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Panasonic SA-AK250, Service Manual

The Panasonic SA-AK250 Operating Instructions Manual is an essential guide for getting the most out of your audio system. With detailed step-by-step instructions, this manual provides all the information you need to set up and use your SA-AK250 effectively. Download it for free from our website and unlock the full potential of your device.

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20.3. (C) Panel P.C.B.

1

2

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8

9

A

B

C

D

E

F

G

H

10

1

12

13

C

PANEL P.C.B (REPV0131L)

1

SA-AK250PL

PANEL P.C.B

0109A-1

0109A-1

W1006

R6752

PbF

H6555

W1004

C6552

JK6551

S6205

(CD5)

S6204

R6205

(CD4)

S6203

(CD3)

S6202

(CD2)

S6201

(CD1)

S6207

(/REW/)

R6632

S6206

(/FF/)

J6631

R6631

C6623

C6635

IC6601

JW6002

FL6602

C6481

Z6481

3

1

2

J6751

J6621

CN6601

JK6751

J6752

S6101

(AC IN)

J6753

D6458

S6104

(SINGLE CHANGE)

S6102

(MULTI CHANGE)

(OPEN/CLOSE)

S6103

W801

W831

W871

W833

W837

W838

W803

W841

R6202

W873

W840

W1017

W1020

W1010

W874

W875

W877

W845

W876

W843

W847

W848

W81

1

W814

W813

W673

W852

W853

W854

W882

W880

W881

W851

W816

W855

W856

W892

W893

W858

W860

W857

W859

W818

9

10

2

4

5

6

7

8

3

C6551

R6204

R6206

R6207

W905

R6605

C6603

C6602

C6604

R6604

C6601

W914

D6301

R6763

R6753

R6754

R6458

C6753

R6751

C6751

C6752

W1001

R6102

R6105

R6103

R6104

R6209
R6208

R6493

R6203

C6553

SENSOR

HEADPHONE

MUSIC PORT

W805

W677

W800

W802

W832

W676

W1015

W891

C6632

C6631

D6635

R6602

R6603

W1103

W1011

R6601

W1005

R6481

R6199

W671

W672

R6109

W670

W925

W675

W817

J6553

J6551

J6552

1

44

34

33

23

22

12

1

1

5

10

15

25

30

35

40

44

11

2

4

5

3

1

6

7

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3

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5
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8

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8

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SA-AK250PL

80

Summary of Contents for SA-AK250

Page 1: ...istribution is a violation of law SA AK250PL Colour S Silver Type Terminal Stereo 3 5 mm jack Sensitivity 100 mV 4 7 kΩ Phone jack Terminal Stereo 3 5 mm jack n CASSETTE DECK SECTION Track system 4 track 2 channel Heads Record playback Solid permalloy head Erasure Double gap ferrite head Motor DC servo motor Recording system AC bias 100 kHz Erasing system AC erase 100 kHz Tape speed 4 8 cm s Overa...

Page 2: ...30 x 323 mm Mass 7 1 kg Operating temperature range 5 to 35 C Operating humidity range 5 to 90 RH no condensation n SYSTEM SC AK250 PL Music center SA AK250 PL Speaker SB AK250 PL For Information on speaker system plesae refer to the original Service Manual Order No MD0704055CE for SB AK250PL S Notes 1 Specifications are subject to change without notice Mass and dimensions are approximate 2 Total ...

Page 3: ...hanism Circuit 71 19 5 E Power Circuit 72 19 6 F Deck Circuit 74 19 7 H Transformer Circuit 75 20 Printed Circuit Board 77 20 1 A CD Servo P C B F Deck P C B G Deck Mechanism P C B 78 20 2 B Main P C B 79 20 3 C Panel P C B 80 20 4 D Sub Panel P C B 81 20 5 E Power P C B 82 20 6 H Transformer P C B 83 21 Illustration of ICs Transistors and Diodes 85 22 Terminal Function of IC s 86 22 1 IC7001 MN66...

Page 4: ...should be between 1MΩ and 5 2MΩ When the exposed metal does not have a return path to the chassis the reading must be 1 1 2 Leakage Current Hot Check See Figure 1 1 Plug the AC cord directly into the AC outlet Do not use an isolation transformer for this check 2 Connect a 1 5kΩ 10 watts resistor in parallel with a 0 15µF capacitor between each exposed metallic part on the set and a good earth grou...

Page 5: ...5 FUSE PROTECTOR JK5950 K2AB2B000007 JK AC INLET A2 K2CB2CB00021 AC CORD R5950 ERC12UGK335D 3 3M 1 2W 2 Prevention of Electro Static Discharge ESD to Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and s...

Page 6: ...stalled Caution Be sure no power is applied to the chassis or circuit and observe all other safety precautions 8 Minimize body motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity ESD sufficient to damage an ES device 6 SA AK250PL ...

Page 7: ... the short pin finish the job in as short time as possible 4 Do not turn the variable resistor for laser power adjustment It is pre adjusted during production time Grounding for electrostatic breakdown prevention 1 Human body grounding Use the anti static wrist strap to discharge the static electricity from your body 2 Work table grounding Put a conductive material sheet or steel sheet on the area...

Page 8: ...8 SA AK250PL ...

Page 9: ... the preset variable resistor on the optical pickup lens 4 Do not disassemble the optical optical pickup unit 5 If the optical pickup is replaced use the manufacturer s specified replacement pickup only 6 Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure CAUTION THIS PRODUCT UTILIZES A LASER USE OF CONTROLS OR AD...

