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4-24

K2600/K2600X Disassembly/Assembly

K2600 Keyboard Assembly

Removing Keys

The following procedure assumes you have removed the top enclosure from the K2600.

1. Follow the procedure for removing the keyboard (page 4-21) or disconnecting the

keyboard (page 4-23.)

2. The following diagrams illustrate the outlines of the natural and sharp keys and the

locations and functions of the components described in the following procedures.

Natural/White Key

Figure 4-9

Natural/White key, 76-note keyboard

Figure 4-10

Sharp/Black key, 76-note keyboard

Strikes the front and rear key
contact on key depression

Mounts through the
keyboard chassis

Key spring
location

Pivot
location

Strikes the front and rear key
contact on key depression

Mounts through the
keyboard chassis

Key spring
location

Pivot
location

Содержание K2600 Series

Страница 1: ...uct line of Young Chang Co Kurzweil is a trademark of Young Chang Co All other products and brand names are trademarks or registered trademarks of their respective companies Product features and speci...

Страница 2: ...trip over walk on or roll anything over cords of any type Do not allow the product to rest on or be installed over cords of any type Improper installations of this type create the possibility of a fi...

Страница 3: ...Music Corp P O Box 99995 Lakewood WA 98499 0995 Tel 253 589 3200 Fax 253 984 0245 Young Chang Akki Co Ltd 178 55 Gajwa Dong Seo Ku Inchon Korea 404 250 Tel 011 82 32 570 1380 Fax 011 82 32 570 1218 Y...

Страница 4: ......

Страница 5: ...r 2 Diagnostics Diagnostic Tests 2 1 Saving User Data 2 1 Entering Diagnostics 2 2 LCD and Front Panel Buttons 2 2 Test Results 2 3 Diagnostic Test Menus 2 3 Main Menu 2 3 Burn In Menu 2 3 Forever 2 3...

Страница 6: ...8 Removing the Power Supply Board 3 9 Replacing the Power Supply Board 3 9 Removing the Transformer 3 9 Replacing the Transformer 3 10 Removing the Backlight Board 3 10 Replacing the Backlight Board...

Страница 7: ...Board 4 10 Replacing the Slider Board 4 10 Removing the LCD Board 4 11 Replacing the LCD Board 4 11 Removing the Backlight Board 4 12 Replacing the Backlight Board 4 12 Removing the Control Panel Boa...

Страница 8: ...0 Sharp Black Keys 4 31 Replacing a Key 4 32 Servicing the Keyboard Contact Boards 4 32 Removing the Treble Contact Board 4 32 Replacing the Treble Contact Board 4 32 Removing the Bass Contact Board 4...

Страница 9: ...ders or Controllers Not Working 5 11 Audio Problems 5 12 Intermittent or No Audio 5 12 No Audio Distortion or Noisey Outputs 5 12 Right Channel 5 12 Left Channel 5 12 Full volume static distortion aft...

Страница 10: ...cs CPU Board CPU Sampler Interface 1 of 8 7 3 CPU Board Flash SRAM Expansion PRAM 2 of 8 7 4 CPU Board FDD LCD MIDI Interface 3 of 8 7 5 CPU Board SCSI Interface 4 of 8 7 6 CPU Board JANIS DAC Interfa...

Страница 11: ...Control Interface 7 31 Itty Bitty Button Board keyboard models 7 32 Digital I O Board Relays AES Encoding KDS Encoding 1 of 3 7 33 Digital I O Board KDS AES In Out connectors 2 of 3 7 34 Digital I O B...

Страница 12: ...Kurzweil K2600 Series Service Manual Contents viii...

Страница 13: ...600X 88 note keyboard K2600XS 88 note keyboard with built in sampler K2600R Rack mount K2600RS Rack mount with built in sampler K2600 AES 88 note keyboard with built in sampler digital I O DMTI and sa...

Страница 14: ...blow 230 240V F1 0A 250V slow blow 100 120 230 240V AC 1 5 75 A 48 65 Hz MIDI Ports MIDI Select Switch Digital I O SCSI Ports Power Entry Module Analog Outputs Bal Unbal Mix Outputs Kurzweil I O Opti...

Страница 15: ...is jack to send or receive digital information from external devices with an optical in jack Keyboard Models only Power Entry Module includes the power switch AC connector fuse holder and voltage sele...

Страница 16: ...it Edit Chan Bank Layer Zone Data Entry Assignable Controllers On Off Volume Loud Soft Decay Fast Slow Pitch High Low Rotary Vibrato Percussion Fast Slow On Off Chorus Vibrato Depth 1 2 3 KB3 Controll...

Страница 17: ...t or parameter Keyboard Models only Master Volume slider adjusts the overall volume of the mixed audio outputs and the headphone jack Assignable and KB3 Controllers use these buttons to define the fun...

Страница 18: ...ing option is not installed For units with the sampling option use either the two Lo Z XLR or the Hi Z 1 4 tip ring sleeve jacks for sampling from an analog source Optical In If sampling from a digita...

Страница 19: ...Operating System installed in FlashROM Object Blk Tests the Setups installed in FlashROM RAM PRAM Tests the RAM volatile non volatile and expansion I O Port Tests the Microcontroller s port pins FDD...

Страница 20: ...diagnostic tests power up and save the data If you need instructions refer to Saving User Data on page 5 2 4 If you have already saved data stored in user RAM press any button to continue 5 The LCD s...

Страница 21: ...any button to return to the main menu and use the cursor buttons or Alpha Wheels to select another test Burn In Menu Burn In continuously runs the sequence of tests listed in Figure 2 4 Figure 2 4 LCD...

Страница 22: ...difference is detected the test fails A failure of this test indicates a problem with the LCD Engine Board connections between the two boards or related circuitry Engine Blk Engine Block This test co...

Страница 23: ...le the value is in memory it is bitwise inverted twice This should bring the data back to its original value The data is then compared with the original data If a difference is detected an error occur...

Страница 24: ...be read and written through the scanner MIDI Uart The MIDI Uart test performs a loop back of the serial port by sending a 23 byte pattern over the external MIDI link This test requires a MIDI loop a...

