Casio_AP-24_Service_Manual电路图.pdf

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1、ELECTRONIC KEYBOARD AP-24 JUN. 2004 AP-24 RadioFans.CN 收音机爱 好者资料库 INDEX CONTENTS Specifications - 1 Block Diagram - 2 Circuit Description - 3 Printed Circuit Board - 4 Disassembly - 6 Diagnostic Program- 15 Schematic Diagrams- 17 Exploded View - 26 Parts List- 28 RadioFans.CN 收音机爱 好者资料库 1 SPECIFICAT

2、IONS GENERAL Keyboard:88 piano keys (with touch response) Polyphony:32 notes, maximum Tones:10 tones (including two low-range tones for split), with layer and split Digital Effects:Reverb (4 types), Chorus (4 types) Demo Tunes: Number of Tunes: 8 Playback: Repeat (all tunes) User Songs: Number of So

3、ngs: Up to 10 download songs Capacity: Approximately 7600 notes (45 kilobytes) Memory: Operations: Real-time recording, playback Capacity: Approximately 5,200 notes (2 tracks) Memory Backup: Built-in lithium battery (Battery Life: 5 years) Pedals:Damper, Soft/Sostenuto (Selectable) Other Functions:

4、Metronome: Beat (6 types), Tempo ( = 30 to 255) Touch Select: 3 types, off Transpose: 1 octave (F# to C to F) Tuning: A4 = 440Hz 50 cents (adjustable) MIDI:16 multi-timbre receive Input/Output: Headphones: Stereo standard jacks 2 MIDI (OUT) (IN) Speakers:12cm 2 (Output: 20 W + 20 W) Power Supply:AP-

5、24: 120V AP-24V: 220-240V Power Consumption:AP-24: 55W AP-24V: 58W Dimensions: Digital Piano (without stand): 137.2 u 42.3 u 20.5 cm (54 1/16 16 11/16 8 1/16 inch) Digital Piano: 138.5 43.2 81.0 cm (54 9/16 17 31 15/16 inch) Weight: Digital Piano (without stand): approximately 34.0 kg (75.0 lbs) Dig

6、ital Piano: Approximately 44.0 kg (97.0 lbs) RadioFans.CN 收音机爱 好者资料库 2 BLOCK DIAGRAM Power AMP LA4636 IC203 Filter NJM2068M IC12 D/A Converter UPD63200GS IC8 RESET IC15, Q7 Filter NJM2068M IC11 ROM(8MB) MR27V3202F 16NTNZ08 IC5 Main Volume Mute BCK, SD0, LRCK RXDITXDO HEADPHONE MIDI Keyboard LED Butt

7、on/LED Controller UPD65881GK-002-9ET IC601 MPU ML6763B-NNTC-116 IC4 Button IN OUT PEDAL FI010 SI010 KC07 MA120 MD015 RAM(128K16 Static RAM) CY62126DV30LL55ZIT IC6 VC VF VD5(5V) VA15(15V) Power Supply IC202, Q205, D207 MA116 MD015 SPSP RESET MOUT MIN DAMP, SOFT, STENT LR LINE OUT LINE IN L R L R Filt

8、er NJM2068M IC205 Filter NJM2068M IC204 3 CIRCUIT DESCRIPTION KEY MATRIX FI KC SI LSI (IC4) ML6763B-NNTC-116 Second contactFirst contact 12 NOMENCLATURE OF KEYS F#3G#3A#3C#4D#4F#4G#4A#4C#5D#5F#5G#5A#5 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6 D#3 C2 D2 E2 F2 G2 A2 B2 C3 D3 E3B6A6G6F6E

9、6D6C7 C#3A#2G#2F#2D#2C#2 C1 D1 E1 F1 G1 A1 B1A0 B0 A#1A#0G#1F#1D#1C#1A#6G#6F#6D#6C#6 B7A7G7F7E7D7C8 A#7G#7F#7D#7C#7 BUTTON MATRIX KC0KC1KC2KC3KC4KC5KC6KC7 FI0A01A0#1B01C11C1#1D11D1#1E11 SI0A02A0#2B02C12C1#2D12D1#2E12 FI1F11F1#1G11G1#1A11A1#1B11C21 SI1F12F1#2G12G1#2A12A1#2B12C22 FI2C2#1D21D2#1E21F21F

10、2#1G21G2#1 SI2C2#2D22D2#2E22F22F2#2G22G2#2 FI3A21A2#1B21C31C3#1D31D3#1E31 SI3A22A2#2B22C32C3#2D32D3#2E32 FI4F31F3#1G31G3#1A31A3#1B31C41 SI4F32F3#2G32G3#2A32A3#2B32C42 FI5C4#1D41D4#1E41F41F4#1G41G4#1 SI5C4#2D42D4#2E42F42F4#2G42G4#2 FI6A41A4#1B41C51C5#1D51D5#1E51 SI6A42A4#2B42C52C5#2D52D5#2E52 FI7F51F