Page 10: ...ork using Lead Free Solder PbF The lead free solder has to be used when repairing the equipment for which the lead free solder is used Definition The letter of PbF is printed on the PCB using the lead free solder To put lead free solder it should be well molten and mixed with the original lead free solder Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC Since th...

Page 11: ...6 Accessories Note Refer to Replacement Parts List Section 24 for part number Remote Control FM Antenna Wire AC Cord AM Loop Antenna 11 SA AK250PL ...

Page 12: ...7 Operating Procedures 7 1 Main Unit Key Buttons Operations 12 SA AK250PL ...

Page 13: ...7 2 Remote Control Key Buttons Operations 13 SA AK250PL ...

Page 14: ...8 New Features 8 1 Using the Music Port This feature enables you to enjoy music from a portable audio equipment 14 SA AK250PL ...

Page 15: ...With reference to page 15 of the operating instruction manual 15 SA AK250PL ...

Page 16: ...OM checksum Refer to the section 9 2 1 for more information 4 Set for cold start when reset start is executed the next time Refer to the section 9 2 for more information Muting Clock Setting Refer to the section 9 2 for more information 0 Tape Eject Test Refer to the section 9 2 for more information DIMMER All segment display for the FL Refer to the section 9 2 for more information DISC CRS1 Inspe...

Page 17: ...17 SA AK250PL ...

Page 18: ...9 2 1 EEPROM Checksum ROM Correction Purpose To check for microprocessor firmware version and EEPROM checksum ROM correction 18 SA AK250PL ...

Page 19: ...or the microprocessor shall be made after calculating checksum by summing up the content of data area from EEPROM IC 2 In the case when no EEPROM IC is installed It is display as below no display of checksum data 3 In cases that the filename is different even though a EEPROM is installed or no correction file exists NG shall be displayed the correction point existence data is set to 0 at this cond...

Page 20: ...20 SA AK250PL ...

Page 21: ...ms occuring for the unit and its respective components by displaying the error codes These error code such as U H and F are stored in memory and held unless it is cleared The error code is automatically display after entering into self diagnostic mode 9 4 1 Error Code Table for Deck Mechanism 21 SA AK250PL ...

Page 22: ...9 4 2 Error Code Table For CD Changer Block 22 SA AK250PL ...

Page 23: ...23 SA AK250PL ...

Page 24: ...24 SA AK250PL ...

Page 25: ... ignored and not memorize For system with EEPROM as memory backup memory space in EEPROM is neccesary 2 To display all error code memorized In CRS1 Self Diagnostic mode press SINGLE CHANGE to display subsequence error code It shall repeat after reaching error no 5 e g 1 _ _ _ _ I H M S SINGLE CHANGE 2 _ _ _ _ I T O P SINGLE CHANGE 3 _ _ _ _ H O M E SINGLE CHANGE 4 _ _ _ _ L O A D SINGLE CHANGE 5 _...

Page 26: ...ation checks or replacement reverse the respective procedures Special reassembly procedures are described only when required 3 Select items from the following index when checks or replacement are required 4 Refer to the Parts No on the page of Parts Location and Replacement Parts List Section 24 if necessary Caution After replacing of CD Changer Unit ageing test is necessary Please confirm operati...

Page 27: ...hart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing To assemble the unit reverse the steps shown in the chart as below 27 SA AK250PL ...

Page 28: ...10 3 Main Parts Location 28 SA AK250PL ...

Page 29: ... release catches Step 5 Remove top cabinet Step 1 Remove 1 screw at rear panel Step 2 Detach the FFC cables at connectors CN2801 CN2805 on Main P C B Step 3 Release the claws outwards on both ends Step 4 Lift the CD changer unit upwards to remove it 10 4 Disassembly of Top Cabinet 10 5 Disassembly of CD Changer Unit CRS1 Follow the Step 1 Step 5 of Item 10 4 29 SA AK250PL ...

Page 30: ...P C B Step 5 Remove 2 screws Step 6 Remove the Mecha Chassis Note For disassembly assembly of traverse unit please refer to section 10 15 of this service manual Please refer to original Service Manual for the Disassembly and Assembly of the CD Changer Unit CRS1 Step 4 Remove rear panel 10 6 Disassembly of Rear Panel Follow the Step 1 Step 5 of Item 10 4 30 SA AK250PL ...

Page 31: ...screws for transformer to bottom chassis Step 3 Push the Transformer P C B backwards to remove it Step 2 Remove Main P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 4 of Item 10 6 10 8 Disassembly of Transformer P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 4 of Item 10 6 31 SA AK250...

Page 32: ... P C B over and desolder the pins Step 2 Remove 1 screw and IC clip For IC5301 only Step 3 Remove IC5301 from heat sink unit Note For disassembly of IC5101 Q5101 Q5102 Q5111 and Q5112 repeat Step 1 to Step 2 For information IC5101 Q5101 Q5102 Q5111 and Q5112 does not have IC clip 10 9 Disassembly of Power P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the ...

Page 33: ... at the bottom chassis is seated into the 2 slots at bottom of front panel at 2 catches one on each side of bottom chassis to be aligned to front panel s slot Assembly is secured upon hearing clicking sound Step 4 Remove Panel P C B 10 11 1 Disassembly of Lid Step 1 Lift the spring sideward 10 11 Disassembly for Panel P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 ...

Page 34: ...or disassembly of parts for deck mechanism unit refer to Section 10 16 10 12 Disassembly of Tact Switch P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 10 13 Disassembly of Deck mechanism unit Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 10 14 Disassembly o...

