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Panasonic SA-AK750E, Service Manual, Page: 32 / 106

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Panasonic SA-AK750E Service Manual Download Page 32

Step 1

Remove the 5 screws on Power P.C.B..

Step 2

Detach cable (CN5950) at Transformer P.C.B..

Step 3

Remove Power P.C.B..

Note:

Insulate the Power P.C.B. with insulation material to avoid short
circuit.

    

·

    

Replacement of Power Amp IC (IC5301).

Step 1

Flip the Power P.C.B. over and desolder the pins.

Step 2

Remove 1 screw and IC clip.

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.)

    

·

    

Replacement of IC5501.

Step 1

Flip the Power P.C.B. over and desolder the pins of

IC5501.

Step 2

Twist the heat sink leg as arrow shown.

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 (Step 1) - (Step 4) of Item 10.6

    

·

    

Follow the (Step 1) - (Step 3) of Item 10.7

32

SA-AK750E / SA-AK750EB / SA-AK750EG

Summary of Contents for SA-AK750E

Page 1: ... AK750E SA AK750EB SA AK750EG Colour K Black Type Music Port input jack 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...

Page 2: ...pply For E EG only AC 230 V 50Hz For EB only AC 230 to 240 V 50Hz Power consumption 139 W Power consumption in standby mode 0 5 W Dimensions W x H x D 250 x 330 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 AK750 E Music center SA AK750 E Speaker SB AK750 P Subwoofer SB WAK750 P SC AK750 EB Music center SA AK750 EB Speake...

Page 3: ...s 49 14 1 Cassette Deck Section 49 15 Voltage and Waveform Chart 51 15 1 USB P C B 51 15 2 CD Servo P C B 51 15 3 Power P C B Transformer P C B 52 15 4 Panel P C B 52 15 5 Main P C B 53 15 6 Deck P C B 54 15 7 Waveform Chart 54 16 Wiring Connection Diagram 55 17 Block Diagram 57 17 1 CD Servo Diagram 57 17 2 Deck Deck Mechanism Diagram 58 17 3 Main Diagram 59 17 4 Panel Diagram 61 17 5 Power Diagr...

Page 4: ...t 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 ground such as a water pipe as shown in Figure 1 3 Use an AC voltm...

Page 5: ...2 Caution for AC Mains Lead 1 3 Before repair and adjustment Disconnect AC power discharge Power Capacitors C5101 C5104 C5171 C5172 C5920 C5940 and C5950 through a 10Ω 5W 5 SA AK750E SA AK750EB SA AK750EG ...

Page 6: ... Note When the protection circuitry functions the unit will not operate unless the power is first turned off and then on again 1 5 Safety Part Information Safety Parts List There are special components used in this equipment which are important for safety These parts are marked by in the Schematic Diagrams Replacement Parts List It is essential that these critical parts should be replaced with man...

Page 7: ...se only a grounded tip soldering iron to solder or unsolder ES devices 4 Use only an anti static solder remover device Some solder removal devices not classified as anti static ESD protected can generate electrical charge to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its...

Page 8: ...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 where the trav...

Page 9: ...9 SA AK750E SA AK750EB SA AK750EG ...

Page 10: ...eses Produkt enthält eine Laserdiode Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit abgestrahlt Wellenlänge 780nm Maximale Strahlungsleistung der Lasereinheit 100 µW VDE Die Strahlung an der Lasereinheit ist ungefährlich wenn folgende Punkte beachtet werden 1 Die Lasereinheit nicht zerlegen da die Strahlung an der freigelegten Laserdiode gefährlich ist 2 Den werkse...

Page 11: ...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 the melting point of t...

Page 12: ...6 Accessories Remote Control FM Antenna Wire AC Cord For E EG only AC Cord For EB only AM Loop Antenna 12 SA AK750E SA AK750EB SA AK750EG ...

Page 13: ...7 Operating Procedures 7 1 Main Unit Key Buttons Operations 7 2 Remote Control Key Buttons Operations 13 SA AK750E SA AK750EB SA AK750EG ...

Page 14: ...14 SA AK750E SA AK750EB SA AK750EG ...

Page 15: ...ew Features 8 1 Using the Music Port This feature enables you to enjoy music from a portable audio equipment With reference to page 15 of the operating instruction manual 15 SA AK750E SA AK750EB SA AK750EG ...

Page 16: ...8 2 Connecting and Playing a USB Mass Storage Class Device With reference to page 16 of the operating instruction manual 16 SA AK750E SA AK750EB SA AK750EG ...