11、5#1G51G5#1A51A5#1B51C61 SI7F52F5#2G52G5#2A52A5#2B52C62 FI8C6#1D61D6#1E61F61F6#1G61G6#1 SI8C6#2D62D6#2E62F62F6#2G62G6#2 FI9A61A6#1B61C71C7#1D71D7#1E71 SI9A62A6#2B62C72C7#2D72D7#2E72 FI10F71F7#1G71G7#1A71A7#1B71C81 SI10F72F7#2G72G7#2A72A7#2B72C82 KI0KI1 KC0CONTROL KC1SPLITMETRONOME KC2START/STOPRECORD

12、 4 PRINTED CIRCUIT BOARD MAIN PCB M420-MAA1 Bottom view Top view 5 SUB PCB M420-PSA1 Bottom view Top view CONSOLE PCB M420-PSA3 LED PCB M420-PSA4 POWER SUPPLY PCB M420-ACA1JACK PCB M420-PSA2 6 DISASSEMBLY I To remove the piano from the stand 1. Remove the pedal plug from the pedal connector on the b

13、ottom of the piano, and then remove the pedal cord from the clip. 2. Remove two butterfly bolts. Slide the piano toward the rear side, and then remove it from the brackets. Bracket Butterfly bolt A screw Front side Rear side B screws C screws Pedal plug Clip I To remove the pedal from the stand 1. R

14、emove the two B screws and six C screws.2. Remove four screws. 7 I To remove the top board 1. Remove eight screws.2. Slide the top board toward the front side. Next, lift the top board and remove it from the piano. I To remove the keyboard cover 1. Close the keyboard cover. 2. Remove one screw and t

15、he bracket. 3. Lift the gear part upward(1), and then slide the keyboard cover toward the rear side (2) to remove it. 1 2 1 2 8 I To remove the keyboard 1. Remove the two A screws on the front side and the panel. 2. Remove the three C screws on the back side. Next, remove the eight B screws on the f

16、ront side and remove the bracket. Front side Back side A screw B screws C screws 9 3. Remove 19 screws on the back side. Next, remove three screws and one FPC on the front side, and then remove the key ASSY. Back side Front side 10 2. Remove the cushion (1), pull the hammer (2), and then remove the

17、key from the hammer (3). 3. Insert the edge of the tweezers as shown in part a of the below figure to remove the key. 1 2 3 a Seven PinsFour Pins 1 22 4. Remove eight rubber keys. 5. Remove 32 screws and the key PCB. *Precautions when assembling the rubber keys The length of this only one rubber key

18、 is different. The numbers of pins on the upper and lower sides are different. Insert the pins and fix them tightly. Eight PinsThree Pins I To remove the key PCB 1. Remove two screws and the bracket. 12 3 11 2 3 5SR 5SL 5CL5CR 1 1S 4 I To remove the PCB 2. To remove the M420-PSA1 PCB Remove eight sc

19、rews, five connectors, and five lead wires. 1. To remove the M420-MAA1 PCB Remove six screws and two connectors. S 3. To remove the M420-ACA1U PCB Remove four lead wires, one connector, and four clips. 12 SLSR CRCL 4. To remove the transformer Remove four screws and seven lead wires. 5. To remove th

20、e speaker Remove eight screws and two connectors. 13 I To remove the M420-PSA4 PCB 1. Remove six screws and the front board. 2. Remove two screws and the PSA4 PCB. I To remove the M420-PSA2 PCB and the M420-PSA3 PCB 1. Remove three screws.2. Remove two screws and the switch. 14 3. Remove two screws

21、and the bracket. 5. Remove one screw and one volume knob, and then remove the M420-PSA3 PCB. 4. Remove two nuts and the M420-PSA2 PCB. 15 DIAGNOSTIC PROGRAM I Initial Setup 1. Connect an AC adaptor. 2. Connect a Pedal. 3. “Main” volume: MAX. NOTE: If there is no pedal cable, pedal check can be skipp

22、ed. I How to start diagnostic program 1. Press the “POWER” button while pressing the “METRONOME” buttons. 2. Release the “POWER” button first while still pressing the “METRONOME” buttons. All the LEDs light and the test mode boots. I Diagnostic program 1. Automatic Test 1 RAM CHECK * When an error i

