J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J D1175 D1172 R1177 C1182 C1174 B C E Q1175 B C E Q1176 J J C1177 C1181 C1[...]

A B C DE F 1 2 3 4 5 6 7 8 J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J C120 C139 C114 C127 C129 C142 C121 C122 C130 C141 C115 C123 C119 J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J X103 C111 C125 J Z120 1 2 3 4 5 6 7 8 1 5 10 11 15 20 IC102 1 5 10 12 13 15 20 24 IC101 CF202 CF201 X102 Z10[...]

G H I JK L C1A C2A C5 C10 C11 C8 C6 C9 C4 C3 C7 R1A R3 R5 J R6 R9 R8 R7 J R11 R10 R4 J R2 J A D1A Ca A A D2A Ca A A D3 Ca A G S D Q1A L1 L2 BCE Q2 BCE Q4 BCE Q3 * L10 * L11 * L12 (REP1998B) FM FRONT END P .C .B. O 8 7 6 5 4 3 2 1 IC101 IC102 IC301 IC302 IC303 Q101 Q106 Q200 Q304 Q306 Q307 Q311 Q350 Q351 Q352 Q400 D101 D201 D302 D306 D307 D308 D309 [...]

A B C DE F 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12 13 CP604 14 15 16 17 18 19 20 21 22 23 24 25 26 IC600 1 5 10 15 20 25 30 31 35 40 45 50 51 55 60 65 70 75 80 81 85 90 95 100 FL600 1 2 3 5 6 7 8 9 10 15 20 25 30 35 40 45 R678 J J R604 R600 R629 S631 (RANDOM) J J J J J J J J J J J VR600 L605 C615 C616 C619 C617 C618 R680 R687 R681 R630 R636 R635[...]

G H I JK L 4 55 3 J R928 R927 R663 R662 R973 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 CP606 14 15 16 17 18 19 J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J R921 R954 R958 R957 R955 R943 D640 D641 D642 R956 R971 R959 R960 R970 R900 R944 R972 R926 R919 R916 R939 R933 R941 R931 R947 R946 R940 R964 R911 R949[...]

A B C DE F 1 2 3 4 5 6 7 8 J R952 J D951 R953 1 2 3 4 IC951 1 CS951 23 4 5678 9 S953 S952 S951 SOLENOID J J 7 6 5 4 3 2 1 Z971 4 1 32 IC971 D971 S974 S973 SOLENOID S972 S971 1234 5 6 789 CS971 R972 J S975 R973 MECHANSIM P .C .B . (DECK1) D MECHANSIM P .C .B . (DECK2) C 1 4 2 3 1 4 23 4 3 2 1 0N2180RLC IC971 0N2180RLC 1 1 4 23 14 23 14 23 1 4 2 3 1 [...]

A B C DE F 1 2 3 4 5 6 7 8 H603 1234 5678 R660 R654 R656 R653 R649 R644 R655 R657 R638 R659 R631 R617 R613 R661 R609 R606 J S604 (CD MANAGER) S636 (CD1) D611 (CD1) S635 ( ) S633 (CD2) D612 (CD2) S630 ( ) S627 (CD3) S617 (CD4) S610 (CD5) D613 (CD3) D614 (CD4) D615 (CD5) S623 ( ) S613 ( ) S607 ( ) OPERA TION ( 1 ) P. C . B . I CD DIRECT PLA Y/OPEN (R[...]

A B C DE F 1 2 3 4 5 6 7 8 H501 1 2 3 4 5 6 7 8 9 10 11 12 13 IC501 1 IC500 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 E500 CP501 12 11 10 9 8 7 6 5 4 3 2 1 CP500 12 11 10 9 8 7 6 5 4 3 2 1 RL501 6 5 4 3 2 1 B C E Q519 B C E Q509 B C E Q501 B C E Q512 BCE Q516 BCE Q515 BCE Q510 BC[...]

A B C DE F 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 IC1 14 12 10 8 6 4 2 13 11 9 7 5 3 1 CN1 1 2 3 4 W1 1 2 3 W2 Q1 E C B D2 J J J J C1 C2 S1 S2 RM1 (LOADING MO TOR) S3 R1 MO T OR P .C.B . H PLUNGER (REP2578A-N) N A C IN P .C .B. T502 (POWER TRANSFORMER) 1 2 3 CN500 F1 T4A FC2 FC1 F2 T2A FC4 FC3 W1A Z501 J J JK500 J J (110/127/220/230-240V 50/60Hz) AC [...]