Страница 25: ...prior to executing this test Failure of this test may indicate a problem with SCSI ID settings a fault of the SCSI device or connection or a problem on the Engine Board Note For more information on S...

Страница 26: ...of the following Test access to sampling option This test plays a 1KHz sine wave in left output C plays a 1 5KHz sine wave in right output C and performs a series of one second samples from the intern...

Страница 27: ...ound system down to minimum As soon as this test is executed you should hear the first sine wave Press any button or move the Alpha Wheel to step through the remaining five frequencies Note The LCD do...

Страница 28: ...longer the test time The test time for each megabyte of RAM is approximately 20 seconds It should take approximately 15 minutes to run this test for a unit with 128M This test checks the amount of sou...

Страница 29: ...t wait two minutes apply power and immediately execute the 2nd NVRAM test Figure 2 12 LCD example 1st NVRAM test 2nd NVRAM This test confirms that the bit pattern written to it during the 1st NVRAM te...

Страница 30: ...2 12 Diagnostics Description of Tests...

Страница 31: ...button to scroll through the list until Everything appears in the LCD Press the soft button under OK and follow the instructions displayed in the LCD For detailed instructions to save the user data p...

Страница 32: ...op cover locks into a groove on the Front Panel Assembly To remove it lift it and slide it back toward the rear panel 5 Place the top cover safely aside to avoid damage Figure 3 1 K2600R Removing the...

Страница 33: ...n cable to location J601 and install the locking cable clip 4 Connect the remaining cables listed in Table 3 1 Removing the Digital I O Option Board You must remove the Audio Board before removing the...

Страница 34: ...Out and In jacks to the rear panel 5 Install the two screws that secure the Digital I O ports to the rear panel 6 Install the cap on the Optical jack 7 Follow the procedure on page 3 3 to replace the...

Страница 35: ...and is held in place by four nylon PC board standoffs and two 50 pin connectors 1 Several cables are routed over the DSP Board It is not necessary to disconnect all the cables However to make the remo...

Страница 36: ...d 5 Connect the flat ribbon cable from the LCD Board to the CPU Board 6 Be sure to replace the locking cable clips on the flat ribbon cables 7 If the K2600R you are servicing has a Digital I O Option...

Страница 37: ...them safely aside so that you can reinstall them when you reconnect the cables 5 Disconnect the cables listed in Table 3 4 All but one of these cables connect to the CPU Board The exception is Ref J10...

Страница 38: ...he K2600R on its side 7 Hold the CPU holding bracket in position over its mounting hole on the bottom enclosure and install the screw through the bottom enclosure 8 Place the K2600R flat in its normal...

Страница 39: ...ar of disconnected cables and loose hardware 2 Install the four screws that secure the Power Supply Board to the bottom enclosure 3 Connect the cables listed in Table 3 5 Removing the Transformer 1 Di...

Страница 40: ...cts the Backlight Board to the LCD Board 3 Remove the four screws that secure the board to the front panel mounting bracket These screws also secure the cover plate over the board Be aware that once t...

Страница 41: ...the Fan 1 Place the fan in position over the standoffs provided for it on the rear panel The fan should be positioned so that the stranded wire cable is located at the bottom right corner of the fan...

Страница 42: ...the front cover in position Be sure that the front panel switches knobs jacks and potentiometers are correctly positioned and visible through the openings provided for them on the front panel cover 2...

Страница 43: ...entiometer mounting hardware 7 Unless the service you are providing requires that you have access to the components on the Headphone Volume Board it is not necessary to remove the board when removing...

Страница 44: ...Panel Scanner Board Install the two brass screws that secure the power switch to the Front Panel Scanner Board 4 Tilt the front of the K2600R up and install the three screws along the bottom edge of t...

Страница 45: ...e the two brass screws that secure the power switch to the Front Panel Scanner Board 4 Remove the Front Panel Scanner Board Replacing the Front Panel Scanner Board 1 Place the Front Panel Scanner Boar...

Страница 46: ...LCD Board should seem obvious However an arrow is printed on the LCD Board just below the stranded wire cable connection to indicate the Up direction 3 Install the four screws and flat washers that s...

Страница 47: ...t Panel Scanner Board 3 Disconnect the shielded wire cable from the Front Panel Scanner Board 4 Disconnect the stranded wire cable from the LCD Board to the Backlight Board 5 Remove the four screws th...

Страница 48: ...racket Removing the Hard Disk Drive 1 Remove the cable locking clip and disconnect the flat ribbon cable from the Hard Disk Drive 2 Disconnect the power cable from the Hard Disk Drive This cable conne...

Страница 49: ...Replacing the Sampling Board 1 Tilt the front end of the Sampling Board down and place the board in position Be sure that the jacks are correctly aligned through the openings provided for them in the...

Страница 50: ...3 20 K2600R Disassembly Assembly Front Panel Assembly...

Страница 51: ...ave the user data please refer to Saving User Data on page 5 2 Notes Cautions Warnings Please pay special attention to all Notes Cautions and Warnings as they not only point out specific instructions...

Страница 52: ...is point 2 Tilt the K2600 up and remove the seven enclosure support wall screws These attach the support wall to the bottom enclosure 3 Remove the four endblock locking brackets screws two on each sid...

Страница 53: ...ove the eight enclosure support wall screws These attach the support wall to the bottom enclosure 3 Remove the four endblock locking brackets screws two on each side of the bottom enclosure 4 Slide th...

Страница 54: ...y aside Repeat for the other endblock Warning Be sure to have your work surface prepared This includes placing foam blocks behind the unit When the top enclosure is removed place it on the foam blocks...

Страница 55: ...ure 4 3 and install the seven rear panel screws Closing the K2600 K2600X 1 Refer to Figure 4 2 Slide one side of the unit off of your surface and hold the appropriate endblock in position Install the...

Страница 56: ...Module are also located on the top enclosure Figure 4 5 shows the placement of the boards Disk Drive and Power Entry Module Figure 4 6 shows the top enclosure with the Digital I O and Sampling Boards...