Page 35: ...ice Manual order no MD0509368C0 Step 1 Press and hold the plunger lever and rotate the gear as arrows shown until it stop Step 2 Desolder wire at deck motor terminals Step 3 Remove Deck P C B Step 2 Push the traverse slide plate as arrow shown to release the traverse unit Caution Do not exert strong force on the traverse slide plate 10 15 Disassembly of Traverse Unit Follow the Step 1 Step 5 of It...

Page 36: ...unit Step 2 Push the traverse slide plate as arrow shown to lock the traverse unit 10 16 Disassembly for Deck Mechanism Follow the Step 1 Step 4 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 Follow the Step 1 Step 3 of Item 10 14 Follow the Step 1 Step 3 of Item 10 15 36 SA AK250PL ...

Page 37: ...10 16 1 Replacement of Pinch Roller and Head Block 37 SA AK250PL ...

Page 38: ...10 16 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 38 SA AK250PL ...

Page 39: ...tep 4 Remove Deck Mechanism P C B 10 17 Disassembly of Deck Mechanism P C B Follow the Step 1 Step 4 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 Follow the Step 1 Step 3 of Item 10 13 Follow the Step 1 Step 3 of Item 10 14 39 SA AK250PL ...

Page 40: ...tep 2 Remove spring and push the cassette lid in the direction of arrows Step 2 Push the lever upward and open the cassette lid Remove the cassette tape 10 18 Disassembly of cassette lid Follow the Step 1 Step 4 of Item 10 4 Follow the Step 1 Step 4 of Item 10 5 Follow the Step 1 Step 5 of Item 10 10 Follow the Step 1 Step 3 of Item 10 13 10 19 Rectification for tape jam problem Follow the Step 1 ...

Page 41: ...Note Follow 10 18 Disassembly of cassette lid Step1 to Step 3 Remove the cassette tape 41 SA AK250PL ...

Page 42: ...d Tools Service Tools Extension FFC A Deck P C B Main P C B REEX0485 14 Pins 12 Service Positions Note For description of the disassembly procedures see the Section 10 12 1 Checking and Repairing of Main P C B 42 SA AK250PL ...

Page 43: ...12 2 Checking and Repairing of Transformer P C B 12 3 Checking and Repairing of Panel Deck Deck Mechanism P C B 43 SA AK250PL ...

Page 44: ...12 4 Checking and Repairing of Power P C B 44 SA AK250PL ...

Page 45: ...al timing at STOP mode ON approx 200msec e REV REW Supply the plunger power in a flash at REV PLAY mode ON approx 50msec f STOP Supply the plunger power in a flash at FF mode ON approx 50msec Repeat the operation FWD PLAY Note Other operation may start if a timing of supplying the plunger power is missed 13 1 1 Connection Status between Mechanism and Power Supply Motor Plunger 13 1 2 Operative Par...

Page 46: ...46 SA AK250PL ...

Page 47: ... 2 Remove 4 screws from the mechanism unit to disassemble under 10 13 Disassembly of Deck Mechanism Unit 3 Connect the headphone jack output jig Fig 8 to headphone jack Fig 8 Fig 9 14 1 4 Tape Speed Adjustment Normal speed adjustment only during forward playback Product reference value 3 000 90Hz 1 Connect a frequency indicator Fig 10 2 Playback the middle portion of the test tape QZZCWAT 3 Adjust...

Page 48: ...he recording mode Repeat pressing the buttons till the recording pause mode is activated 5 Check that the output level is within the standard range Standard Range 16 3mV Fig 12 14 1 6 Bias Frequency Check 1 Connect a digital frequency counter Fig 13 2 Set the function to TAPE position 3 Insert a normal blank cassette tape QZZCRA and press REC mode on main unit 4 Check that the output frequency is ...

Page 49: ... shall be regarded as reference information when probing defect point because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself 15 1 CD Servo P C B 15 2 Deck P C B Deck Mechanism P C B 49 SA AK250PL ...

Page 50: ...15 3 Main P C B 50 SA AK250PL ...

Page 51: ...15 4 Panel P C B Transformer P C B 15 5 Power P C B 51 SA AK250PL ...

Page 52: ...15 6 Waveform Chart 52 SA AK250PL ...

Page 53: ...DECK P C B SOLDER SIDE H TRANSFORMER P C B SOLDER SIDE D SUB PANEL P C B SOLDER SIDE PbF PbF PbF PbF PbF 1 21 2 20 9 1 CN2810 2 1 CN2801 21 1 22 2 CN2805 15 1 14 2 CN2806 30 2 29 1 CN2803 H6555 JK6551 20 2 9 1 21 1 CN2808 12 1 CN2809 12 1 CN3601 10 1 B MAIN P C B SOLDER SIDE E POWER P C B SOLDER SIDE PbF PbF PbF JW6002 Z6481 JK6751 1 10 CN5951 CN5950 1 9 CN6601 2 30 1 29 9 1 H5104 9 1 JK5103 CN510...

Page 54: ...54 SA AK250PL ...

Page 55: ...3 52 54 55 82 61 72 47 35 40 31 42 41 49 48 45 43 32 34 44 22 21 24 25 23 29 30 66 57 AVSS1 TX SRVMON1 SRVMON0 NTEST NRST AVDD2 AVSS2 ARFFB ARFF ARFOUT ARFDC RFOUT RFIN CENV CTRCRS OSCIN VREF RFENV PC SPOUT TRVP TRP FOP LD PD A B C D E F NSRVMONON REGON MDATA ARFIN IREF DSLF PLLF PLLFO TXTCK SBCK PRAMVDD33 PRAMVSS33 D0 D15 A0 A11 BA0 BA1 TXTD DQSY SUBC TXNCLDCK BLKCK FLAG 65 71 20 18 83 92 94 99 1...