A B C DE F 1 2 3 4 5 6 7 8 M PO WER TRANSFORMER P .C .B. R979 W1A W5 W7 W10 W9 W8 W6 W500 1 2 3 13 12 11 10 9 8 7 6 5 4 3 2 1 CN501 4 3 2 1 RL502 R984 R986 R978 R980 R982 R981 R983 R976 R977 J J R985 D979 D980 D982 D977 C976 C977 C975 C981 6 5 4 3 2 1 CN502 J J D983 D984 D978 B C E Q977 C980 C979 ECB Q978 ECB Q976 D981 C978 B C E Q975 T501(POWER TR[...]

17 Block Diagram 27 4 5 28 CD OPTICAL PICKUP Q701 6 7 Vref. Vref. Ac h VCBA Bc h 1 Vref. Vref. Ec h VCBA Fc h F 2 Vref. Vref. 23 16 A B E +B2 AN8839NSBE2 IC701 SER VO AMP Vref. Vref. +B8 Vref. 13 Vref. AN8739SBE2 IC703 FOCUS COIL / TRACKING COIL / TRA VERSE MO TOR / SPINDLE MO T OR DRIVE Vref. Vref. 26 VREF 14 3 +B2 Vref. 24 FE BDO 11 3 TENV RF DET[...]

1 BIT DAC PWM LOGIC 76 RSEL 44 ARF 46 DRF 47 41 52 PLLF 48 EFM 53 PCK 14 SQCK 80 SSEL 73 9 MLD 68 MSEL 75 OUTR PWM (R) OUTL PWM (L) MLD MN662790RSC IC702 SER VO PROCESSOR / DIGIT AL SIGNAL PROCESSOR DIGIT AL FIL TER / D/A CONVER TER Rc h PSEL 78 7 +B2 45 0 6 0 DV DD 1 AV DD 2 V DD 79 80 SSEL 78 PSEL IOSEL BLKCK /CLDCK SBCK SUBC DEMPH A/D CONVERTER [...]

19 20 21 22 23 AM MIX 12 FM IF 2 3 REG 4 13 AGC 6 8 11 10 AM RF AMP AM IF 24 1 AM OSC BUFF . ALC X102 (10.6MHz) 18 7 8 6 4 3 5 FM ANT 1 (FM FRONT END) RF AMP FM MIXER LOCAL OSC 9 Vcc +B(FM) CF201 CF202 Q101 FM IF AMP +B4 Z102 AM IFT 1 20 X103 (7.2MHz) XIN XOUT CE 2 3 DI 4 CL D0 5 9 8 7 10 STRQ SDC FM 15 V DD 16 PD IFIN 11 LW 1/2 14 13 FM IN AM IN Q[...]

7 BP1 T APE ERASE HEAD [D E C K2] R/P HEAD (L ch) [D E C K2] 4 [ DECK2 ] S973 (A TS/CrO2) Q1107 (Q1108) L1201 Q1179 Q1173~1176 Q1103 (Q1104) 5 [ DECK1 ] S953 (A TS/CrO2) REC EQ (CrO2/H.SPEED) 3 25(12) 23 22 15 3 24 (13) 14 SW ALC 26(1 1) 28(9) 27(10) 2 1 Q1101(Q1102) 36(1) 33(4) 32(5) 31(6) 21 17 16 TPS 18 30(7) 34 CR NETWORK BIAS OSC CONTROL +B4 +[...]

SD 21 SD 3 M38199MF227 IC600 SYSTEM CONTROL / FL DRIVE DECK1 DECK1 DECK2 DECK2 2 Rc h 10 1 1 A B C 15 PMOUT V CC 9 +B6 14,16 GND 1/2 ENB 13 D633 8 ANF 12 13 M62457FPE1 IC603 SPE. ANAL YZER AMP SPE 48 SPC SPB SP A D634 D635 47 46 11 1 SER3 CRT/ SER4 M62433AFP IC303 DIGIT AL SOUND CONTROLLER B MUTING MUTING CONT . Q400 (Q200) Q306 -B1 MUTEA D629 BLKC[...]