Page 17: ...tion 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 Inspection Refer to the section 9 2 for more information 7 Volume 50 Setting check 8 Volume 41 Setting check 9 Volume 35 Setting check Volume 0 Setting check PRESET EQ EQ...

Page 18: ... for FLOCK TLOCK and CLVS FLOCK Focus Lock TLOCK Traverse Lock CLVS Constant Linear Velocity Speed In CD Test Mode 1 Press 0 button on the remote control To exit press button on main unit or remote control CD Changer Reliability Test CRS1 To determine the reliability of CD Changer Unit For more information refer to section 9 3 In Self Diagnostic Mode 1 Select for CD mode 2 Press button To exit pre...

Page 19: ...tep 1 Enter into Doctor mode for more information refer to section 9 2 on the key operation to enter into this mode Step 2 By pressing STOP button on main unit followed by 4 and 7 on remote control Check for firmware version and EEPROM checksum When entering into DOCTOR MODE the firmware version and checksum data of EEPROM if applicable will appear on FL display Below is the information on the EEP...

Page 20: ...o change which would be updated accordingly ROM correction checksum refers to the HEX code that is displayed upon key buttons pressed if an EEPROM is loaded in the unit 9 3 Reliability Test Mode CRS1 Mechanism Below is the process flow chart of ageing for the CD changer unit CRS1 20 SA AK750E SA AK750EB SA AK750EG ...

Page 21: ...efer Section 9 2 provides information on any problems 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 21 SA AK750E SA AK750EB SA AK750EG ...

Page 22: ...rvo LSI IC and microprocessor IC When set to CD mode the sense signal does not turn Low a fail safe time after system command transmission is sent For CD unit For Traverse Press on main unit for next error IHMS Cam gear abnormality Cam gear does not rotate to HOME position For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error ICSL Cam gear gear units abnormal Cam gear does not r...

Page 23: ...cally close all trays after the time out by the microprocessor During this time when it fails the error code will appear For CD changer unit CRS1 Press SINGLE CHANGE on main unit for next error F2NG Fail safe mode For open close tray unit s When the tray close operation is performed it fails to close It will automatically open all trays after the time out by the microprocessor During this time whe...

Page 24: ...ed 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 _ _ _ _ _ U D D SINGLE CHANGE 3 To clear the error code memory In CRS1 Self Diagnostic mode long press SINGLE CHANGE key 2s or more 24 SA ...

Page 25: ...ment 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 operation for CD Changer Unit ...

Page 26: ...ollowing 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 26 SA AK750E SA AK750EB SA AK750EG ...

Page 27: ...10 3 Main Parts Location 27 SA AK750E SA AK750EB SA AK750EG ...

Page 28: ...op cabinet backwards to release catches Step 5 Remove top cabinet Step 1 Remove 1 screw at rear panel Step 2 Detach the FFC cables CN2801 CN2805 at Main P C B Step 3 Release the claws outwards on both ends 10 4 Disassembly of Top Cabinet 10 5 Disassembly of CD Changer Unit CRS1 Follow the Step 1 Step 5 of Item 10 4 28 SA AK750E SA AK750EB SA AK750EG ...

Page 29: ...p 6 Remove the Mecha Chassis Note For disassembly assembly of traverse unit please refer to section 10 16 of this service manual Please refer to original Service Manual for the Disassembly and Assembly of the CD Changer Unit CRS1 10 6 Disassembly of Rear Panel Follow the Step 1 Step 5 of Item 10 4 29 SA AK750E SA AK750EB SA AK750EG ...

Page 30: ...Step 2 Detach cable CN2810 at Main P C B Step 3 Detach FFC cables CN2801 CN2805 at Main P C B Step 4 Remove rear panel 30 SA AK750E SA AK750EB SA AK750EG ...

Page 31: ...r 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 AK750E SA AK750EB SA AK750...

Page 32: ...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 Replacement of IC5501 Step 1 Flip the Power P C B over and desolder the pins of IC5501 Step 2 Twist the heat sink leg as arrow shown 10 9 Disassembly of Power P C B Follow the Step 1 Step 5 of Item 10 4 Follow the Ste...