Страница 57: ...d disconnect the flat ribbon and stranded wire cables from the disk drive 3 Remove the four screws that secure the disk drive to the disk drive retainer bracket and remove the disk drive 4 If you are...

Страница 58: ...ur screws that secure the Digital I O Out and In jacks to the rear panel 3 Install the two screws that secure the Digital I O ports to the rear panel 4 Install the cap on the Optical jack 5 Connect th...

Страница 59: ...closure support wall Note If you are servicing a K2600 there are seven screws securing the enclosure support wall If you are servicing a K2600X there are eight screws 7 Move the board away from the re...

Страница 60: ...losure support wall If you are servicing a K2600X there are eight screws 4 Remove the four screws that secure the Slider Board to the top enclosure Caution The Slider Board is connected to the Control...

Страница 61: ...Board is removed the bezel remains attached to the Control Panel Board 1 Disconnect the stranded wire cable that connects the LCD Board to the Backlight Board This cable is bent to form a loop The loo...

Страница 62: ...the Backlight Board from the mounting plate as described in Steps 7 and 8 7 Remove the four screws that secure the Backlight Board to the mounting plate These screws also secure a shield over the boar...

Страница 63: ...igure 4 7 Control Panel Board 5 Remove the seven screws that secure the rear panel edge of the Control Panel Board to the top enclosure 6 Slightly lift the Control Panel Board up horizontally just eno...

Страница 64: ...in the extrusion to verify proper positioning of the enclosure support wall screws Note If you are servicing a K2600 there are seven screws securing the enclosure support wall If you are servicing a...

Страница 65: ...he area is clear of disconnected cables loose hardware and locking cable clips 2 Install the six flat washers and six nuts that secure the Switch Pedal and Pedal Breath jacks to the rear panel 3 Conne...

Страница 66: ...Board into the four standoffs Removing the CPU Board The CPU Board is secured to the bottom enclosure with mounting posts that are part of the bottom enclosure The mounting posts rise up out of the bo...

Страница 67: ...and SCSI Termination switches SCSI ports and MIDI jacks are correctly positioned through the rear panel 2 Press the CPU Board down to secure it onto the three standoffs 3 Install the screw that secur...

Страница 68: ...1 and J102 3 Remove the four screws flat washers and lock washers that secure the transformer to the bottom enclosure One of these screws secures a ground wire from the Power Entry Module to the trans...

Страница 69: ...move the four screws flat washers and locks washers that secure the drive mounting brackets to the bottom enclosure 4 Remove the Hard Disk Drive 5 If you are installing a new disk drive you will need...

Страница 70: ...dered directly to the small button board This cable and other cables are bundled together in two places with tie wraps Cut the tie wraps to free the small button board cable and remove the Mod Wheel A...

Страница 71: ...keys contacts contact boards and key weights If you need to gain access to the keys only i e key replacement you can do so by following the procedure described on page 4 23 Disconnecting the K2600 Key...

Страница 72: ...e Bass and Treble ends of the flat ribbon cable from the keyboard during service be sure that you have reconnected them and reapplied the tape to secure the connectors 1 Place the keyboard upside down...

Страница 73: ...n the bottom enclosure To move the keyboard lift the keyboard up slightly to free the 16 screws from their positions on the bottom enclosure 6 Lift the keyboard up slightly and move it approximately o...

Страница 74: ...he outlines of the natural and sharp keys and the locations and functions of the components described in the following procedures Natural White Key Figure 4 9 Natural White key 76 note keyboard Figure...

Страница 75: ...he keyboard chassis Sharp Black Keys 1 To remove a sharp key first remove the adjacent natural keys as described in the previous procedure 2 Each key has a spring located at the rear of the key Using...

Страница 76: ...rd 2 Remove the 24 screws that secure the Treble Contact Board to the keyboard chassis and remove the Treble Contact Board Replacing the Treble Contact Board 1 Position the Treble Contact Board on the...

Страница 77: ...To remove a keyboard contact strip gently lift and free the strip from its position Be careful not to rip or damage any contact in the process Figure 4 12 Rear view of natural white key 76 note keyboa...

Страница 78: ...bottom enclosure but it has cables connected to the Mod Wheel Assembly and the Keyboard Scanner Board Figure 4 13 K2600X 88 note keyboard bottom 5 Slide the K2600X back onto your work surface 6 Lift t...

Страница 79: ...eel Assembly and connect the Aftertouch flex cables Be sure to reapply the nylon reinforced tape that secures the flex cables to the bottom enclosure 5 Slide the K2600X forward so that you can install...

Страница 80: ...the spring by inserting a dowel 3mm diameter into the spring and pushing down on it slightly Then pull the top of the dowel toward the front of the keyboard This will unhook the spring from the keybo...

Страница 81: ...ecured to the keyboard chassis by a hook Refer to Figure 4 16 You can remove the spring by inserting a dowel 3mm diameter into the spring and pushing down on it slightly Then pull the top of the dowel...

Страница 82: ...Contact Boards 2 Remove the 26 screws that secure the Treble Contact Board to the keyboard chassis and remove the Treble Contact Board Replacing the Treble Contact Board 1 Position the Treble Contact...

Страница 83: ...rd contact strip gently lift and free the strip from its position Be careful not to rip or damage any contact in the process Figure 4 17 Rear view of natural white key 88 note keyboard Replacing the K...

Страница 84: ...remove the locking clips use a standard screwdriver to pry the locking clips off 4 Pry the rod up from the support bracket The key weights remain attached to the rod 5 To remove the key weights from t...

Страница 85: ...support brackets Be certain that the rod is pressed securely into the support brackets 4 Prior to replacing the keys check that each key weight moves freely To do this position a screwdriver at the b...

Страница 86: ...4 36 K2600 K2600X Disassembly Assembly K2600X Keyboard Assembly...

Страница 87: ...cking cable clips Be sure to reapply the clips when connecting cables In some cases tape secures cable connections or fastens cables to the bottom enclosure Always peel back the tape from one side whe...