Page 56: ...S971 CP1902 6 M D971 S971 MODE S972 HALF S975 RECINH_F 9V VREF 9V IC1001 AN7326K DECK R P IC IC1000 C1AA00000612 ANALOG SWITCH IC971 CNB13030R2AU PHOTO INTERUPTOR L1301 Q1317 SWITCH Q1316 SWITCH Q1314 SWITCH 9V Q1315 SWITCH Q1312 SWITCH Q1304 SWITCH Q1101 MUTE SWITCH Q1201 Q1303 SWITCH Q1309 Q1310 BIAS SWITCH 9 22 15 8 1 3 5 2 4 19 4 6 DECK 2 HEAD RCH DECK 2 ERASE HEAD DECK 1 B HEAD LCH MUTE SWITC...

Page 57: ... MUTE SWITCH Q2142 AGC CONTROL SWITCH Q2242 AGC CONTROL SWITCH Q2411 MUTE SWITCH Q2317 MUTE SWITCH Q2417 MUTE SWITCH HPF LPF Q2511 MUTE SWITCH DRIVER CN2809 CN5102 6 CN2809 CN5102 9 CN2809 CN5102 4 CN2806 CN6601 25 CN2806 CN6601 27 1 IN L1 2 IN R1 5 IN L3 6 IN R3 7 IN L4 8 IN R4 3 IN L2 4 IN R2 IC2803 C1BB00001121 AUDIO SOUND PROCESSOR 39 40 CLK DATA IDCDET ASPCLK ASPDA MUTEA 42 L OUT 37 R OUT 12V...

Page 58: ...CN3200 P901 8 CN3200 P901 10 CN3200 P901 11 CN3200 P901 5 CN3200 P901 19 CN3200 P901 15 CN3200 P901 16 CN3200 P901 17 CN2801 CN7002 6 CN2801 CN7002 7 CN2801 CN7002 8 17 16 15 CN3200 P901 18 CN2809 26 27 15 13 10 11 78 77 76 19 75 81 79 50 47 46 3 5 4 41 42 43 94 20 18 93 71 90 92 72 70 51 88 54 55 87 82 83 86 80 84 85 21 57 58 56 1 3 59 95 97 39 12 30 22 52 IDCDET ASPDA 40 MUTEA 12V 5 3V 5V 3 3V 3...

Page 59: ...601 CN2806 7 CN6601 CN2806 17 JW6601 JW6002 3 JW6601 JW6002 7 JW6601 JW6002 10 JW6601 JW6002 9 JW6601 JW6002 8 JW6601 JW6002 2 JW6601 JW6002 4 CN6601 CN2806 3 CN6601 CN2806 11 CN6601 CN2806 13 H6555 CN5951 7 FL6602 A2BD00000172 FL DISPLAY IC6601 C0HBB0000057 FL DRIVER 14 29 25 40 1 44 FL1 FL2 31 41 5 11 Z6481 7 9 8 DIN STB CLK S6201 S6207 JK6751 MUSIC PORT JK6551 HEADPHONE VREF VREF REMOTE SENSOR ...

Page 60: ...L AMP 2 3 IN1 OUT1 10 OUT2 14 VDDA1 20 VSSA1 18 IN1 21 22 IN2 IN2 23 MODE Q5153 IC5101 C0DAZYY00005 REGULATOR IC 4 2 5 6V VCC 3 3V CTRL 1 5 MODE SWITCH D5130 Q5154 MODE SWITCH Q5112 Q5114 CURRENT STABLISER 11V REGULATOR Q5111 15V REGULATOR Q5103 Q5104 FAN ON OFF SWITCH Q5113 CURRENT LMIITER SWITCH Q5102 CURRENT CONTROL SWITCH Q5108 Q5109 SWITCH VOLTAGE REGULATOR Q5101 Q5110 CURRENT CONTROL SWITCH ...

Page 61: ...MER Q5951 VOLTAGE REGULATOR Q5950 VOLTAGE REGULATOR Q5953 PCONT SWITCH Q5952 D5961 D5962 D5966 D5964 SYNCHRONISATION SWITCH FP5950 Z5950 D5950 D5953 D5954 D5957 RL5950 JK5950 F1 L5950 MAIN SIGNAL LINE FM SIGNAL LINE CD SIGNAL LINE AUX IPOD SIGNAL LINE AM SIGNAL LINE FM AM XM SIGNAL LINE CD DA AUDIO VIDEO SIGNAL LINE VIDOE SIGNAL LINE SIGNAL LINES Indicates the Pin No of Right Channel NOTE Signal L...

Page 62: ...SA AK250PL 62 ...

Page 63: ...est switch VR6491 VR Volume jog Importance safety notice Components identified by mark have special characteristics important for safety Furthermore special parts which have purposes of fire retardant resistors high quality sound capacitors low noise resistors etc are used When replacing any of components be sure to use only manufacturer s specified parts shown in the parts list Resistor Unit of r...

Page 64: ...64 SA AK250PL ...

Page 65: ...LD 7 5V MCLK MDATA RST STAT BLKCK PGND 3 3V ST_IN TX LD SW DGND ST_CLK AGND AGND DGND ST_REQ RESET_SW LCH OUT RCH OUT LOADING A9 A11 TRP TRVP BA1 A0 A2 A4 A6 A8 A7 A5 A3 A1 A10 NWE BA0 PC NRAS NCAS PRAMVDD15 PRAMVDD33 PRAMVSS33 SPOUT F A B E GND T F F T LPD VREF LD GND GND GUARD GND GUARD LD VCC 6 5 8 9 10 12 11 7 2 1 4 3 14 13 16 15 PVCC1 D4 D1 PVCC2 NC NC NC NC NC NC NC IN2 NC PC1 PC2 IN1 GND PG...