Page 33: ...ach cable CN5951 at Transformer P C B Step 3 Bent the front panel unit slightly forward as arrow shown Caution During assembly of the heat sink sub assembly with IC5501 all soldering points is touch up to avoid dry joints Step 4 Release 2 claws outwards 10 10 Disassembly of Front Panel Unit Follow the Step 1 Step 5 of Item 10 4 Follow the Step 1 Step 5 of Item 10 5 33 SA AK750E SA AK750EB SA AK750...

Page 34: ... 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 5 Follow the Step 1 Step 5 of Item 10 10 34 SA AK750E SA AK...

Page 35: ...ep 2 Remove Lid Note Do not misplace the spring 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 USB 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 35 SA AK750E SA AK750EB SA AK750EG ...

Page 36: ...ve it in the direction of arrow 2 Note For disassembly of parts for deck mechanism unit refer to Section 10 17 10 14 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 15 Disassembly of Deck 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 ...

Page 37: ... position for CRS1 Service Manual order no MD0509368C0 Step 1 Press and hold the plunger lever and rotate the gear as arrows shown until it stop 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 16 Disassembly of Traverse Unit Follow the Step 1 Step 5 of Item 10 4 Follow the Ste...

Page 38: ... Push the traverse slide plate as arrow shown to lock the traverse unit 10 17 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 38 SA AK750E SA AK750EB SA AK750EG ...

Page 39: ...10 17 1 Replacement of Pinch Roller and Head Block 39 SA AK750E SA AK750EB SA AK750EG ...

Page 40: ...10 17 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 40 SA AK750E SA AK750EB SA AK750EG ...

Page 41: ...e Deck Mechanism P C B 10 18 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 14 Follow the Step 1 Step 3 of Item 10 15 41 SA AK750E SA AK750EB SA AK750EG ...

Page 42: ...n the direction of the arrow to remove it Step 2 Remove spring and push the cassette lid in the direction of arrows 10 19 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 14 10 20 Rectification for tape jam problem Follow the Step 1 Step 5 of Item 10 4 42 SA AK750E SA A...

Page 43: ...Step 2 Push the lever upward and open the cassette lid Remove the cassette tape Note Follow 10 19 Disassembly for cassette lid Step1 to Step 3 Remove the cassette tape 43 SA AK750E SA AK750EB SA AK750EG ...

Page 44: ...vice 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 44 SA AK750E SA AK750EB SA AK750EG ...

Page 45: ...12 2 Checking and Repairing of Transformer P C B 12 3 Checking and Repairing of Panel Deck Deck Mechanism P C B 45 SA AK750E SA AK750EB SA AK750EG ...

Page 46: ...12 4 Checking and Repairing of Power P C B 46 SA AK750E SA AK750EB SA AK750EG ...

Page 47: ...t 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 Parts of Deck ...

Page 48: ...48 SA AK750E SA AK750EB SA AK750EG ...

Page 49: ...4 screws from the mechanism unit to disassemble under 10 14 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 the motor...

Page 50: ...ng 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 within the...

Page 51: ... 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 USB P C B 15 2 CD Servo P C B 51 SA AK750E SA AK750EB SA AK750EG ...

Page 52: ...15 3 Power P C B Transformer P C B 15 4 Panel P C B 52 SA AK750E SA AK750EB SA AK750EG ...

Page 53: ...15 5 Main P C B 53 SA AK750E SA AK750EB SA AK750EG ...

Page 54: ...15 6 Deck P C B 15 7 Waveform Chart 54 SA AK750E SA AK750EB SA AK750EG ...

Page 55: ...SB P C B SOLDER SIDE SIDE B PbF PbF PbF PbF PbF PbF 1 21 2 20 9 1 CN2810 2 1 CN2801 21 1 22 2 CN3200 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 JK5101 JK5102 CN5102 1 12 CN5103 1 12 JW6001 VR6...

Page 56: ...56 SA AK750E SA AK750EB SA AK750EG ...

Page 57: ... 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 7 11 15 16 17 NWE NCAS 8 9 63 64 62 NRAS S...

Page 58: ...ANALOG SWITCH IC971 CNB13030R2AU PHOTO INTERUPTOR L1301 Q1317 SWITCH Q1316 SWITCH Q1314 SWITCH 9V Q1315 SWITCH Q1317 SWITCH Q1304 SWITCH Q1101 MUTE SWITCH Q1304 Q1303 SWITCH Q1309 Q1310 BIAS SWITCH 9 22 15 8 1 3 5 2 4 19 4 16 17 6 DECK 2 HEAD RCH DECK 2 ERASE HEAD DECK 1 B HEAD LCH MUTE SWITCH Q1302 MUTE SWITCH DRIVER DECK MECHANISM CIRCUIT TO MAIN 1 2 TO MAIN 2 2 MAIN SIGNAL LINE FM SIGNAL LINE T...