Страница 88: ...to scroll to Everything Press the OK soft button 4 Use the alphanumeric keypad cursor buttons and the Alpha Wheel to name the file After naming the file press the OK soft button 5 Press the OK soft b...

Страница 89: ...e Run System returns you to normal operation when you have completed any of the other available boot block menu options except the two diagnostic selections If you were running either Run Diags or Fix...

Страница 90: ...system includes more than one disk If you are loading a new operating system be sure to load all disks 7 The unit returns to the Boot Loader main menu after the software installation Installing Objec...

Страница 91: ...ssibility 3 Insert a flat plastic tool plastic knife pen cap etc into one of the openings between the battery and the front of the holder toward the front panel to lift the battery Figure 5 2 Battery...

Страница 92: ...will display the following Figure 5 3 LCD example K2600R Scanner Diagnostics The first line of the display shows the scanner software version The second line displays the procedure to exit the diagno...

Страница 93: ...he result of a front panel button test Note The Scanner Diagnostics for the Front Panel Buttons and the Alpha Wheel are the same for the rack and keyboard models Refer to page 5 6 for the description...

Страница 94: ...slightly At bottom LONG SEC 1 0 At center LONG SEC 1 128 At top section one and two division LONG SEC 1 255 2 0 Keyboard To test the keyboard press any key The key name and number will be displayed tw...

Страница 95: ...depends on the K2600 model you are servicing refer to the following note Note If you are servicing a K2600R rack unit this cable connects to J701 on the Front Panel Scanner Board If you are servicing...

Страница 96: ...up Scanner 1 On the Scanner Board check the signal paths and supplies for U3 U4 and Y1 V A S T Sign Wave on boot up or Fails Sound ROM Sound RAM or VLSI diagnostic tests 1 On the Engine Board check t...

Страница 97: ...ck the stranded wire cable at J1 on the Backlight Board and J104 on the Power Supply Board 2 Check the stranded wire cable at J2 on the Backlight Board 3 Disconnect and reseat the cables 4 Check the s...

Страница 98: ...Board check the DACs AD1865R at locations U2 and U3 input pins 2 and 3 and output pins 12 and 13 Left Channel 1 On the Audio Board check the DACs AD1865R at locations U12 and U13 input pins 2 and 3 an...

Страница 99: ...seat the cables 3 Refer to the Scanner Board schematics 4 Check the signal activity at U1 M37451 on the Scanner Board 5 Trace signal path 6 Find and replace bad component s or order an Scanner Board r...

Страница 100: ...r J804 LCD J814 DC Power J818 DSP BOARD J901 DSP to Dig I O J602 Audio Power J611 Sampler J601 DAC AUDIO BOARD J612 Slider J102 HDD Sec J107 Audio Pwr J101 SYS Sec J106 HDD Pwr J103 Fan J108 SCNR Pwr...

Страница 101: ...loppy Pwr J805 Floppy J801 Sampler J804 LCD J814 DC Power J818 DSP BOARD J901 DSP to Dig I O J903 CPU to DSP J701 Scnr Pwr J702 CPU FRONT PANEL SCANNER BOARD BKLITE J102 HDD Sec J107 Audio Pwr J101 SY...

Страница 102: ...5 16 Troubleshooting K2600R Interconnect Diagram...

Страница 103: ...s lists for the LCD Board and the Final and Keyboard Assemblies K2600R K2600RS K2600 Series All Models K2600R K2600RS Rack Models K2600 Series Keyboard Models All Keyboard Models K2600 K2600S All 76 N...

Страница 104: ...r Board page 6 15 N012104337 Player Control Board page 6 16 N012104341 Control Panel Board page 6 14 N012104345 Slider Board page 6 20 N012104666 Floppy Disk Drive Assembly page 6 15 N012304338 Pitch...

Страница 105: ...0627 3 J803 810 811 N041034004 HEADER 098 SP 4P 22 03 5045 1 J807 N043002141 POLYSWITCH 15V 2 0A 125 SMD 1 R162 N043010201 SW TACK 6mmX3 5mm 160GF ALPS SKHLAC 1 S3 N043010510 SW SLIDER R A SPDT ASC M...

Страница 106: ...7 D4 6 8 10 12 N053000704 DIODE RECT GP SMT 1A S1J 600V SMA 1 D3 N053000802 DIODE SWITCH 1N4148 SMT DL 35 2 D5 9 N053010503 DIODE 70V SCHOTTKY BAR SMD BAS70DICT 2 D1 2 N054000102 TRANS KST3904 SOT 23...

Страница 107: ...10 N051101720 RES TF 330 5 1 8W 1206 4 R3 4 7 11 N051101730 RES CF 1 0K 5 1 8W 1206 18 R5 12 17 71 72 113 120 122 N051101790 RES CF 1 0M 5 1 8W 1206 2 R8 121 N052002422 CAP ELECT 470UF 6 3V 3 5mm SP...

Страница 108: ...27 228 N051080632 RES TF 8 45K 1 1 10W 0805 16 R9 11 13 15 17 20 77 79 81 83 85 88 N051080633 RES TF 15 0K 1 1 10W 0805 16 R29 31 33 35 37 40 97 99 101 103 105 108 N051080635 RES TF 3 57K 1 1 10W 0805...

Страница 109: ...OP16 16W 1 U1 N064001502 IC LINEAR 5V LM7805 TO 220 1 VR1 N064001503 IC LINEAR 5 7905 TO 220 1 VR2 N064003508 IC ANA OPAMP DL BIP NE5532A SOP8 160 29 U4 11 14 34 N263010310 IC AD1865R SOP24 4 U2 3 12...

Страница 110: ...003529 CAP METALIZED FILM 0 47UF 250V 1 N241033801 POWER MODULE 5EFM4 K2600R 1 Part No Description Qty Reference Designation N013039203 CABLE ADD POWER SUPPLY K2600 S X XS R RS 1 N025224508 TAPPING SC...