Page 66: ...72 GND VCC OUT C2301 C2194 R2193 R2194 C2173 C2174 R2173 C2171 R2172 C2172 C2192 C2193 R2674 VOLTAGE REGULATOR CN2803 R2672 C2311 C2411 R2412 R2312 R2355 270K C2342 1u R2510 R2271 R2511 C2585 D2583 C2583 R2584 R2586 R2587 R2585 C2584 C2588 C2273 C2274 C2402 C2401 C2272 R2273 R2509 C2511 R2512 C2701 R2411 C2442 R2413 Q2411 R2313 R2311 Q2311 R2701 R2702 C2242 C2142 1K 16V100 1u 3 3k 1u 1 68K 50V22 5...

Page 67: ...4 R2326 R2328 C2943 CN2809 R2316 R2317 C2325 R2431 C2433 R2321 R2318 R2435 R2329 C2321 Q2317 C2443 R2456 R2356 C2343 R2416 R2418 Q2417 R2417 0 10K 15k 50V2 2 2 2k 10k 50V1 0 1 0 100k 1 C2431 10k 10K 1 0 47u 180k 180k 0 47u 2 2k 100k 10k A_GND T_GND MUTE_D_AMP 15V FAN F_HOP A_GND1 A_GND2 W1 7 9 10 8 4 5 1 3 2 6 12 11 Q2317 Q2417 B1ABCF000176 MUTING SWITCH C2329 4700P R2330 3 9k C2330 0 22 R2436 3 9...

Page 68: ...u 16V220 SWITCH 3 3k 3 3k 1000P 10k 1K 1K 4 7k 1000P 47k R2829 47k R2831 47k R2832 47k 100 10K 1K 0 0 12k G0C101JA0052 2 7k 2 7k 100p 100p 12k 1000p 1000p 1000p 1000p 100 10k 4 7K 4 7K 4 7K 100 100 100 100 100 560P 560P 100P 100 100 100 RMT BLKCK CNVSS H BASS_LED VCC A_GND FL_CLK VREF FL_DA FL_CS ASP_CLK PLL_CLK D1 D0 ASP_DA UP_SENSOR U_GND VOL_LED DMT CE BOTTOM_SW PHOTO MTR 58 PL REC 59 VCC SYNC ...

Page 69: ...22k 470 1u 0 1u 220 1M 3 3 0 1u 27 100 56k 6 3V100 5 6K 10K 10k 820k 0 1u TO FAN 4 7K 100P MOT_12V PA_IN_L MIC A_GND 15V A_GND HP_L MOT_12V U_GND A_GND CHG_CW CLOSE_SW OPEN_SW A_GND UP_SENSOR PLAY_SW 3 3V OME_SW CD8 5V ST_SW CHG_CCW BOTTOM_SW CHG_PLR 88 HP_R 3 3V U_GND U_GND FL_CLK H BASS_LED FL_CS FL_DA KEY2 RMT VREF PCONT SYS6V SYNC KEY1 U_GND KEY3 PA_IN_R MOT_12V A_GND V_JOG_A VOL_LED A_GND VRE...

Page 70: ..._LED FL_CLK VREF RMT PCONT SYNC P_GND FL_DOUT VOL_LED MOT12V HP_R PA_IN_L 3 3V HP_GND GND2 SYS6V SYNC GND3 PCONT SYS6V VP_A PCONT HP_L FL2 FL1 SG5 SG4 SG7 SG6 PA_IN_R PA_SW PA_IN_L HP_SW GND2 HP_R HP_L HP_GND KEY1 SG16 VREF GR12 SG15 SG16 GR10 GR12 GR11 SG15 VP_A SG12 SG14 SG13 SG10 SG11 PA_GND GND2 GR6 GR5 GR8 GR9 GR7 GND2 FL_CLK FL_CS FL_DOUT GND2 FL_RST VREF KEY2 HP_SW GR2 GR4 GR3 KEY1_IN PA_SW...

Page 71: ...1 MODE S972 HALF S975 REC_INH_F IC971 CNB13030R2AU PHOTO INTERUPTOR PL MODE HALF PL PL_GND PHOTO_T RECINH_F VREF VREF CR02 COM B A 1 3 2 4 3 1 2 5 3 2 1 4 10 8 7 6 9 R6303 R6302 S6302 R6304 S6303 S6301 R6399 R6106 R6491 R6108 S6108 S6106 R6107 R6305 S6304 R6494 R6307 S6309 S6307 S6308 R6308 R6309 R6310 R6306 S6305 S6306 C6491 C6492 R6492 KEY3_2 KEY3 MOT10V VJOG_A VOL_LED STOP DEMO KEY1 HARD BASS K...

Page 72: ...47u 1K 100 100 1000P 5 6K 1K 1K 0 1u 220P 0 015u 1M 330P 0 47u 0 47u 0 1u 1 1 0 1u 330P 5 6K 1000P 0 47u R5234 120K R5230 120K R5233 82K R5231 120K R5232 27K C5230 0 1 0 47u 22 0 0 1u C5427 0 47 56K 220K 35V1000 35V1000 RCH LCH O P_R_GND O P_GND O P_L_GND I P_GND I P_GND OUT1 MODE VSSD OUT2 SGND BOOT1 VDDP1 VSSP2 STABI VSSA1 IN2 IN2 VDDA1 BOOT2 VDDP2 VSSP1 IN1 OSC IN1 VDDA1 PROT SGND VSSA1 2 4 3 1...