Page 59: ...12 CN2809 CN5102 5 CN2809 CN5102 6 CN2809 CN5102 8 CN2809 CN5102 9 CN2809 CN5102 4 CN2809 CN5102 11 CN2803 CN1305 13 CN2803 CN1305 12 CN2806 CN6601 25 CN2806 CN6601 27 IC2810 1 2 C0ABBB000244 SMT OP AMP 2 3 1 IC2810 2 2 C0ABBB000244 SMT OP AMP 6 5 7 SWITCH SWITCH SWITCH DRIVER SWITCH DRIVER 1 IN L1 2 IN R1 5 IN L3 6 IN R3 7 IN L4 8 IN R4 56 OP IN 3 IN L2 4 IN R2 IC2803 C1BB00001121 AUDIO SOUND PRO...

Page 60: ...3601 3 CN3601 2 CN3601 1 CN2805 4 D2937 D2941 17 16 15 CN2801 CN7002 6 CN2801 CN7002 7 CN2801 CN7002 8 FROM USB CN3200 P901 18 CN3200 P901 13 CN3200 P901 15 CN3200 P901 16 CN3200 P901 17 CN3200 P901 8 CN3200 P901 10 CN3200 P901 11 CN3200 P901 5 CN3200 P901 19 33 SW LVL2 SW LVL1 26 27 1 91 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...

Page 61: ...601 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 H6555 CN5951 6 FL6602 A2BD00000171 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 QR6457 LED DRIVE S6201 S6207 JK6751 M PORT JK6551 HEADPHONE VREF VREF MO...

Page 62: ...ITAL AMP 2 3 IN1 OUT1 10 OUT2 14 VDDA1 20 VSSA1 18 IN1 21 22 IN2 IN2 23 MODE 1 OSC 1 OSC Q5153 IC5401 C1AA00000755 2CH DIGITAL AMP 2 3 IN1 IN1 21 22 IN2 IN2 23 MODE IC5201 C0JBAB000011 LOGIC IC5101 C0DAZYY00005 REGULATOR IC 1 10 2 3 6 5 4 2 5 6V VCC 3 3V CTRL 1 5 MODE SWITCH Q5201 FREQUENCY HOPPING SWITCH Q5202 D5130 D5126 FREQUENCY HOPPING SWITCH Q5154 MODE SWITCH Q5112 Q5114 CURRENT STABLISER 11...

Page 63: ...N3200 3 2 1 3 D D USB CONNECTOR P903 VBUS D5V TO MAIN 2 2 IC951 C0DBZYE00002 VOLTAGE REGULATOR 6 7 8 VDD CTRL FLAG 2 4 5 OUT IC900 MNZSFB5KJM1 USB CONTROLLER IC 12 11 MMOD1 15 NRST 14 CD_RST 8 CD_MLD 64 STIN 61 STREQ 54 TERR 51 STCLK 59 CD_DATA 58 CD_STAT 57 CD_CLK 56 48 47 VERR 50 46 OSC0 OSC1 4 USBD 6 USBD X900 I2C_REQ WR_START I2C_CLK WR_END I2C_DATA ERROR TO POWER TO PANEL T5950 T5951 MAIN TRA...

Page 64: ...SA AK750E SA AK750EB SA AK750EG 64 ...

Page 65: ...R6491 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 resistance is...

Page 66: ...66 SA AK750E SA AK750EB SA AK750EG ...

Page 67: ...A5948FPE2 4 CH DRIVE IC MLD 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 ...

Page 68: ... R2194 C2173 C2174 R2173 C2171 R2172 C2172 C2192 C2193 D2503 R2674 VOLTAGE REGULATOR CN2803 R2103 R2672 C2501 R2203 C2311 C2411 R2412 R2312 R2355 270K C2342 1u R2508 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 1K 16V100 1u 3 3k 1u 1 56K 50V22 50V22 3 3K 3 3K...