Страница 111: ...100UF 16V 20 138 SP 5 C20 21 26 27 30 N052002414 CAP ELECT 220UF 16V 2 C6 23 N052004204 CAP ELECT 2200UF 35V 20 RAD 2 C11 12 N052005105 CAP ELECT 100UF 10V RAD 1 C29 N052005108 CAP ELECT 220UF 6 3V RA...

Страница 112: ...038000356 LARGE BUTTON W LED 1 _ K2600R 2 N038000357 LARGE BUTTON W LED 1 _ K2600R 2 N041031210 CONN 1 SP DUAL ROW 14P 057 014 153 1 J702 N041034005 HEADER 098 SP 5P 22 03 5055 1 J701 N042005422 JUMPE...

Страница 113: ...LE ENGINE TO SCAN 330MM K2600R 1 N015000123 TRANSFORMER ASSY K2600R 1 N022002701 EDGE HOLDING SUPPORT 7 9mm 5 N022002702 BUTTON SUPPORT DONG A DABS12R 3 N022002703 SPACER PUSH LOCKING 8 0MM TALL 2 N02...

Страница 114: ...1 N032037112 SAMPLING OPTION INPUT COVER PLATE 1 N032039316 BRACKET ROM RACK ASSY K2600RS 1 N032055901 PLATE COVER KDS I O K2600 X 1 N032059001 PLATE COVER PCB K2600R 1 N033247001 PCB FAB P RAM FAKE...

Страница 115: ...2K 1 1 10W 0805 8 R65 68 133 136 N051080447 RES TF 470 5 1 10W 0805 2 R211 214 N051080464 RES TF 4 64K 1 1 10W 0805 16 R25 28 45 48 93 96 113 116 N051080576 RES TF 57 6K 1 1 10W 0805 8 R21 24 89 92 N0...

Страница 116: ...PAMP DL BIP LO NOIS NE5532A 29 U4 11 14 34 N263010310 IC AD1865R SOP24 4 U2 3 12 13 Part No Description Qty Reference Designation N013027902 CABLE BUTTON BOARD 640M M K2600 1 N043010201 SWITCH TACK 6m...

Страница 117: ...N054001201 TRANSISTOR PNP KTA1271 KSA643CY TO 92 6 Q9 12 14 15 N061013601 IC LOGIC 74HC138 DIP16 1 U2 N061014001 IC LOGIC 74HC541 DIP20 1 U1 N061020501 IC LOGIC 74HC373 DIP20 1 U3 N252003102 CAP ELEC...

Страница 118: ...ignation N025323304 MACHINE SCREW BH M3X4 BLK 4 SCREW N032037511 BRACKET PLAYER CONTROL PCB MOUNTING 1 BRACKET N041030004 HEADER 1 SP 4P 22 27 2041 1 J404 N041033104 HEADER 1 SP WHITE R A 4P 1 J403 N0...

Страница 119: ...300M M K2500 X 1 N051101114 RES CF 56 5 1W METAL OXIDE 1 N052003529 CAP METALIZED FILM 0 47UF 250V 1 N241033601 POWER MODULE 5EFM4S 1 N043010604 FUSE SLOW BLOW 250V 1 25A 5X30MM 1 N043010605 FUSE TIME...

Страница 120: ...1711 CAP ELECT 100UF 25V 20 RAD 2 C16 17 N052001713 CAP ELECT 4700UF 25V 1 C9 N052002401 CAP ELECT 100UF 16V 20 138 SP 5 C20 21 26 27 30 N052002414 CAP ELECT 220UF 16V 2 C6 23 N052004204 CAP ELECT 220...

Страница 121: ...79 80 87 N051100392 RES MF 1M 1 1 8W 1206 1 R76 N051100393 RES TF 1 10M 1 1 8W 1206 1 R82 N051101279 RES TF 4 32K 1 1 8W 1206 1 R90 N051101700 RES CF 0 5 1 8W 1206 3 R4 23 42 N051101704 RES CF 10 5 1...

Страница 122: ...RGE BUTTON W LED 4 K2600 1 BUTTON N035026132 LARGE BUTTON W LED 5 K2600 1 BUTTON N035026133 LARGE BUTTON W LED 6 K2600 1 BUTTON N035026134 LARGE BUTTON W LED 7 K2600 1 BUTTON N035026135 LARGE BUTTON W...

Страница 123: ...ABLE FAN POWER 260MM K2600 X R 1 N013039901 CABLE FLOPPY DATA 610MM K2600 X 1 N013040000 CABLE ENGINE TO AUDIO 365MM K2600 X 1 N013040101 CABLE ENGINE TO SCANNER 120MM K2600 X 1 N013040501 CABLE KEYBO...

Страница 124: ...N032055901 PLATE COVER KDS I O K2600 X 1 N032059301 BRACKET LOCKING ENDCAP K2600 X 2 N033247001 PCB FAB P RAM FAKE 1 N035020711 KNOB ENCODER 52 1 N035027911 LCD WINDOW K2500 1 N035028314 SUPER RIBBON...

Страница 125: ...CONTACT HIGH KEY CONTACT STRIP 12 NOTE BRACKET ROD KEY WEIGHT SUPPORT 12 PO KEY PIVOT BRACKET ROD KEY WEIGHT SUPPORT 4 POS KEY NATURAL A KEY NATURAL B KEY NATURAL C KEY NATURAL D KEY NATURAL E KEY NA...

Страница 126: ...013039801 CABLE FAN POWER 260MM K2600 X R 1 N013039901 CABLE FLOPPY DATA 610MM K2600 X 1 N013040000 CABLE ENGINE TO AUDIO 365MM K2600 X 1 N013040101 CABLE ENGINE TO SCANNER 120MM K2600 X 1 N013040801...

Страница 127: ...T ROM CONNECTOR KYBD 1 N032055901 PLATE COVER KDS I O K2600 X 1 N032059301 BRACKET LOCKING ENDCAP K2600 X 2 N033247001 PCB FAB P RAM FAKE K2600 S X XS R RS 1 N035020711 KNOB ENCODER 52 1 N035027911 LC...