Page 73: ...OR12V CD3 3V PCONT 5V AGND 15V PCONT MOTOR12V 0 1u 100V10u 4 7 150K REGULATOR IC 2 2 35V1000 1K 10K 100V10 0 1u 63V1000u 0 1u 2 2K 35V1000 100P 100P 2 2 2 2 50V33 330 0 01u 10K 1 2K 2 2 0 01u 470 25V100u 0 25V100 25V100u 560 22K 0 1u 10K 1K 47 63V1000u 1 8 10K 0 1u 0 1u 0 1u 6 3V100 6 3V100 VCC1 VCC1 DGND AGND AGND ACIN SUB B VCC1 VCC1 5 6V GND CTRL VCC 3 3V ASPGND LOW_LIN DC_DET XM5 3V 9V mUTE F_...

Page 74: ...1334 22K R1333 4 7 R1327 4 7K R1335 1 5K Q1317 B1ABGC000005 BEATPROOF LEVEL SWITCH R1337 10K Q1312 B1ABCF000011 SWITCH C1314 2200P C1317 1000P C1312 3300P C1318 0 047 R1330 4 7 Q1309 Q1310 B1AAGC000006 BIAS SWITCH Q1309 C1316 1000P RECH1 L1302 G0C470JA0052 D1301 B0ACCK000005 C1319 16V100 R1329 4 7K R1328 15K Q1310 Q1317 C1321 4700P C1202 470P C1201 50V1 C1203 16V100 C1221 1000P R1202 1 5K C1207 15...

Page 75: ...C5940 D5960 C5956 FP5920 FP5940 C5957 R5961 R5960 C5958 R5963 D5966 C5951 D5962 D5964 R5952 FP5950 R5951 R5950 D5956 C5959 D5954 D5950 D5951 D5957 D5955 D5961 D5952 D5953 C5955 C5960 C5950 D5963 R5953 C5954 C5961 C5962 Q5952 10V47 0 01u 10K 10K 4 7 47 7A 7A 10 150 4 7K 0 01u 82 0 01u 4 7K 3 3K 3 3M 0 01u 22u 0 1u 150 0 01 10V220 10V220 B0AAFK000004 B1AACF000064 K6B1AEA00015 ERZV10V511CS PCONT SWIT...

Page 76: ...SA AK250PL 76 ...

Page 77: ...20 Printed Circuit Board Note Circuit board diagrams may be modified at any time with the development of new technology SA AK250PL 77 ...

Page 78: ... IC971 J11 SOLENOID 3 2 1 4 PL W1904 W1932 W1902 W1931 W1903 W1933 W1907 W1905 W1947 W1946 W1942 W1945 W1951 W1935 W1909 W1977 W1912 W1921 W1917 W1916 W1911 W1913 W1975 W1948 W1934 W1914 W1915 W1906 W1920 W1976 W1941 W1908 W1918 CP1301 TO R P HEAD C1103 C1106 C1109 C1304 C1201 C1203 C1319 C1320 C1324 C1311 C1305 C1206 C1209 C1301 C1208 C1310 C1101 C1308 Q1309 Q1316 Q1315 L1302 R1330 R1333 R1309 W1...

Page 79: ...3 W424 W427 W121 W239 W362 W288 W419 W238 W650 W627 W652 W212 W628 W660 W211 W155 W366 W365 W154 W662 W299 W636 W298 W372 W371 W659 W370 W429 W634 W657 W615 W648 R2937 R2936 W625 W616 W637 W632 W649 W611 W425 W127 W210 W209 W301 W213 W214 W215 W346 W347 W405 W447 W420 W446 W363 W202 C4000 W203 W126 W465 W341 W630 W640 C4001 W676 R2802 R2801 R2586 W609 R3211 R3212 R3213 W601 W643 W602 C2874 R2873 R...

Page 80: ...7 W845 W876 W843 W847 W848 W811 W814 W813 W673 W852 W853 W854 W882 W880 W881 W851 W816 W855 W856 W892 W893 W858 W860 W857 W859 W818 9 10 2 4 5 6 7 8 3 C6551 R6204 R6206 R6207 W905 R6605 C6603 C6602 C6604 R6604 C6601 W914 D6301 R6763 R6753 R6754 R6458 C6753 R6751 C6751 C6752 W1001 R6102 R6105 R6103 R6104 R6209 R6208 R6493 R6203 C6553 SENSOR HEADPHONE MUSIC PORT W805 W677 W800 W802 W832 W676 W1015 W...

Page 81: ...S6307 R6307 W951 S6308 MANUAL EQ S6309 S6108 HARD BASS S6306 R6306 REC W950 W952 W953 W967 W966 W954 W956 W959 W968 W971 W957 W958 W960 S6305 EXT_IN S6304 R6304 TUNER FM AM JW6001 W955 S6303 TAPE S6302 CD R6106 R6494 R6399 R6308 R6310 R6309 R6107 R6305 C6492 C6491 R6492 R6491 R6302 R6303 R6108 M EQ M EQ VR6491 VOLUME W969 W756 W750 1 1 2 3 2 4 5 6 7 8 9 3 10 SA AK250PL 81 ...

