manualshive.com logo in svg

Panasonic SA-AK750P, Service Manual, Page: 63 / 108

Share
Download
Panasonic SA-AK750P Service Manual Download Page 63

17.4. Panel Diagram

SA-

AK750P/PC PANEL DIAGRAM

TO TRANSFORMER

TO MAIN

(2/2)

TO MAIN

(2/2)

TO MAIN

(1/2)

TO MAIN

(2/2)

TO MAIN

(1/2)

H6555 CN5951

1

H6555 CN5951

2

CN6601 CN2806

12

CN6601 CN2806

2

CN6601 CN2806

5

CN6601 CN2806

20

CN6601 CN2806

22

CN6601 CN2806

8

CN6601 CN2806

25

CN6601 CN2806

27

CN6601 CN2806

9

CN6601 CN2806

16

CN6601 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

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

MOT10V

REMOTE

SENSOR

S6301-S6309

VR6491

MIC VOLUME

S6106-S6108

S6101-S6105

SUB PANEL CIRCUIT

SUB PANEL P.C.B

SA-AK750P / SA-AK750PC

63

Summary of Contents for SA-AK750P

Page 1: ...olation of law SA AK750P SA AK750PC Colour K Black Type Frequency range 87 9 to 107 9 MHz 200 kHz steps 87 5 to 108 0 MHz 100 kHz steps Sensitivity 4 0 µV IHF S N 26 dB 2 2 µV Antenna terminal s 75 Ω unbalanced Amplitude Modulation AM Frequency range 520 to 1710 kHz 10 kHz step Sensitivity S N 20 dB at 1000 kHz 560 µV m Music Port input jack Terminal Stereo 3 5 mm 1 8 jack Sensitivity 100 mV 4 7 k...

Page 2: ...2 I Pod Cradle Supported audio file format 1 CD Audio CD DA 2 CD R RW CD DA MP3 formatted disc 3 MP3 Bit Rate n GENERAL Power supply AC 120 V 60Hz Power consumption 150 W Power consumption in standby mode 0 28 W Dimensions W x H x D 250 x 330 x 323 mm 9 27 32 x 13 x 12 23 32 Mass 7 1 kg 15 7 lb Operating temperature range 5 to 35 C 41 to 95 F Operating humidity range 5 to 90 RH no condensation n S...

Page 3: ...ansformer P C B 53 15 3 Panel P C B 53 15 4 Main P C B 54 15 5 XM P C B 55 15 6 Deck P C B 55 15 7 Waveform Chart 56 16 Wiring Connection Diagram 57 17 Block Diagram 59 17 1 CD Servo Diagram 59 17 2 Deck Deck Mechanism Diagram 60 17 3 D Port Main Diagram 61 17 4 Panel Diagram 63 17 5 Power Diagram 64 17 6 XM Transformer Diagram 65 18 Notes Of Schematic Diagram 67 19 Schematic Diagram 69 19 1 A CD ...

Page 4: ...d 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 ground su...

Page 5: ...se critical parts should be replaced with manufacturer s specified parts to prevent shock fire or other hazards Do not modify the original design without permission of manufacturer Table 1 Reference No Part No Part name Description Remarks L5601 G0B9R5K00001 CHOKE COIL L5602 G0B9R5K00001 CHOKE COIL L5603 G0B9R5K00001 CHOKE COIL L5604 G0B9R5K00001 CHOKE COIL L5950 ELF15N035AN LINE FILTER T5950 G4CY...

Page 6: ...e 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 protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam aluminium foil or comparable conductive materi...

Page 7: ... 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 where the...

Page 8: ...8 SA AK750P SA AK750PC ...

Page 9: ...riable 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 ADJUSTMENTS OR P...

Page 10: ...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 the melting point...

Page 11: ...6 Accessories Remote Control FM Indoor Antenna AC Cord AM Loop Antenna 11 SA AK750P SA AK750PC ...

Page 12: ...7 Operation Procedures 7 1 Main Unit Key Buttons Operations 7 2 Remote Control Key Buttons Operations 12 SA AK750P SA AK750PC ...

Page 13: ...13 SA AK750P SA AK750PC ...

Page 14: ...8 New 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 14 SA AK750P SA AK750PC ...

Page 15: ...8 2 Using XM Satellite Radio With reference to page 12 of the operating instruction manual 15 SA AK750P SA AK750PC ...

Page 16: ...With reference to page 13 of the operating instruction manual 16 SA AK750P SA AK750PC ...