Страница 128: ...CB KEY CONTACT HIGH KEY CONTACT STRIP 12 NOTE BRACKET ROD KEY WEIGHT SUPPORT 12 PO KEY PIVOT BRACKET ROD KEY WEIGHT SUPPORT 4 POS KEY NATURAL A KEY NATURAL B KEY NATURAL C KEY NATURAL D KEY NATURAL E...

Страница 129: ...nt Panel Scanner Board rack models Scanner Front Panel I F page 7 22 Audio Board keyboard models A DACs B DACs Filters 1 of 4 page 7 23 Audio Board keyboard models C DACs D DACs Filters 2 of 4 page 7...

Страница 130: ......

Страница 131: ...0 1 2 D2 BAS70 1N270 1 2 R11 56 1 2 R14 56 1 2 R33 10K 1 2 R36 10K 1 2 R35 10K 1 2 R34 10K 1 2 R19 10K 1 2 R27 10K 1 2 R26 10K 1 2 R25 10K 1 2 R24 10K 1 2 R23 10K 1 2 R22 10K 1 2 R21 10K 1 2 R20 10K 1...

Страница 132: ...R45 1K 1 2 R46 1K 1 2 R165 3K 1 2 R53 1 0K 1 2 R52 4 7M 1 2 R47 2 2K 1 2 R50 4 7K 1 2 R49 2 2K 1 2 R48 4 7K 1 2 Q3 MMBT2222 B C E Q2 MMBT3904 B C E Q1 MMBT3904 B C E R51 4 7K 1 2 R54 1 0M 1 2 C24 1uF...

Страница 133: ...2 R59 2 2K 1 2 R55 2 2K 1 2 D5 LLN4148 1 2 Q5 MMBT2907 C B E Q4 MMBT2907 C B E U10 74HC245 2 A 1 3 A 2 4 A 3 5 A 4 6 A 5 7 A 6 8 A 7 9 A 8 1 DIR 19 G 18 B 1 17 B 2 16 B 3 15 B 4 14 B 5 13 B 6 12 B 7 1...

Страница 134: ...50 I O 42 MSG 48 REQ 40 RST 44 SEL 19 GND 10 21 GND 11 23 GND 12 25 GND 13 27 GND 14 29 GND 15 31 GND 16 33 GND 17 35 GND 18 37 GND 19 1 GND 1 39 GND 20 41 GND 21 43 GND 22 45 GND 23 47 GND 24 49 GND...

Страница 135: ...80 SMAV 85 SMZ 77 TOPEN 72 TOPO 109 SMA 0 122 SMA 10 123 SMA 11 124 SMA 12 125 SMA 13 126 SMA 14 127 SMA 15 2 SMA 16 3 SMA 17 4 SMA 18 5 SMA 19 110 SMA 1 6 SMA 20 10 SMA 21 11 SMA 22 12 SMA 23 13 SMA...

Страница 136: ...1K 1 2 C116 01uF 1 2 C115 01uF 1 2 C110 01uF 1 2 C109 1uF 1 2 C84 1uF 1 2 C80 1uF 1 2 C7 1uF 1 2 C79 1uF 1 2 C86 1uF 1 2 C92 1uF 1 2 C91 1uF 1 2 C88 1uF 1 2 C87 1uF 1 2 C78 1uF 1 2 C83 1uF 1 2 C82 1u...

Страница 137: ...120 1 2 R146 120 1 2 R145 120 1 2 R144 120 1 2 R143 120 1 2 R142 120 1 2 R141 120 1 2 R140 120 1 2 R136 120 1 2 R135 120 1 2 R134 120 1 2 R133 120 1 2 R132 120 1 2 R131 120 1 2 R130 120 1 2 C113 1uF 1...

Страница 138: ...1 17 B 2 16 B 3 15 B 4 14 B 5 13 B 6 12 B 7 11 B 8 U8 74VHC245 2 A 1 3 A 2 4 A 3 5 A 4 6 A 5 7 A 6 8 A 7 9 A 8 1 DIR 19 G 18 B 1 17 B 2 16 B 3 15 B 4 14 B 5 13 B 6 12 B 7 11 B 8 U34 74VHC245 2 A 1 3...

Страница 139: ...A 5 5 A 6 6 A 7 7 A 8 8 A 9 52 D 00 54 D 01 55 D 02 56 D 03 57 D 04 60 D 05 61 D 06 62 D 07 63 D 08 66 D 09 67 D 10 68 D 11 69 D 12 71 D 13 72 D 14 73 D 15 13 KISI0 14 KISI1 15 KISI2 16 KISI3 17 KISI4...

Страница 140: ...00 68 D 01 69 D 02 70 D 03 74 D 04 75 D 05 76 D 06 77 D 07 78 D 08 79 D 09 82 D 10 83 D 11 84 D 12 1 D 13 2 D 14 3 D 15 24 KISI0 27 KISI1 26 KISO 21 R W 30 SMR W 20 CS 23 DTACK 22 RESET 29 SMCAS 28 S...

Страница 141: ...LY1D 17 DLY1D 16 BDLY1D 16 DLY1D 16 BDLY1D 16 BDLY2A 09 00 BDLY2A 09 00 4 D1 DLY1A 09 00 DLY1A 09 BDLY1A 09 DLY1A 09 BDLY1A 09 DLY1A 08 BDLY1A 08 DLY1A 08 BDLY1A 08 DLY1A 07 BDLY1A 07 DLY1A 07 BDLY1A...

Страница 142: ...VCC1 6 VCC2 21 VCC3 31 LCAS 29 OE 14 RAS 30 UCAS 13 W R117 1K 1 2 R115 1K 1 2 R114 1K 1 2 R118 1K 1 2 R120 1K 1 2 R116 1K 1 2 R113 1K 1 2 R119 1K 1 2 C100 1uF 1 2 C106 1uF 1 2 C104 1uF 1 2 C102 1uF 1...