Z602 (REMOTE SENSOR) 31 RMT V SS 40 AV SS 99 M5218AP IC302 24 1 Rc h 14 NF CR NETWORK 18 23 19 22 21 13 7 14 13 8 17 10 9 11 12 4 3 2 6 M62456FPE1 IC301 BTL BASS BOOST +B4 5 -B1 20 +B4 -B1 BUFFER AMP BU2090AF-E2 IC601 LED DRIVE DATA 23 CLK +B10 10~15 REC/PLA Y TIMER, G1~5 D604, 611~615 (REC/PLA Y TIMER, CD1~5) 16 V CC +B11 1 GND 9 LED CTL +B10 +B9 [...]

Rc h HEADPHONES 16 21 GND 10 4 7 5 (8) 11 (12) 1 (2) 6 3 20 15 19 (18) 26 (25) 23 (22) 24 RSN311W64A-P IC500 POWER AMP +B7 D519 -B2 D517 -B3 Q503,505 9 +B8 13 14 LOW HIGH MID SPEAKERS (6 ) D515 Q500,507, 520,521 MOTO R DRIVE M FAN M OTO R Q502,508 Q510 AC I N H.P .F . L.P .F . Q518(Q517) Q511(Q514) O VER LOAD DET . SWITCH- ING SYNC 98 VEE -VP DC DE[...]

POWER TRANSFORMER T501 F1 RL501 FL1 FL2 FL DISPLA Y (FL600) RL502 POWER TRANSFORMER Z501 T502 Q977,D982 D978 D643 SYS6V 17 15, 16 11 9 14 13 31 2 2 1 Q501, D504,514,516 -VP PCONT D513 D979~981, 985,986 Q978 Q610 Q611 VREF+ SYNC ECONO STK470-040 IC501 REGULA TOR ACIN +B5 Q519 +B2 Q516, D512,518 /CD 4 +B6 7 6 8 -B1 +B4 10 +B3 18 D526 Q512 D521 D520 Q[...]

18 Troublesh ooting Guide SA-AK48 77[...]

SA-AK48 78[...]

19 Wiring Connection Diagram 1 15 2 16 CN701 M702 (SPINDLE MOT OR) M701 (TRA VERSE MOT OR) A CD SER V O P .C.B . . . . . . . . . . . . . 19 . . . . . . . . 1 18 . . . . . . . 2 CN702 F CLAMP SW P .C.B . H MO TOR P .C.B . G BO TTOM SW P .C.B . N A C IN P. C . B . M PO WER TRANSFORMER P. C . B . W2 W2 CN1 W1 W1 RM1 (LOADING MOT OR) 1 . . 4 4 . . 1 1 [...]

AM ANT AU X FM ANT L PO WER AMP P .C.B . E MAIN P .C.B . K FL P .C.B . J OPERA TION ( 2 ) P. C . B . 1 . . . . . . . . . . 12 CP500 1 . . . . . . . . . . 12 CN301 1 . . . . . . . . . . 12 CP501 1 . . . . . . . . . . 12 CN300 13 . . . . . . . . . . . 1 13 . . . . . . . . . . . 1 H501 SPEAKERS (6 ) CN304 1 . . . . . . . . 10 CN303 2 . . . . . . . . 2[...]

20.1. IC600 (M38199MF227): System Control and FL Driver Pin No. Terminal Name I/O Function 1 CRT/SER4 I CRT timer 2 TPS I TPS signal input 3 DECK1 I Deck1 mechanism condition input 4 DECK2 I Deck2 mechanism condition input 5-8 KEY4- KEY1 I Operation switch signal input 9 SER1 O Serial clock output for IC601 and IC602 10 SER2 O Serial data/clock out[...]

Pin No. Terminal Name I/O Function 5 DV SS 1 - GND terminal 6 TX O Digital audio interface signal output 7 MCLK I Command clock signal input 8 MDATA I Command data signal input 9 MLD I Command load signal input 10 SENSE - Sense signal (Not used, open) 11 /FLOCK - Optical servo condition (focus) (Not used, open) 12 /TLOCK - Optical servo condition ([...]