Page 17: ...8 3 Using IPod With reference to page 16 of the operating instruction manual 17 SA AK750P SA AK750PC ...

Page 18: ...With reference to page 17 of the operating instruction manual 18 SA AK750P SA AK750PC ...

Page 19: ...formation 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 ...

Page 20: ...result 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 ex...

Page 21: ...mode Step 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 t...

Page 22: ...ject to 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 22 SA AK750P SA AK750PC ...

Page 23: ...ion refer 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 23 SA AK750P SA AK750PC ...

Page 24: ...CD Servo 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 ...

Page 25: ...tomatically 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 ti...

Page 26: ...ot properly connected or the antenna cable is damaged Flashing For more information refer to operating instruction manual for connection of antenna UPDATING XM Encryption Code 1 The XM antenna is being updated with the latest encryption code Wait for few seconds for the updating to be completed 2 The selected XM channel has been blocked or is no longer available with the subscription package Flash...

Page 27: ...ecks 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 operation for C...

Page 28: ...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 28 SA AK750P SA AK750PC ...

Page 29: ...10 3 Main Parts Location 29 SA AK750P SA AK750PC ...

Page 30: ... the top 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 30 SA AK750P SA AK750PC ...

Page 31: ...tep 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 Block Follow the Step 1 Step 5 of Item 10 4 31 SA AK750P SA AK750PC ...

Page 32: ...CN2810 at Main P C B Step 3 Detach FFC cables CN2801 CN2805 at Main P C B Step 4 Remove rear panel Disassembly of XM in P C B Step 1 Remove 1 screw Disassembly of D Port P C B Step 1 Remove 2 screws 32 SA AK750P SA AK750PC ...

Page 33: ...mer 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 33 SA AK750P SA AK750PC ...

Page 34: ...move 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 th...

Page 35: ...etach 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 35 SA AK750P SA AK750PC ...

Page 36: ...ottom 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 36 SA AK750P ...

Page 37: ...upward and then open the cassette lid ass y 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 37 SA AK750P SA AK750PC ...

Page 38: ...lunger lever and rotate the gear as arrows shown until it stop Note For disassembly of parts for deck mechanism unit refer to Section 10 16 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 14 Disassembly of Deck P C B Follow the Step...

Page 39: ...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 13 Follow the Step 1 Step 3 of Item 10 14 39 SA AK750P SA AK750PC ...

Page 40: ...10 16 1 Replacement of Pinch Roller and Head Block 40 SA AK750P SA AK750PC ...

Page 41: ...10 16 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 41 SA AK750P SA AK750PC ...

Page 42: ... 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 42 SA AK750P SA AK750PC ...

Page 43: ...l F in the direction of the arrow to remove it Step 2 Remove spring and push the cassette lid in the direction of arrows 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 14 10 19 Rectification for tape jam problem Follow the Step 1 Step 5 of Item 10 4 43 SA AK750P...

Page 44: ...Step 2 Push the lever upward and open the cassette lid Remove the cassette tape Note Follow 10 18 Disassembly of cassette lid Step1 to Step 3 Remove the cassette tape 44 SA AK750P SA AK750PC ...

Page 45: ...ls 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 45 SA AK750P SA AK750PC ...

Page 46: ...12 2 Checking and Repairing of Transformer P C B 12 3 Checking and Repairing of Panel Deck Deck Mechanism P C B 46 SA AK750P SA AK750PC ...

Page 47: ...12 4 Checking and Repairing of Power P C B 47 SA AK750P SA AK750PC ...

Page 48: ...ming 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 Parts of...

Page 49: ...Fig 7 49 SA AK750P SA AK750PC ...

Page 50: ...move 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 the ...

Page 51: ...cording 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 withi...

Page 52: ...cribed herein 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 52 SA AK750P SA AK750PC ...

Page 53: ...15 2 Power P C B Transformer P C B 15 3 Panel P C B 53 SA AK750P SA AK750PC ...

Page 54: ...15 4 Main P C B 54 SA AK750P SA AK750PC ...

Page 55: ...15 5 XM P C B 15 6 Deck P C B 55 SA AK750P SA AK750PC ...

Page 56: ...15 7 Waveform Chart 56 SA AK750P SA AK750PC ...

Page 57: ... 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 JK6501 VR6511 JK6551 20 2 9 1 21 1 CN2808 12 1 CN2809 12 1 CN3601 JK2803 10 1 C MAIN P C B SOLDER SIDE G 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 JK1 FP1 VR6491 1 10 MUSIC PORT MIC MIC VOL HEADPHO...