Страница 143: ...11 Y4 10 Y5 9 Y6 7 Y7 U40 74VHC138 1 A 2 B 3 C 6 G1 4 G2A 5 G2B 15 Y0 14 Y1 13 Y2 12 Y3 11 Y4 10 Y5 9 Y6 7 Y7 C115 470uF 6 3V 1 2 C116 100uF 6 3V 1 2 R8 1M 1 2 R5 1K 1 2 R122 1K 1 2 C9 1uF 1 2 C128 1u...

Страница 144: ...1 2 R40 10 1 2 R31 10 1 2 R29 499 1 1 2 R21 15k 1 2 R35 1k 1 2 R30 15k 1 2 R2 10 0K 1 1 2 R1 10 0K 1 1 2 R4 10 0K 1 1 2 R16 10 0K 1 1 2 R12 10 0K 1 1 2 R11 10 0K 1 1 2 R28 100 1 2 R18 1K 1 2 R6 1K 1...

Страница 145: ...Q1 PN2222 C3 25V 100uF CCFT INV 3 1 2 U1 4 5 VIN GND OUT2 OUT1 GND 3 1 2 4 HI VOLT GND SENSE IN SENSE OUT 4PIN 1ROW 200SP YOUNG CHANG CO LTD K2500R BACKLIGHT INVERTER Filename Eng Mfg Doc Date By Sht...

Страница 146: ...C47 68PF 2 1 2 C43 2200PF 1 1 2 C35 180PF 2 1 2 C23 DNS 1 2 C31 2200PF 1 1 2 C58 150PF 2 1 2 C54 2200PF 1 1 2 C46 68PF 2 1 2 C42 2200PF 1 1 2 C34 180PF 2 1 2 C21 DNS 1 2 C30 2200PF 1 1 2 C65 2200PF 1...

Страница 147: ...S 1 2 C92 2200PF 1 1 2 C119 150PF 2 1 2 C115 2200PF 1 1 2 C107 68PF 2 1 2 C103 2200PF 1 1 2 C95 180PF 2 1 2 C85 DNS 1 2 C91 2200PF 1 1 2 C118 150PF 2 1 2 C114 2200PF 1 1 2 C106 68PF 2 1 2 C102 2200PF...

Страница 148: ...1 30 1K 1 2 R168 30 1K 1 2 R180 3 57K 1 2 R188 30 1K 1 2 R186 30 1K 1 2 R179 3 57K 1 2 R187 30 1K 1 2 R185 30 1K 1 2 R158 3 57K 1 2 R170 30 1K 1 2 R167 30 1K 1 2 R137 3 57K 1 2 R189 200 0 1 1 2 R190 2...

Страница 149: ...2 R203 10 0K 1 2 R202 10 0K 1 2 R195 10 0K 1 2 R194 10 0K 1 2 R196 10 0K 1 2 R201 10 0K 1 2 R200 10 0K 1 2 R199 10 0K 1 2 R198 10 0K 1 2 R197 10 0K 1 2 R220 16 1 2W 1 2 R205 10K 1 2 C184 0 1uF 1 2 C1...

Страница 150: ...10K 1 2 R3 100 OHM 1 2 R2 1M 1 2 R10 10K 1 2 R12 100 1 2 C4 1UF 1 2 C5 1uF 1 2 C6 1uF 1 2 C7 1uF 1 2 INT1 D0 D1 D2 D3 D4 D5 D6 D7 WE RD WR CS A0 RDY INT3 INT2 E A00 A01 A02 A03 A04 A05 A06 A07 TxD PW...

Страница 151: ...C47 68PF 2 1 2 C43 2200PF 1 1 2 C35 180PF 2 1 2 C23 DNS 1 2 C31 2200PF 1 1 2 C58 150PF 2 1 2 C54 2200PF 1 1 2 C46 68PF 2 1 2 C42 2200PF 1 1 2 C34 180PF 2 1 2 C21 DNS 1 2 C30 2200PF 1 1 2 C65 2200PF 1...

Страница 152: ...DNS 1 2 C92 2200PF 1 1 2 C119 150PF 2 1 2 C115 2200PF 1 1 2 C107 68PF 2 1 2 C103 2200PF 1 1 2 C95 180PF 2 1 2 C85 DNS 1 2 C91 2200PF 1 1 2 C118 150PF 2 1 2 C114 2200PF 1 1 2 C106 68PF 2 1 2 C102 2200P...

Страница 153: ...7K 1 2 R171 30 1K 1 2 R168 30 1K 1 2 R180 3 57K 1 2 R188 30 1K 1 2 R186 30 1K 1 2 R179 3 57K 1 2 R187 30 1K 1 2 R185 30 1K 1 2 R158 3 57K 1 2 R170 30 1K 1 2 R167 30 1K 1 2 R137 3 57K 1 2 R189 200 1 1...

Страница 154: ...203 10 0K 1 2 R202 10 0K 1 2 R195 10 0K 1 2 R194 10 0K 1 2 R196 10 0K 1 2 R201 10 0K 1 2 R200 10 0K 1 2 R199 10 0K 1 2 R198 10 0K 1 2 R197 10 0K 1 2 R220 16 1 2W 1 2 R205 10K 1 2 C184 0 1uF 1 2 C185 0...

Страница 155: ...1 B E C Q12 2SA1271 B E C Q13 2SA1271 B E C Q14 2SA1271 B E C U2 74HC138 1 A 2 B 3 C 6 G1 4 G2A 5 G2B 15 Y0 14 Y1 13 Y2 12 Y3 11 Y4 10 Y5 9 Y6 7 Y7 Q16 2N2222 B C E Q3 2N2222 B C E Q8 2N2222 B C E Q7...

Страница 156: ...IN RA 098SP SLIDERS 7 6 2 4 3 1 5 5VREF OUT MUXA0 MUXA1 MUXA2 GND1 GND2 YOUNG CHANG CO LTD Young Chang Co Ltd is prohibited Duplication without the express written consent of Filename Rev A Ver 1 K250...