23、s found in RAM, “USER_SONG” LED lights. 2 ROM CHECK * When an error is found in ROM, “SPLIT” LED lights. * The confirmation chord of C4, E4 and G4 sounds. 3 LED CHECK The LED continues to light in the order of USER_SONG ? PART(L) ? PART(R) ? SPLIT. 2. BUTTON check 1 Press “CONTROL” button. * The con

24、firmation chord of C4, E4 and G4 sounds. 2 Press the buttons in the following order. (1) “METRONOME” Button * The confirmation tone of C6 sounds. (2) “RECORD” Button * The confirmation tone of C6 sounds. (3) “START/STOP” Button * The confirmation tone of C6 sounds. (4) “SPLIT” Button * The confirmat

25、ion tone of C6 sounds. (5) “CONTROL” Button * The confirmation chord of C4, E4 and G4 sounds. 3. Pedal check (If there is no Pedal, this check can be skipped) 1 Press “CONTROL” button. *The confirmation chord of C4, E4 and G4 sounds. 2 Press the “DAMPER” pedal. * The confirmation tone of C4 sounds a

26、nd “PART(R)” LED lights. 3 Press the “SOFT” pedal. * The confirmation tone of C4 sounds and “PART(L)” LED lights. 16 4. Headphone check 1 Press “CONTROL” button. * The confirmation chord of C4, E4 and G4 sounds. 2 Connect the headphone to the jack. * “PART(R)” LED lights. 3 Remove the headphone from

27、 the jack. * “PART(L)” LED lights. 4 Connect the tuning meter to the jack. * “PART(R)” LED lights. 5 Press A4 key. * Make sure that the tuning meter is set at 440 2 cents. 6 Remove the tuning meter from the jack. * “PART(L)” LED lights. 5. MIDI IN/OUT check (If there is no MIDI cable, this check can

28、 be skipped) 1 Connect MIDI IN and MIDI OUT terminals with a MIDI cable. 2 Press “CONTROL” button. * The confirmation chord of C4, E4 and G4 sounds. * “PART(L)” LED lights. 3 Press “A4 KEY” button. * The confirmation chord of C4, E4 and G4 sounds. 6. ROM version check Version: 1.20 * LED should be i

29、n the following state. USER_SONG LED:Turn on PART(L) LED:Turn off PART(R) LED:Turn off SPLIT LED:Turn off 7. The diagnostic program ends. 17 SCHEMATIC DIAGRAMS MAIN PCB M420-MAA1 18 SUB PCB M420-PSA1 19 JACK PCB M420-PSA2 20 CONSOLE PCB M420-PSA3 21 LED PCB M420-PSA4 22 POWER SUPPLY PCB M420-ACA1 23

30、 Keyboard PCB MPCK-KYA1 24 Keyboard PCB MPCK-KYB2 25 Keyboard PCB MPCK-KYA3 26 EXPLODED VIEW 7 6 41 20 38 37 36 27 1 2 16 4 3 40 39 8 2232 29 30 31 25 28 23 24 26 33 34 35 11 14 15 12 5 19 99-1 18 1711 12 13 10 21 27 x4 x6 x1 x2 x2 x2 x2 x2 Clip Pedal plug Connecting the Pedal 42 43 46 48 49 50 4445

31、4445 47 28 Notes:This parts list does not include the cosmetic parts, which parts are marked with item No. R-X in the exploded view. Contact our spare parts department if you need these parts for refurbish. 1.Prices and specifications are subject to change with- out prior notice. 2.As for spare part

32、s order and supply, refer to the GUIDEBOOK for Spare parts Supply, published seperately. 3.The numbers in item column correspond to the same numbers in drawing. PARTS LIST AP-24 NItemParts codeParts nameSpecificationQTY Price CodeR Remarks MAIN PCB N11016 4281PCB ASSY/MAINTK-RJM503852*0011DWA BT1 10

33、05 2229 BATTERYCR2032/1HF11 AGC CN3 3501 7259 CONNECTOR30FMZ-BT1 AFC CN1 3501 3465 CONNECTORB11B-PH-K-S1 ACC CN5 3500 5847 CONNECTORB12B-PH-K-S1 ABC IC9 6932 0063 ICR1151N001C-TR1 ANC IC7 1012 3003 ICTC74VHCT08AFT(EL)1 ACC IC1 1004 0865 ICTC7SH04FU(TE85L)1 AAC IC10,11 1004 0647 ICTC7SH08FU(TE85L)2 A