Page 58: ...58 SA AK750P SA AK750PC ...

Page 59: ...9 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 7 11 15 16 17 NWE NCAS 8 9 63 64 62 NR...

Page 60: ...0000612 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 SIGNA...

Page 61: ...AMP 2 3 1 IC2810 2 2 C0ABBB000244 SMT OP AMP 6 5 7 CN2401 CN3400 1 CN2401 CN3400 3 6 5 2 3 1 7 SWITCH SWITCH SWITCH DRIVER SWITCH DRIVER 1 IN L1 2 IN R1 5 IN L3 6 IN R3 9 IN L5 10 12 11 IN R5 IN L6 IN R6 7 IN L4 8 IN R4 56 OP IN 3 IN L2 4 IN R2 IC2803 C1BB00001121 AUDIO SOUND PROCESSOR 39 40 CLK DATA IDCDET ASPCLK ASPDA LM 1 MUTEA IC3500 C0CBCDG00003 IC 4 5V 1 PCONT 17 REC R 53 REC L 16 GV_OUT R 5...

Page 62: ...N2803 5 CN2805 12 CN2805 14 CN2805 13 CN2805 11 CN2805 8 CN2805 7 CN2805 6 CN2805 5 CN2805 2 CN2805 1 CN3601 7 CN3601 4 CN3601 3 CN3601 2 CN3601 1 CN2805 4 D2937 D2941 4 5 RDS_CLK RDS_DA RDS_DA RDS_CLK 69 68 65 26 27 1 91 66 67 60 2 3 32 31 6 37 34 44 38 35 36 48 45 49 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...

Page 63: ... 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 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 VRE...

Page 64: ... DIGITAL 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 STABLISE...

Page 65: ...50 JK5950 L5950 F1 D5950 D5953 D5970 D5973 TO MAIN 1 2 TO MAIN 1 2 TO MAIN 2 2 X1 D D VCC JK1 XM 43 39 41 37 1 2 4 44 6 14 3 4 10 11 5 D1 3 23 18 22 19 28 26 IC1 C1AB00002670 XM SAT RADIO DRIVER ANT_REV RST SC_RX_IN SC_TX_OUT RX_M RX_P LINKACTIVE 12S_CLK 12S_DA 12S_OCLK MCLK AOUTR AOUTL PDN LPCK SMUTE 6 8 OUT VDD IN EN BILK SDTI 12S_LRCLK MUTE 13 I2S_RATE 14 3 5 9 11 TX_P TX_M IN OUT IC3 C0FBBY000...

Page 66: ...SA AK750P SA AK750PC 66 ...

Page 67: ...itch 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 resista...

Page 68: ...68 SA AK750P SA AK750PC ...

Page 69: ...FPE2 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 IN2 N...

Page 70: ...P 390 R7 R6 4 7K X1 X1 H0A451500001 47 R20 100K R4 C3 0 1 47 45 43 40 41 38 37 39 42 44 46 23 20 15 14 18 19 16 17 22 21 24 35 32 33 28 25 27 26 30 31 29 34 36 6 1 4 2 3 5 48 8 9 7 10 12 11 13 C1AB00002670 IC1 47 R58 6 5 8 9 11 12 10 14 15 13 7 2 1 4 3 17 16 FP1 47 R57 1K R11 C5 0 1 C4 0 1 LB7 J0JHC0000107 C27 IN EN IN 100K 100K 5 3V AGND MUTE 3 3V 5 3V 500mA 5 3V 3 3V 100mA DGND SC_RXD AOUT_R AOU...

Page 71: ...C2301 C2194 R2193 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 50V2...

Page 72: ...u 220k 12k 1u 1u 12k 1u 1k 50V100 100 10 27k 100p 100 1k 100k 1k 18k 0 15u 47k 100p 0 01u 1u 2 2k A_GND SW_LV2 SW_LV1 T_GND MUTE_D_AMP 15V FAN F_HOP A_GND 7 9 10 8 4 5 1 3 2 6 12 11 2 1 7 8 5 4 3 6 Q2317 Q2417 B1ABCF000176 MUTING SWITCH IC2810 IC2810 COABBB000244 SMT OP AMP IC Q2551 Q2552 B1GDCFJJ0047 SWITCH SUPPLY SWITCH Q2553 Q2554 B1ABCF000176 SUBWOOFER LEVEL CONTROL SWITCH Q2555 B1ABCF000176 S...