Page 82: ...01 E5101 IC5301 W737 C5115 W671 W733 D5101 C5101 R5101 C5344 W735 C5328 C5329 C5326 C5325 C5324 R5306 W732 Q5110 W743 W704 W756 L5101 C5312 W690 C5330 C5313 C5332 R5138 W639 W739 C5305 W682 R5304 R5303 C5303 R5302 C5302 C5301 R5301 C5337 W741 R5139 W740 W752 W718 L5102 W641 W705 C5336 R5127 R5126 C5110 C5109 W696 W643 D5152 R5147 W633 R5132 Q5113 C5159 R5133 D5103 D5105 W634 W691 R5136 R5137 W616 ...

Page 83: ... W5923 W5922 W5906 W5904 CN5950 W5920 W5907 W5908 W5902 C5940 W5930 W5901 C5956 D5959 D5958 C5955 D5951 D5953 C5920 W5903 FP5920 7A FP5940 7A W5909 C5958 C5957 D5960 W5905 R5960 Q5953 R5961 D5966 C5954 C5952 R5963 D5964 C5953 D5952 D5950 C5950 D5956 D5957 D5955 D5954 C5959 FP5950 4A W5910 C5960 D5965 R5950 SUB TRANSFORMER RL5950 Z5950 FC2 FC1 F1 125V 3 15A K5973 K5911 JK5950 W5914 W5915 W5916 W591...

Page 84: ...SA AK250PL 84 ...

Page 85: ...E2 A C a C athode Anode MAZ80560ML E C B E C B 1 4 8 5 C0AABB000125 B1AACF000064 2SC3940A0A B1GACFGA0002 E C B E C B B0BA01100004 B0BA01500003 A C a C athode Anode B0BA6R800008 B0BA02400030 B0BA5R000004 AN7326K 26P 1 C0CBAHG00011 B1ABCF000011 B1GBCFGH0001 B1GDCFJJ0002 E C B B1GDCFGH0002 KRC101STA B C E 2SD09650RA B1AAGC000006 B C E B0BC5R600003 Cathode Ca A Anode C0DBZGC00067 1 3 4 5 2 Ca A Cathod...

Page 86: ...RF Feedback Signal I P 51 ARFIN I Audio RF Signal I P Pin No Mark I O Function 52 DSLF Loop Filter Terminal For DSL 53 IREF I Reference I P 54 PLLF PLL Loop Filter Terminal Phase Compare 55 PLLF0 PLL Loop Filter Terminal Speed Compare 56 OUTL O Audio O P LCH 57 AVSS1 GND 58 AVDD1 Analog Power Supply Voltage 1 59 OUTR O Audio O P RCH 60 DVSS3 GND3 Digital Circuit 61 NSRVMONON O Servo Motor O P Enab...

Page 87: ...unction 15 D3 O Motor Drive 3 reverse action output 16 D3 O Motor Drive 3 forward action output 17 D4 O Motor Drive 4 reverse action output 18 D4 O Motor Drive 4 forward action output 19 PVCC2 Power Supply 2 for Driver 20 PGND2 Ground Connection 2 for Driver 21 24 N C No Connection 25 VCC Power Supply terminal 26 VREF Reference Voltage Input 27 IN4 I Motor Driver 4 Input 28 IN3 I Motor Driver 3 In...

Page 88: ...W O CRS1 motor CCW 86 ST_SW I Stock switch for CRS1 87 PLAY_SW I Play switch for CRS1 88 PLUNGER O Plunger for CRS1 89 REG Region Setting 90 VOL_JOG I Volume jog 91 D PORT_ PCONT No connection 92 KEY3 I Key 3 Input 93 KEY2 I Key 2 Input 94 KEY1 I Key 1 Input 95 DECK_AD1 I Deck AD input 1 96 AVSS Analog Power Supply Input Connect to GND 97 DECK_AD2 I Deck AD input 2 98 VREF Reference for A D 5V 99 ...

Page 89: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK250PL 89 ...

Page 90: ...SA AK250PL 90 ...

Page 91: ...23 2 Deck Mechanism Parts Location RAA4403 S SA AK250PL 91 ...

Page 92: ...23 3 Packaging SA AK250PL 92 ...

Page 93: ... M 120 RMM0131 1 BRAKE ROD M 121 RMM0133 1 EJECT ROD M 122 RMQ0519 REEL HUB M 123 RMS0398 1 MOVING CORE M 124 RXQ0470 2 PLUNGER ASS Y M 125 RMC0061 PACK SPRING M 126 RXF0061 1 FLYWHEEL F ASS Y M 128 RXG0040 FF RELAY GEAR ASS Y M 129 RMK0283A 2 SUB CHASSIS M 130 RXL0124 PINCH ROLLER F ASS Y M 130 1 RMB0401 PINCH ARM SPRING F M 132 RXL0126 WINDING ARM ASS Y M 133 RXQ0412 3 HEAD PANEL ASS Y M 133 1 R...

Page 94: ...NSISTOR M Q2943 B1ABCF000176 TRANSISTOR M Q2948 B1ABCF000176 TRANSISTOR M Ref No Part No Part Name Description Remarks Q2949 B1ABCF000176 TRANSISTOR M Q3601 2SC3940A0A TRANSISTOR M Q5101 B1DEGM000026 TRANSISTOR M Q5102 B1DEGM000026 TRANSISTOR M Q5103 B1ABCF000176 TRANSISTOR M Q5104 B1ABCF000176 TRANSISTOR M Q5108 B1ABCF000176 TRANSISTOR M Q5109 2SB0709AHL TRANSISTOR M Q5110 B1GACFGA0002 TRANSISTOR...