Notes: • • Important safety notice : Compo nent identifi ed mark have specia l characteristic s import ant safety. Furthermore, specia l parts which have purposes of fire- retardant (resisto rs), hight-q uality sound (capac itors), low-noise (resisto rs), etc. are used. When replaci ng any of compo nents, be sure to use only manuf acture s spec[...]

Ref. No. Part No. Part Name & Description Psc. Remarks TRAVERSE DECK 301 RML0517 TIMING LEVER 1 [M] 302 RML0516 PLUNGER LEVER 1 [M] 303 RMB0551 UPPER SPINDLE SPRING 1 [M] 304 RMQ0744 LOWER HOOK 1 [M] 305 RDV0056 BELT 1 [M] 306 RML0525 FRONT LOCK LEVER 1 [M] 307 RML0526 DISC LEVER 1 [M] 308 RDG0424 DRIVE GEAR 1 [M] 309 RDG0425 CHANGE GEAR 1 [M] [...]

Ref. No. Part No. Part Name & Description Psc. Remarks Q901 RVTDTC143EST TRANSISTOR 1 [M] Q902 RVTDTC143EST TRANSISTOR 1 [M] Q903 RVTDTC143EST TRANSISTOR 1 [M] Q975 2SC1740SSTA TRANSISTOR 1 [M] Q976 2SD2144STA TRANSISTOR 1 [M] Q977 2SC3940AQSTA TRANSISTOR 1 [M] Q978 KRC102MTA TRANSISTOR 1 [M] Q1101 2SJ498CDTA TRANSISTOR 1 [M] Q1102 2SJ498CDTA T[...]

Ref. No. Part No. Part Name & Description Psc. Remarks S602 EVQ21405R SW AUX 1 [M] S603 EVQ21405R SW DECK 1 OPEN 1 [M] S604 EVQ21405R SW CD MANAGER 1 [M] S605 EVQ21405R SW TUNER 1 [M] S606 EVQ21405R SW TAPE EDIT 1 [M] S607 EVQ11G05R SW EJECT 5 1 [M] S608 EVQ21405R SW CD 1 [M] S609 EVQ21405R SW REC/STOP 1 [M] S610 EVQ11G05R SW DISC 5 1 [M] S611 [...]

[...]

Ref. No. Part No. Part Name & Description Psc. Remarks R226 ERJ6GEYJ101V 100 1/10W 1 [M] R230 ERJ6GEYJ473V 47K 1/10W 1 [M] R231 ERJ6GEYJ183V 18K 1/10W 1 [M] R232 ERJ6GEYJ392V 3.9K 1/10W 1 [M] R233 ERJ6GEYJ224V 220K 1/10W 1 [M] R234 ERJ6GEYJ222V 2.2K 1/10W 1 [M] R240 ERJ6GEYJ433V 43K 1/10W 1 [M] R248 ERJ6GEYJ390V 39 1/10W 1 [M] R249 ERJ6GEYJ390V[...]

Ref. No. Part No. Part Name & Description Psc. Remarks R560 ERDS2TJ124T 120K 1/4W 1 [M] R561 ERDS2TJ103T 10K 1/4W 1 [M] R562 ERDS2TJ104T 100K 1/4W 1 [M] R563 ERDS2TJ103T 10K 1/4W 1 [M] R564 ERDS2TJ103T 10K 1/4W 1 [M] R565 ERDS2TJ823T 82K 1/4W 1 [M] R566 ERDS2TJ203T 20K 1/4W 1 [M] R567 ERDS2TJ104T 100K 1/4W 1 [M] R568 ERDS2TJ223T 22K 1/4W 1 [M] [...]

Ref. No. Part No. Part Name & Description Psc. Remarks R708 ERJ6GEYJ223A 22K 1/10W 1 [M] R709 ERJ6GEYJ683A 68K 1/10W 1 [M] R710 ERJ6GEYJ102V 1K 1/10W 1 [M] R711 ERJ6GEYJ823A 82K 1/10W 1 [M] R712 ERJ8GEYJ221A 220 1/8W 1 [M] R714 ERJ6GEY0R00A 0 1/10W 1 [M] R715 ERJ6GEYJ102A 1K 1/10W 1 [M] R717 ERJ6GEYJ102A 1K 1/10W 1 [M] R718 ERJ6GEYJ102A 1K 1/10[...]