Page 73: ...G_A A_GND VCC MDATA MLD STATUS MCLK RESTSW OPEN_SW CHG_CCW CD_RESET B0ACCK000005 B0ADCJ000020 CN3601 2SC3940A0A D0GB000J008 3 3V REGULATOR D0GB000J008 C0DBZGC00067 B0EAKM000117 B0BC9R000008 6 8 9 7 2 1 4 5 3 10 6 5 8 9 11 12 10 18 15 17 16 20 19 13 14 7 2 1 4 3 22 22 1 21 3 4 2 5 98 94 95 92 91 93 97 96 1 100 99 80 78 76 77 79 87 86 88 89 82 84 83 81 85 90 16 14 15 17 11 13 12 69 67 65 64 66 68 70...

Page 74: ...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 CLK IPOD_RXD IPOD_TXD XM_MUTE BUSY VCC U_GND 5V CD_3 3V IDCDET STANDBY MOT_12V PCONT P_GND MOT_12V FAN IDCDET B0EAKM000117 H0A327200097 H2B100500004 B0ADCJ000020 B0ACCK000005 1 2 16V47 5 6 1 3 4 2 8 7 7 9 10 8 4 5 1 3 2 6 12 11 6 7 5 9 25...

Page 75: ...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 GR1 VREF VJOG_A KEY3 MOT12V GND2 H BASS_LED KEY3_2 VOL_LED KEY1_OUT KEY1_IN 3 3V GR10 SG2 SG2 SG1 SG1 GR2 GR11 GR1 GR7 GR9 GR8 GR6 GR4 GR3 GR5 GR2 GR1 VDD VDD KEY1_...

Page 76: ... S6308 R6308 R6309 R6310 R6306 S6305 S6306 C6491 C6492 R6492 KEY3_2 KEY3 MOT10V VJOG_A VOL_LED STOP DEMO KEY1 DISPLAY KEY1 OUT TAPE CD H BASS_LED TUNER H BASS PRESENT EQ REC SUBW MUSIC PORT KEY1 IN VREF GND2 KEY3 OPEN JW6001 1K 1K 1 2K 0 0 330 10K 2 2K 22K 4 7K 2 7K 1 8K 10K 2 7K 4 7K 6 8K 10K 2 2K 100P 100P 12K VR6491 EVEKE2F3024B VOLUME JOG QR6457 B1GBCFLL0037 LED DRIVE TO MAIN CIRCUIT CN3400 IN...

Page 77: ...D 1M 1M 1M 1M 1M 0 015u 220K 150K 100K 100K 390K R5112 390K 10V220u 1000P 10K 0 1u 0 47u 10 10 10 0 1u 220P 0 1u 0 1u 220P 220P 220P 10 22 0 0 1u 0 0 1u 0 1u 0 1u 0 47u 5 6K 5 6K 0 47u 1K 0 47u 1K 100 100 1000P 5 6K 1K 1K 0 1u 220P 0 015u 1M 330P 0 47u 0 47u 0 1u 0 1u 0 1u 0 1u H2A415300001 H2A375300003 1M 100P 6 3V220u 10 6 8K 330P 18P 5 6K 1000P 0 47u 100 10K 1K 100K 100P 100K 100P 470P 100K 0 4...

Page 78: ...V PCONT MOTOR12V 0 1u 100V10u 4 7 150K REGULATOR IC 2 2 35V1000 1K 10K 10u 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 SUBWOOFER SUBWOOFER SUBWOOFER SUBWOOFER LL LL LEFT HIGH RIGHT LOW RIGHT LOW RIGHT HIGH RIGHT HIGH LEFT LOW LEFT LOW LEFT HIGH VCC1 CHASIS GN...

Page 79: ...34 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 1500...

Page 80: ... 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 10A 10A 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 SWITCH ELF15N035AN B1AAKD000014 B0EAKP000134 B0EAKP...

Page 81: ...20 Printed Circuit Board Note Circuit board diagrams may be modified at any time with the development of new technology SA AK750P SA AK750PC 81 ...

Page 82: ...1 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 W1910 W...

Page 83: ...0 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 W615 W648 R2937 R2936 W625 W616 W637 W632 W649 W611 W425 W127 W210 W209 W301 W213 W214 W214 W215 W346 W347 W405 W447 W420 W446 W363 W202 C4000 W203 W126 W465 W341 W630 W640 C4001 W676 R2802 R2801 R2811 R2586 R3210 W609...