Page 95: ...1 K1KA10AA0031 10P CONNECTOR M CN5102 K1KA12AA0031 12P CONNECTOR M CN5103 K1KA12AA0031 12P CONNECTOR M CN5950 K1KA09AA0319 9P CONNECTOR M CN5951 K1KA09AA0193 9P CONNECTOR M CN6601 K1MN30AA0004 30P CONNECTOR M CN7001 K1MN16B00154 16P CONNECTOR M CN7002 K1MN22BA0005 22P CONNECTOR M CP1301 K1MY05AA0043 5P CONNECTOR M CP1902 K1KA09BA0153 9P CONNECTOR M Ref No Part No Part Name Description Remarks CS97...

Page 96: ...M W644 ERJ6GEY0R00V CHIP JUMPER M Ref No Part No Part Name Description Remarks W645 ERJ6GEY0R00V CHIP JUMPER M W646 ERJ6GEY0R00V CHIP JUMPER M W647 ERJ6GEY0R00V CHIP JUMPER M W648 ERJ6GEY0R00V CHIP JUMPER M W649 ERJ6GEY0R00V CHIP JUMPER M W650 ERJ6GEY0R00V CHIP JUMPER M W651 ERJ3GEY0R00V CHIP JUMPER M W652 ERJ6GEY0R00V CHIP JUMPER M W653 ERJ6GEY0R00V CHIP JUMPER M W654 ERJ6GEY0R00V CHIP JUMPER M W...

Page 97: ...6W M R1205 D0GB222JA007 2 2K 1 16W M R1206 D0GB104JA008 100K 1 16W M R1207 D0GB102JA008 1K 1 16W M R1209 D0GB102JA008 1K 1 16W M R1210 D0GB333JA008 33K 1 16W M R1302 D0GB471JA007 470 1 16W M R1303 D0GB475JA008 4 7M 1 16W M R1304 D0GB223JA007 22K 1 16W M R1305 D0GB103JA008 10K 1 16W M R1309 D0AF471JA039 470 1 4W M R1313 D0GB103JA008 10K 1 16W M R1314 D0GB102JA008 1K 1 16W M R1318 D0GB103JA008 10K 1...

Page 98: ...GB103JA008 10K 1 16W M R2673 D0GB682JA008 6 8K 1 16W M R2674 D0GB473JA041 47K 1 16W M Ref No Part No Part Name Description Remarks R2676 D0GBR00JA008 0 1 16W M R2677 ERJ6GEYJ271V 270 1 10W M R2701 D0GB102JA008 1K 1 16W M R2702 D0GB102JA008 1K 1 16W M R2703 D0GB224JA007 220K 1 16W M R2704 D0GB224JA007 220K 1 16W M R2705 D0GB332JA007 3 3K 1 16W M R2706 D0GB332JA007 3 3K 1 16W M R2801 D0GB101JA007 10...

Page 99: ...ERC12UGK335D 3 3M 1 2W M R5951 D0AE332JA048 3 3K 1 4W M R5952 D0AE472JA048 4 7K 1 4W M Ref No Part No Part Name Description Remarks R5953 D0AE151JA048 150 1 4W M R5957 D0AE103JA048 10K 1 4W M R5958 D0AE103JA048 10K 1 4W M R5960 D0AE472JA048 4 7K 1 4W M R5961 D0AE151JA048 150 1 4W M R5963 D0AF820JA039 82 1 4W M R6102 D0GB102JA008 1K 1 16W M R6103 D0GB102JA008 1K 1 16W M R6104 D0GB122JA008 1 2K 1 16...

Page 100: ...P 50V M C2181 F1H1A105A025 1 10V M C2182 F1H1A334A036 0 33 10V M Ref No Part No Part Name Description Remarks C2183 ECJ1VB1C224K 0 22 16V M C2191 F2A1H3R3A234 3 3 50V M C2192 F1H1C104A041 0 1 16V M C2193 F1H1A105A025 1 10V M C2194 ECJ1VB1A124K 0 12 10V M C2195 F1H1A474A025 0 47 10V M C2212 ECJ1VB1C105K 1 16V M C2213 F1H1H682A219 6800P 50V M C2221 F1H1H332A013 3300P 50V M C2222 ECJ1VB1C105K 1 16V M...

Page 101: ...5208 ECA0JM221B 220 6 3V M C5210 F1H1H180A230 18P 50V M C5230 ECJ1VB1H104K 0 1 50V M Ref No Part No Part Name Description Remarks C5301 ECJ1VB1A474K 0 47 10V M C5302 F1H1H331A013 330P 50V M C5303 ECJ1VB1A474K 0 47 10V M C5305 F1H1H331A013 330P 50V M C5308 ECJ1VB1H104K 0 1 50V M C5309 ECJ1VB1H104K 0 1 50V M C5310 F1K2A1040006 0 1 100V M C5311 F1H1H221A748 220P 50V M C5312 F1K1V105A003 1 35V M C5313...

Page 102: ...6 F1H1H102A219 1000P 50V M C7227 ECA1HAK010XI 1 50V M C7228 ECA1HAK010XI 1 50V M C7230 ECJ1VB1C104K 0 1 16V M C7231 F2A0J221A200 220 6 3V M C7232 F2A0J221A200 220 6 3V M C7233 F1H1C104A008 0 1 16V M C7234 ECJ1VB1C104K 0 1 16V M C7235 F2A1C100A133 10 16V M C7241 F1H1H102A219 1000P 50V M C7243 F1H1C104A008 0 1 16V M C7244 ECJ1VB1C153K 0 015 16V M C7253 F1H1H471A219 470P 50V M C7263 ECJ1VB1C104K 0 1 ...

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