Page 69: ...0k 8 2K A_GND T_GND MUTE_D_AMP 15V FAN F_HOP 7 9 10 8 4 5 1 3 2 6 12 11 Q2317 Q2417 B1ABCF000176 MUTING SWITCH C3 C4 C5 C6 C7 C8 R2327 C2324 C2424 R2427 12k 1u 1u 12k Q2555 B1ABCF000176 SUBW MUTING SWITCH K3301 0 C2561 C2589 R2558 Q2554 D2551 D2552 B0BC2R4A0006 R2556 R2555 R2568 R2557 Q2553 R2567 1u 0 47u 3 3k 1k 1k 100k 1k 18k Q2553 Q2554 B1ABCF000176 SUBWOOFER LEVEL CONTROL SWITCH R2565 R2560 R2...

Page 70: ...K CD_STAT MDATA ST_CLK ST_REQ ST_IN USB_SCL IPOD_RXD V_E USB_SDA IPOD_TXD MLD 5V CD_RST 3 3V CD8 5V CD_3 3V U_GND A_GND STATUS BLKCK 3 3V MLD MCLK MDATA CLOSE_SW DECK_AD2 KEY1 VREF PA_IN_L PA_IN_R CD _RESET ST_SW CHG_CW PLAY_SW KEY2 CHG_PLR 88 A_GND RESTSW F_HOP DLINKDET1 LM_1 DLINKDET2 DECK_AD1 KEY3 V_JOG_A USB_REQ M_E A_GND A_GND VCC MDATA MLD STATUS MCLK RESTSW OPEN_SW CHG_CCW CD_RESET USB_REQ ...

Page 71: ..._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 VREF A_GND U_GND VCC U_GND 9V 3 3V lRESET CNVSS USB_RST USB_SCL_RXD USB_SDA_TXD XM_MUTE BUSY VCC U_GND 5V CD_3 3V IDCDET STANDBY MOT_12V PCONT P_GND MOT_12V F...

Page 72: ... BASS_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 ...

Page 73: ...E S971 MODE S972 HALF S975 REC_INH_F IC971 CNB13030R2AU PHOTO INTERUPTOR PL 5 3 2 1 4 10 8 7 6 9 R6303 R6302 S6302 R6304 S6303 K6101 K6104 D6461 B0BC8R100004 D6462 B3AEA0000074 D6464 D6464 D0GBR00JA008 R6457 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...

Page 74: ...330P 18P 5 6K 1000P 0 47u 100 10K 1K 100K 100P 100K 100P 470P 100K 0 47u 22 0 0 0 1u 0 1u 220P 0 1u 0 1u 0 1u 22 0 0 47u 0 1u 0 1u 0 1u 0 47u 0 1u 0 1u 0 22 0 1u 0 1u 0 015u 0 47u 0 015u 35V470 10 220P 220P 10 10 56K 220K 10K 35V470 220P 10 0 1u 0 1u 220P 1000P 5 6K 5 6K 1000P 5 6K 5 6K 0 1u 0 1u 0 47u 330P 330P 0 47u 0 47u 0 47u 35V470 35V470 O P_GND I P_GND LL RH RL LH O P_R_GND O P_GND O P_L_GN...

Page 75: ...ONT 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 LL LL LEFT HIGH RIGHT LOW RIGHT LOW RIGHT HIGH RIGHT HIGH LEFT LOW LEFT LOW LEFT HIGH VCC1 CHASIS GND RH RH NC RL RH RL RL VCC1 DGND AGND AGN...

Page 76: ...2K 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 1500P C1...

Page 77: ...5951 D5962 D5964 R5952 FP5950 R5951 D5956 C5959 D5954 D5950 D5951 D5957 D5955 D5961 D5952 D5953 C5955 C5960 C5950 C5954 Q5952 10V47 10K 10K 50V4 7 47 10A 10A 10 150 4 7K 0 01u 82 0 01u 4 7K 3 3K 0 01u 22u 0 1u 0 01 B0AAFK000004 B1AACF000064 K6B1AEA00015 ERZV10V511CS PCONT SWITCH ELF15N035AN B1AAKD000014 B0EAKP000134 B0EAKP000134 B0BA02400030 B0AAFK000004 B0AAFK000004 B0BA6R800008 B0EAKP000134 B0EA...

Page 78: ... 63 61 19 18 20 3 2 5 4 6 8 7 1 64 15 16 9 13 10 12 11 14 17 22 21 59 60 IC900 MNZSFB5KJM1 USB CONTROLLER IC 0 1 C913 DGND D5V NRST P01 P04 DGND P03 STCLK P91 SBIO P81 D8 P73 D5 P00 P02 P66 D0 P72 D4 P70 D2 P71 D3 P75 D7 D3 3V VSS P82 D9 DGND D1 8V VDDI VDD33 TERR P21 NCE0 VSS CD_CLK CD_STAT STREQ PD4 NCE2 CD_DATA P77 NRE VERR VDD5 I2C_REQ WR_START I2C_CLK WR_END I2C_DATA ERROR DGND P85 D12 P86 D1...