Page 84: ... 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 R6751 W1005 W1002 W...

Page 85: ...09 R6107 R6305 QR6457 K6101 R6457 K6104 C6492 C6491 R6492 R6491 R6302 R6303 R6108 SUBW PRESET EQ 0109A 0109A VR6491 VOLUME IC1 IC3 X1 C1 C2 C12 R16 R17 R19 R20 C17 LB3 C28 R13 R14 C19 C18 IC2 JK1 C21 LB2 C10 R44 R15 R43 C14 R57 R58 C37 C15 C38 R32 R31 R3 R64 R59 C11 C27 C16 R66 R65 FP1 D1 R 9 XM R21 LB4 C7 C6 C4 C5 R10 R11 R12 C20 LB6 C22 C3 R1 R7 R6 R24 R23 C13 R26 R46 R25 R45 R22 LB1 R39 R40 C9 ...

Page 86: ...5301 W1050 W1046 W1047 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 K5001 W1097 W1090 W1091 C5527 C5529 C5528 C5335 C5425 C5343 C5426 C5334 C5428 C5429 R5505 R5506 C5524 C5427 R5406 W1067 W...

Page 87: ...W5922 W5906 W5904 CN5950 W5920 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 R5950 SUB TRANSFORMER RL5950 Z5950 FC2 FC1 F1 125V 4A K5973 K5911 JK5950 W5914 W5915 W5916 W5917 L5950 ...

Page 88: ...SA AK750P SA AK750PC 88 ...

Page 89: ...node Cathode 1 28 15 14 7 21 22 8 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 C0CBCDG00003 C0GAG0000007 1 9 B1ABCF000011 B1GBCFGH0001 B1GDCFJJ0002 E C B B1GDC...

Page 90: ...back 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 Enablin...

Page 91: ...PM for On board writer 42 EE_CLK O EEPROM CLOCK 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 Volta...

Page 92: ... 89 REG AD Region Setting 90 VOL_JOG AD Volume jog 91 D PORT P CONT O D Port P CONT 92 KEY3 AD Key 3 Input 93 KEY2 AD Key 2 Input 94 KEY1 AD Key 1 Input 95 Deck_AD1 AD Deck AD input 1 96 AVSS Analog Power Supply Input Connect to GND 97 Deck_AD2 AD Deck AD input 2 98 Vref Reference for A D 5V 99 Avcc Analog Power Supply Input 100 DEMO_SET I H default demo on L default demo off 92 SA AK750P SA AK750...

Page 93: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK750P SA AK750PC 93 ...

Page 94: ...SA AK750P SA AK750PC 94 ...

Page 95: ...23 2 Deck Mechanism Parts Locations RAA4403 S SA AK750P SA AK750PC 95 ...

Page 96: ...23 3 Packaging SA AK750P SA AK750PC 96 ...

Page 97: ...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 124 RXQ0470 2 PLUNGER ASS Y ...

Page 98: ...TRANSISTOR M Ref No Part No Part Name Description Remarks Q1310 B1AAGC000006 TRANSISTOR M Q1312 B1ABCF000011 TRANSISTOR M 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 TRANS...

Page 99: ...M D6463 B3AAA0000884 DIODE M D6635 B0BC5R600003 DIODE M D7650 MAZ80560ML DIODE M Ref No Part No Part Name Description Remarks VARIABLE RESISTOR VR6491 EVEKE2F3024B VR VOLUME JOG M SWITCHES S971 K0J1BB000017 SW MODE M S972 K0J1BB000021 SW HALF M S975 K0J1BB000021 SW REC_INH_F M S6101 EVQ21405RJ SW AC IN M S6102 EVQ21405RJ SW MULTI CHANGE M S6103 EVQ21405RJ SW OPEN CLOSE M S6104 EVQ21405RJ SW SINGLE...

Page 100: ...P JUMPER M W576 ERJ3GEY0R00V CHIP JUMPER M W577 ERJ3GEY0R00V CHIP JUMPER M W579 ERJ3GEY0R00V 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 ...

Page 101: ...GEY0R00V CHIP JUMPER M W1099 ERJ3GEY0R00V CHIP JUMPER M W1102 ERJ3GEY0R00V CHIP JUMPER M W1103 ERJ3GEY0R00V CHIP JUMPER M W5162 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 Ref No Part No Part Name Description Remarks W7001 D0GDR00JA017 CHIP JUMPER M W7...