Страница 157: ...NS 1 2 R24 100 1 2 R4 0 ohm 1 2 R1 1M 1 2 R10 1K 1 2 R18 10K 1 2 R19 10K 1 2 R21 10K 1 2 R56 10K 1 2 R55 10K 1 2 R2 10 ohm 1 2 R22 10K 1 2 R3 1K 1 2 INT1 D0 D1 D2 D3 D4 D5 D6 D7 WE RD WR CS A0 RDY INT...

Страница 158: ...1 2 R94 1K 1 2 R99 10K 1 2 R93 1K 1 2 R98 10K 1 2 R97 10K 1 2 R92 1K 1 2 R96 10K 1 2 R73 4 7K 1 2 R76 1 0M 1 1 2 R77 100 1 2 R82 1 1M 1 1 2 R84 165 0K 1 1 2 R83 100 0K 1 1 2 R86 100 0K 1 1 2 R87 10K 1...

Страница 159: ...cc AOUT 74HC4051 6 11 10 9 13 14 1 5 4 7 8 16 3 U2 R1 100K R2 100K R3 100K R4 100K R5 150K R6 1 0K R7 100K R8 100K R9 2 2K R10 47ohm R11 91ohm R12 100K TLC2272 6 5 8 4 7 U3a R14 100K 1 2 3 1 2 3 JP1 1...

Страница 160: ...thout the express written consent of Young Chang Co Ltd is prohibited Young Chang R D Inst Waltham MA USA Filename Eng Mfg Doc Date By Sht Rev RAV1 021070a1 ds2 021070 9 2 2 95 H Chamberlin 1 of 1 S11...

Страница 161: ...2 5 R13 130 5 1 16W 1 2 R15 82 5 1 1 16W 1 2 R16 130 5 1 16W 1 2 R18 82 5 1 1 16W 1 2 R11 4 7K 5 1 16W 1 2 R19 10K 5 1 16W 1 2 R20 10K 5 1 16W 1 2 R21 10K 5 1 16W 1 2 R14 750 5 1 16W 1 2 R17 750 5 1...

Страница 162: ...NPO 1 2 C16 68pF 50V NPO 1 2 C14 68pF 50V NPO 1 2 C19 68pF 50V NPO 1 2 C12 68pF 50V NPO 1 2 C17 68pF 50V NPO 1 2 C15 68pF 50V NPO 1 2 C20 68pF 50V NPO 1 2 C25 68pF 50V NPO 1 2 C22 68pF 50V NPO 1 2 C2...

Страница 163: ...330 5 1 16W 1 2 R28 220 5 1 16W 1 2 R26 330 5 1 16W 1 2 R25 220 5 1 16W 1 2 R31 1k 5 1 16W 1 2 R27 110 5 1 16W 1 2 R32 110 5 1 16W 1 2 R33 110 5 1 16W 1 2 R37 51 5 1 16W 1 2 R36 51 5 1 16W 1 2 R35 51...

Страница 164: ...207 3 4 18 1 2 6 19 29 30 17 CS2 20 CS3 9 A10 12 A11 11 A12 14 A13 13 A14 16 A15 15 A16 8 A19 5 A21 7 A8 10 A9 28 D12 26 D13 24 D14 22 D15 27 D4 25 D5 23 D6 21 D7 TP4 TP3 TP2 TP1 C3 10uF 1 2 C2 1 uF 1...

Страница 165: ...1 C6 1uF AGnd 5Vana 1 2 R10 4 75K 2 1 R17 1 00K AGnd 2 1 R7 10M 2 1 C10 22uF 8 7 6 5 U3 _ 4 1 2 R6 100K AGnd AD706 2 1 C9 1uF AGnd 5Vana 2 1 C8 1uF AGnd 5Vana 5Vana 1 2 C54 1uF AGnd 1 2 C57 1uF AGnd C...

Страница 166: ...2 b I I G C L R b 39 38 37 36 34 33 32 31 29 I O I O I O I O I O I O I O I O I O O E 1 b I G C L K I EPM7032 U28 R34 10 2 1 R71 10K 2 RCK SIN SRCK OE SCLR 5V 5V 1 WCK BCK SDATA U16 74HC595 GND GND D0...

Страница 167: ...C55 1uF OCLK 1 K6 A_BCK 1 K5 2 B1 5V U14 5V 2 1 R43 2 21K 4 5 6 74HC08 5V OPTICAL 1 2 C5 01uF C47 6 8uF 1 2 19 18 17 20 16 9 10 11 TXSYNC 2 L1 TXDATA 2 K1 U21 CS8402 V M1 M0 VD GND C U C7 RST TST TXP...

Страница 168: ...33078 2 3 1 MC33078 6 5 7 4 8 2 R66 402 1 FGnd 2 R62 402 1 C74 68pF 2 1 2 1 L9 FE Bead 12V 7 9 NC RL2 R IN 1 A3 A D SOURCE 2 K4 LIN 1 A6 8 10 1 2 5 L4 1 6 L4 4 2 NC RL2 3 RMIX LMIX RMON LMON 1 2 4 5 3...

Страница 169: ...ard 3 16 Power Supply Board 3 9 Sampling Board 3 19 Small Digital I O Board 3 5 Top Cover 3 2 Transformer 3 10 Audio Board cables keyboard models 4 7 cables rack models 3 3 parts list keyboards models...

Страница 170: ...yboard models 4 8 replacing keyboard models 4 8 replacing rack models 3 4 Digital IO diagnostic test 2 11 Disassembly instructions 76 note Keyboard Assembly contact boards 4 26 disconnecting the keybo...

Страница 171: ...ket 3 14 replacing the top cover 3 12 Front Panel Scanner Board parts list rack models 6 10 removing rack models 3 15 replacing rack models 3 15 I I O Port diagnostic test 2 5 K Keyboard Dead 5 13 Dea...

Страница 172: ...ront Panel Buttons 5 6 Front Panel Sliders keyboard models 5 7 Keyboard keyboard models 5 8 Large Ribbon keyboard models 5 8 Small Ribbon keyboard models 5 8 Switch Pedals 5 8 wheels keyboard models 5...

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