Page 79: ...20 Printed Circuit Board Note Circuit board diagrams may be modified at any time with the development of new technology SA AK750E SA AK750EB SA AK750EG 79 ...

Page 80: ...1 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 W1910 W1938...

Page 81: ... W225 W224 W228 W324 W142 W151 W140 W149 W147 W153 W152 W234 W137 W223 W145 W224 W373 W199 W516 W295 W296 W297 W152 W246 W320 W144 W434 W143 W133 W309 W105 W388 W157 W230 W227 W386 W384 W383 W381 W321 W620 W322 W379 W380 W469 W467 W428 W218 W422 W423 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...

Page 82: ...40 W1017 W1103 W802 W834 W1010 W874 W875 W877 W810 W913 W845 W878 W876 W843 W844 W847 W848 W811 W812 W846 W813 W814 W852 W853 W854 W882 W880 W881 W879 W816 W851 W815 W855 W856 W892 W893 W858 W860 W857 W859 W818 9 10 2 4 5 6 7 8 3 W908 W907 C6551 R6204 R6206 R6207 W924 W1011 W1012 W911 W909 W905 W906 R6605 C6603 C6602 C6604 R6604 C6601 W915 W914 D6635 W925 D6301 R6763 R6753 R6754 R6458 C6636 C6753 ...

Page 83: ... R6399 R6308 R6310 R6309 R6107 R6305 QR6457 K6101 R6457 K6104 C6492 C6491 R6492 R6491 R6302 R6303 R6108 IC900 L900 IC951 0101A 0101A C915 C906 X900 C953 P903 C904 C931 P901 0101A 0101A USB LB930 LB852 R955 C952 R954 LB952 R972 C913 LB932 LB933 LB934 LB935 LB840 LB843 LB841 LB936 LB938 C903 R914 LB845 LB846 LB848 R903 LB850 C901 C902 C905 C907 R901 C908 R904 R902 R971 C914 R952 R953 LB951 R951 R957...

Page 84: ...1047 W1048 W1051 W1060 W1052 W1049 W1062 W1061 CN5102 C5105 C5155 Q5104 IC5401 Q5103 E5103 K1000 C5132 W1010 X5202 X5201 C5103 H5104 W1009 W1081 W1096 W1100 D5121 W1085 W1083 W1088 K5005 K5006 K5008 W1089 K5007 C5435 C5438 K5003 W1068 K5004 JK5101 JK5102 K5002 K 5 0 0 1 W1097 W1090 W1091 C5527 C5529 C5528 C5335 C5425 C5343 C5426 C5334 C5428 C5429 R5505 R5506 C5524 C5427 R5406 W1067 W1066 W1065 W10...

Page 85: ...0 W5907 W5908 W5902 C5940 W5930 W5901 C5956 D5959 D5958 C5955 D5951 D5953 C5920 W5903 FP5920 10A FP5940 10A 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 SUB TRANSFORMER RL5950 Z5950 FC2 FC1 F1 250V T2 5AL JK5950 W5914 W5915 W5916 W5917 L5950 AC IN 230V 50Hz E EG 230V 240V 50Hz EB T595...

Page 86: ...SA AK750E SA AK750EB SA AK750EG 86 ...

Page 87: ... BA5948FPE2 A C a C athode Anode MAZ80560ML E C B E C B 1 4 8 5 C0AABB000125 B1AACF000064 2SC3940A0A B1GACFGA002 E C B E C B B0BA01500003 B0BA5R000004 B0BA01100004 A C a C athode Anode B0BA02600018 A C a C athode Anode B0BA6R800008 B0BA02400029 B0BA02400030 1 AN7326K 26P 1 C0CBAHG00011 C0GAG0000007 1 9 B1ABCF000011 B1GBCFGH0001 B1GDCFJJ0002 E C B B1GDCFGH0002 B1GBCFGG0030 B C E 2SD09650RA B1AAGC00...

Page 88: ...Signal I P 51 ARFIN I Audio RF Signal I P 52 DSLF Loop Filter Terminal For DSL Pin No Mark I O Function 53 IREF I Reference I P 54 PLLF I PLL Loop Filter Terminal Phase Compare 55 PLLF0 O 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 I Servo Motor O P Enabling 62 ...