Ref. No. Part No. Part Name & Description Psc. Remarks R1153 ERJ6GEYJ122A 1.2K 1/10W 1 [M] R1154 ERJ6GEYJ122A 1.2K 1/10W 1 [M] R1155 ERJ6GEYJ221A 220 1/10W 1 [M] R1156 ERJ6GEYJ221A 220 1/10W 1 [M] R1158 ERJ6GEYJ221A 220 1/10W 1 [M] R1161 ERJ8GEYJ472A 4.7K 1/8W 1 [M] R1162 ERJ6GEYJ472A 4.7K 1/10W 1 [M] R1165 ERJ6GEYJ563A 56K 1/10W 1 [M] R1166 ER[...]

Ref. No. Part No. Part Name & Description Psc. Remarks C306 ECEA1HKA0R1B 0.1 50V 1 [M] C307 ECUZ1H102KBN 1000P 50V 1 [M] C308 ECUZ1E473ZFN 0.047 25V 1 [M] C312 ECUZ1E104ZFN 0.1 25V 1 [M] C313 ECUZ1E104ZFN 0.1 25V 1 [M] C314 ECUV1H151KCN 150P 50V 1 [M] C315 ECUV1H151KCN 150P 50V 1 [M] C316 ECUV1H151KCN 150P 50V 1 [M] C317 ECEA1HKA010B 1 50V 1 [M[...]

Ref. No. Part No. Part Name & Description Psc. Remarks C613 ECBT1H681KB5 680P 50V 1 [M] C614 ECBT1H681KB5 680P 50V 1 [M] C615 ECBT1H101KB5 100P 50V 1 [M] C616 ECBT1H101KB5 100P 50V 1 [M] C617 ECBT1H101KB5 100P 50V 1 [M] C618 ECBT1H101KB5 100P 50V 1 [M] C619 ECBT1E104ZF5 0.1 25V 1 [M] C622 ECBT1E103ZF5 0.01 25V 1 [M] C623 ECBT1H102KB5 1000P 50V [...]

[...]

22 Cabinet Parts Location 95 SA-AK48[...]

96 SA-AK48[...]

23 Mechanis m Parts Location 97 SA-AK48[...]

98 SA-AK48[...]

24 CD Mechanis m Parts Location 99 SA-AK48[...]

25 Packaging 100 SA-AK48[...]

Type 4 way speaker system Speaker(s) Super Woofer 17cm cone type Woofer 12cm cone type Tweeter 6cm ring shaped dome type Super Tweeter Piezo type Impedance HIGH 6 Ω MID 6 Ω LOW 6 Ω Input power HIGH 60W ( Music) MID 60W ( Music) © 2000 Matsushita Electronics (S) Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violati[...]

1 Connectio n of the Speaker Cables • Be sure to connec t speake r cables before connec ting the AC power supply cord. • T he load impeda nce of any speake r used with this unit must be 6 Ω . • Be sure to connec t the cable from the right speaker to the roght terminal and the cable from the left speake r to the left terminal. 1. Strip off t[...]

4 Replace m en t Part s List Note s : • Import a n t safet y notic e : Comp o nents identif i ed b y mark have speci a l chara c teristi c s impor t an t fo r safety. Furth e rmore , speci a l part s whic h hav e purpo s e s of fireret a rdan t (resist o rs) , high-q u alit y soun d (capa c itors) , low nois e (resist o rs) , et c ar e used. Whe [...]

Ref. No. Part No. Part Name & Description Remarks 19 XTB3+10G SCREW (EXTEND PORT) [M] 20 RGK0985B-H ORNAMENT CAP [M] 21 RKA0072-KJ LEG [M] 22 RGQ0260-S PANEL SPACER [M] 23 RYQ0297-H ORNAMENT ASS’Y (L) [M] 23 RYQ0297A-H ORNAMENT ASS’Y (R) [M] 24 RGK0500-K DUST CAP [M] 25 RMR1208-K TWEETER SPACER [M] 26 REE0981 WIRE [M] 27 RMQ0931C CAB PACKIN[...]