Page 102: ...K 1 16W M R1343 D0GB332JA008 3 3K 1 16W M Ref No Part No Part Name Description Remarks R1344 D0GB273JA008 27K 1 16W M R1345 D0GB102JA008 1K 1 16W M R1371 D0GB223JA007 22K 1 16W M R1374 D0GB471JA007 470 1 16W M R1401 D0GB123JA008 12K 1 16W M R1402 D0GB274JA008 270K 1 16W M R1403 D0GB103JA008 10K 1 16W M R1404 D0GB223JA007 22K 1 16W M R1405 D0GB103JA008 10K 1 16W M R2102 D0GB332JA007 3 3K 1 16W M R2...

Page 103: ...473JA041 47K 1 16W M R2676 D0GB103JA008 10K 1 16W M R2677 ERJ6GEYJ271V 270 1 10W M Ref No Part No Part Name Description Remarks 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 R2721 D0GB102JA008 1K 1 16W M R2722 D0GB102JA008 1K 1 16W M R2731 D0GB101JA008 100 1...

Page 104: ...1 16W M R5113 ERJ3GEYJ394V 390K 1 16W M R5114 ERJ3GEYJ1R8V 1 8 1 16W M R5123 D0C14R7JA020 4 7 1W M R5126 D0GB102JA008 1K 1 16W M Ref No Part No Part Name Description Remarks R5127 D0GB471JA041 470 1 16W M R5132 D0AF331JA039 330 1 4W M R5133 D0GB103JA008 10K 1 16W M R5134 D0GB122JA008 1 2K 1 16W M R5135 D0AE2R2JA048 2 2 1 4W M R5136 D0AE2R2JA048 2 2 1 4W M R5137 D0AE2R2JA048 2 2 1 4W M R5138 ERJ8GE...

Page 105: ...15 ERJ3GEYJ332V 3 3K 1 16W M R7323 ERJ3GEYJ332V 3 3K 1 16W M R7325 ERJ3GEYJ331V 330 1 16W M R7327 D0GB102JA008 1K 1 16W M R7328 D0GB103JA008 10K 1 16W M R7329 D0GB102JA008 1K 1 16W M R7330 ERJ3GEYJ562V 5 6K 1 16W M Ref No Part No Part Name Description Remarks R7331 D0GB223JA008 22K 1 16W M R7332 D0GB102JA008 1K 1 16W M R7335 ERJ3GEYJ101V 100 1 16W M R7336 ERJ3GEYJ100V 10 1 16W M R7339 D0GB102JA008...

Page 106: ...2401 F1H1A224A007 0 22 10V M C2402 F1H1A105A025 1 10V M C2411 F1H1A105A025 1 10V M Ref No Part No Part Name Description Remarks C2412 F1H1A105A025 1 10V M C2413 F1H1H470A230 47P 50V M C2414 F1H1H100A230 10P 50V M C2415 F2A1H220A216 22 50V M C2421 ECJ1VB1A224K 0 22 10V M C2423 F1H1H103A219 0 01 50V M C2424 ECJ1VB1C105K 1 16V M C2425 ECA1HAK010XB 1 50V M C2431 ECJ1VB1H682K 6800P 50V M C2433 F1H1A105...

Page 107: ...C5303 ECJ1VB1A474K 0 47 10V M C5304 ECJ1VB1A474K 0 47 10V M Ref No Part No Part Name Description Remarks C5305 F1H1H331A013 330P 50V M C5306 ECJ1VB1A474K 0 47 10V 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 ECJ1VB1H104K 0 1 50V M C5313 F1H1H153A219 0 015 50V M C5314 F1K2A1040006 0 1 100V M C5315 ECJ1VB1H104K 0 1 50V ...

Page 108: ...0 01 50V M C6552 F1H1H103A219 0 01 50V M C6553 F1H1H103A219 0 01 50V M C6601 ECJ1VC1H101K 100P 50V M C6602 F1H1H102A219 1000P 50V M C6603 ECJ1VC1H101K 100P 50V M C6604 ECJ1VC1H101K 100P 50V M C6623 F2A1H220A216 22 50V M C6631 F2A1H220A216 22 50V M C6632 F2A1H220A216 22 50V M C6635 F2A1H2R2A145 2 2 50V M C6636 ECJ1VC1H101K 100P 50V M C6751 F1H1H103A219 0 01 50V M C6752 F1H1H103A219 0 01 50V M C6753...

Reviews:

No comments