Page 89: ...Control 40 MUTE_A O Audio Muting Control Pin No Mark I O Function 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 Inpu...

Page 90: ... 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 DP P CONT 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 Avcc Analog Power Supply Input ...

Page 91: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK750E SA AK750EB SA AK750EG 91 ...

Page 92: ...SA AK750E SA AK750EB SA AK750EG 92 ...

Page 93: ...23 2 Deck Mechanism Parts Location RAA4403 S SA AK750E SA AK750EB SA AK750EG 93 ...

Page 94: ...23 3 Packaging SA AK750E SA AK750EB SA AK750EG 94 ...

Page 95: ... M 110 RMB0312 TRIGGER LEVER SPRING M 111 RMB0400 REEL SPRING M 112 RMB0403 HEAD PANEL SPRING M 113 RMB0404 BRAKE ROD SPRING M 114 RMB0406 5 FR LEVER SPRING M 115 RMB0408 THRUST SPRING M 116 RML0370 4 TRIGGER LEVER M 117 RML0371 FR LEVER M 118 RML0372 2 WINDING LEVER M 119 RML0374 2 EJECT LEVER M 120 RMM0131 1 BRAKE ROD M 121 RMM0133 1 EJECT ROD M 122 RMQ0519 REEL HUB M 123 RMS0398 1 MOVING CORE M...

Page 96: ...AGC000006 TRANSISTOR M Q1312 B1ABCF000011 TRANSISTOR M Ref No Part No Part Name Description Remarks Q1314 B1GDCFGH0002 TRANSISTOR M Q1315 B1ACKD000006 TRANSISTOR M Q1316 2SD09650RA TRANSISTOR M Q1317 B1ABGC000005 TRANSISTOR M Q2142 B1ABCF000176 TRANSISTOR M Q2242 B1ABCF000176 TRANSISTOR M Q2311 B1ABGC000005 TRANSISTOR M Q2317 B1ABCF000176 TRANSISTOR M Q2341 B1ABGC000005 TRANSISTOR M Q2411 B1ABGC00...

Page 97: ...1405RJ SW CD3 M Ref No Part No Part Name Description Remarks S6204 EVQ21405RJ SW CD4 M S6205 EVQ21405RJ SW CD5 M S6206 EVQ21405RJ SW FF M S6207 EVQ21405RJ SW REW M S6301 EVQ21405RJ SW OPEN M S6302 EVQ21405RJ SW CD M S6303 EVQ21405RJ SW TAPE M S6304 EVQ21405RJ SW TUNER M S6305 EVQ21405RJ SW MUSIC PORT M S6306 EVQ21405RJ SW REC M S6307 EVQ21405RJ SW SUBWOOFER M S6308 EVQ21405RJ SW H BASS M S6309 EVQ...

Page 98: ...R00V CHIP JUMPER M W580 ERJ3GEY0R00V CHIP JUMPER M W581 ERJ3GEY0R00V CHIP JUMPER M W582 ERJ3GEY0R00V CHIP JUMPER M W583 ERJ3GEY0R00V CHIP JUMPER M W584 ERJ3GEY0R00V CHIP JUMPER M W586 ERJ3GEY0R00V CHIP JUMPER M W587 ERJ3GEY0R00V CHIP JUMPER M W588 ERJ3GEY0R00V CHIP JUMPER M W589 ERJ3GEY0R00V CHIP JUMPER M W590 ERJ3GEY0R00V CHIP JUMPER M W591 ERJ3GEY0R00V CHIP JUMPER M W592 ERJ6GEY0R00V CHIP JUMPER...

Page 99: ...ERJ6GEY0R00V CHIP JUMPER M W5505 ERJ3GEY0R00V CHIP JUMPER M W5506 ERJ3GEY0R00V CHIP JUMPER M W5507 ERJ3GEY0R00V CHIP JUMPER M W5508 ERJ3GEY0R00V CHIP JUMPER M W5511 ERJ3GEY0R00V CHIP JUMPER M W7001 D0GDR00JA017 CHIP JUMPER M W7002 D0GDR00JA017 CHIP JUMPER M W7003 D0GDR00JA017 CHIP JUMPER M W7004 D0GBR00JA008 CHIP JUMPER M Ref No Part No Part Name Description Remarks W7005 D0GBR00JA008 CHIP JUMPER ...

Page 100: ...8 10K 1 16W M R2202 D0GB332JA007 3 3K 1 16W M R2203 D0GB222JA041 2 2K 1 16W M Ref No Part No Part Name Description Remarks R2204 D0GB273JA007 27K 1 16W M R2211 D0GB222JA041 2 2K 1 16W M R2212 D0GB332JA007 3 3K 1 16W M R2221 D0GB332JA007 3 3K 1 16W M R2222 D0GB332JA007 3 3K 1 16W M R2231 D0GB332JA007 3 3K 1 16W M R2232 D0GB332JA007 3 3K 1 16W M R2245 D0GB102JA008 1K 1 16W M R2246 D0GB102JA008 1K 1 ...

Page 101: ...33 D0GB101JA007 100 1 16W M R2834 D0GB101JA007 100 1 16W M R2835 D0GB101JA007 100 1 16W M Ref No Part No Part Name Description Remarks R2836 D0GB101JA007 100 1 16W M R2837 D0GB101JA007 100 1 16W M R2838 D0GB101JA007 100 1 16W M R2839 D0GB101JA007 100 1 16W M R2840 D0GB101JA007 100 1 16W M R2841 D0GB101JA007 100 1 16W M R2842 D0GB101JA007 100 1 16W M R2843 D0GB101JA007 100 1 16W M R2844 D0GB222JA04...

Page 102: ...ERJ6GEYJ105V 1M 1 10W M R5522 ERJ6GEYJ105V 1M 1 10W M Ref No Part No Part Name Description Remarks R5523 ERJ6GEYJ105V 1M 1 10W M R5524 ERJ6GEYJ105V 1M 1 10W M R5525 ERJ6GEYJ105V 1M 1 10W M R5526 ERJ6GEYJ105V 1M 1 10W M R5951 D0AE332JA048 3 3K 1 4W M R5952 D0AE472JA048 4 7K 1 4W M R5953 D0AE151JA048 150 1 4W M R5957 D0AE103JA048 10K 1 4W M R5958 D0AE103JA048 10K 1 4W M R5960 D0AE472JA048 4 7K 1 4W ...

Page 103: ...312 F1H1H332A013 3300P 50V M C1314 F1H1H222A013 2200P 50V M Ref No Part No Part Name Description Remarks C1315 F1H1H222A013 2200P 50V M C1316 F1H1H102A219 1000P 50V M C1317 F1H1H102A219 1000P 50V M C1318 ECQV1H473JL3 0 047 50V M C1319 F2A1C101A147 100 16V M C1320 F2A1H1R0A145 1 50V M C1321 F0A2A472A019 4700P 100V M C1323 ECEA1HKN010B 1 50V M C1324 ECA1CAK470XB 47 16V M C1326 F2A1C100A147 10 16V M ...

Page 104: ...K 100P 50V M C2985 F1H1H102A219 1000P 50V M C2986 F1H1H102A219 1000P 50V M Ref No Part No Part Name Description Remarks C4000 F1H1H104A783 0 1 50V M C4001 F1H1H223A219 0 022 50V M C5101 F2A1V102A154 1000 35V M C5102 ECA2AM100B 10 100V M C5103 ECA2AM100B 10 100V M C5104 F2A1V102A154 1000 35V M C5105 ECA1AAK221XB 220 10V M C5106 ECJ1VB1H104K 0 1 50V M C5107 ECJ1VB1H104K 0 1 50V M C5109 ECA1EAM101XB ...

Page 105: ...P 100V M C5532 F1H2A221A009 220P 100V M C5533 F1H2A221A009 220P 100V M C5538 F1H1H102A219 1000P 50V M Ref No Part No Part Name Description Remarks C5539 F1H1H102A219 1000P 50V M C5701 F2A0J101A181 100 6 3V M C5920 ECA1HM102E 1000 50V M C5940 ECA1HM102E 1000 50V M C5950 F2B1E222A005 2200 25V M C5951 F1B1H103A007 0 01 50V M C5952 F2A1A470A204 47 10V M C5953 F1B1H103A007 0 01 50V M C5954 F1B1H103A007...

Page 106: ...Ref No Part No Part Name Description Remarks C7614 F2A0J101A198 100 6 3V M C7626 ECJ1VB1C104K 0 1 16V M C7670 ECJ1VB1C104K 0 1 16V M 106 SA AK750E SA AK750EB SA AK750EG YSP0703 ...

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