34、AC IC2 6930 9994 ICTC7SH32FU(TE85L)1 ABC IC3 1011 6307 ICTC7SZ126FU(TE85L)1 ABC IC8 2105 6665 ICUPD63200GS-E11 AXC N IC6 1015 8046 MEMORYCY62126DV30LL55ZIT1 AVC N IC5 1016 4081 MEMORYMR27V3202F16NTNZ081 BFC Q6 2259 2764 TRANSISTOR2SB1188T100Q1 ABC Q7 2253 0715 TRANSISTOR2SD1664T100Q1 AAC Q5 1011 646

35、1 TRANSISTORKTC4075GR-RTK1 AAC PSA1 PCB N21016 4287PCB ASSY/PSA1JTK-RJM503835*0011 DBB 120V N21016 4288PCB ASSYPSA1ETK-RJM503886*0011 DBB 230V Q1,2,3,4 1007 9927 TRANSISTORKTC3199GR-AT4AAC CN9 3501 7371 CONNECTORB6B-EH1AAC CN19 1008 1222 CONNECTORHDC-052S-021AFC FU1 1005 2231 FUSE51MS010L1ACA 120V F

36、U1 1005 4029 FUSE50T010H1ACA 230V FU2,3 1005 2230 FUSE51MS040L2ACA 120V FU2,3 1005 4030 FUSE50T040H2ACA 230V IC1 1004 3418 ICLM4765T1BCC IC4,5 2121 0072 ICNJM2068DD2ADC IC2 2114 5796 ICNJM78M05FA1AEC IC3 2114 5794 ICNJM78M15FA1AEC PS2A,3A PCB N31016 4306PCB ASSY/PSA2TK-RJM503837*001 1CEC N41016 4308

37、PCB ASSY/PSA3TK-RJM503839*001 1BVB N D2,3,4 1016 4051 LEDKM2520SRC36-FPB3ABX VR1 6930 8726 VARIABLE RRK09K12C0D0W1AIX D1 1013 5479 LEDLT2P71-81-M1-S011AAX SW1,2,3,4,5 1004 7536 SWITCHSKQNAED0105AAX MAIN CASE UNIT N51016 4276CASE ASSY/MAINTK-RJM503766*0011 ECC N61016 4274COVER ASSY/KEYTK-RJM503765*00

38、1 1CZC N71016 4275BOARD ASSY/TOPTK-RJM503763*001 1CXC N81016 4284PCB ASSY/ACA1UTK-RJM503880*0011 BAB 120V FU1 1004 7399 FUSE 51MS032L1ACA 120V N81016 4286PCB ASSY/ACA1ETK-RJM503882*0011AZB 230V FU1 1004 7508 FUSE 50T025H1ACA 230V N91016 4278CORD ASSY/ACTK-RJM503864*0021 AMC 120V 91004 5707 CORD SETB

39、C2NC-M001A1BDC For UK 91010 0792 CORD SETINQ.1258(1)1APC For Korea 91004 5706 CORD SETEC2NC-M001A1AMC For Euro N9-11016 4279INLET ASSY/ACTK-RJM503865*0011 AHC 230V 101005 4031 TRANSFORMERTE-427-1M11CWC 120V 101005 4032 TRANSFORMERTE-427-2M11CWC 230V 111005 2227 SPEAKERS12J99A2CDC - 29 - NItemParts c

40、odeParts nameSpecificationQTY Price CodeR Remarks 121005 2226 SPEAKER NETM441205-0012ACX 131005 2365 SIDE BLOCK/RM141157-0011ADX N141016 3747 SIDE BLOCK/L M141156-002V01 1ADX N151016 4307SW ASSY/POWERTK-RJM503866*001 1ARC N161016 4451RUBBER/KEYRJM503784-001V01 1AFC 171005 2232 KNOB/RTRM341402-0011AE

41、C 186924 5260 BUTTON/POWERM340318-0011AAC N191016 4303BOARD ASSY/FRONTTK-RJM503767*001 1CIC Keyboard UNIT N201016 4291KEY ASSYTK-RJM504178*0011 EHA N211016 4305CHASSIS ASSYTK-RJM504180*001 1DKC 221013 5317BLACK KEYRJM502797-001V01 36ACC 231013 5426WHITE KEY/CEGBRJM502862-001V01 7ATC 4pcs-1set 241013

42、 5427WHITE KEY/DFARJM502863-001V01 7AQC 3pcs-1set 251013 5428WHITE KEY/BRJM502794-001V01 1AGC 261013 5429WHITE KEY/SARJM502795-001V01 1AJC 271013 5430WHITE KEY/SCRJM502796-001V01 1AJC 281013 5435HAMMER ASSY/W1TK-RJM503155*001 13ALC 291013 5436HAMMER ASSY/W2TK-RJM503216*001 13ALC 301013 5437HAMMER AS

43、SY/W3TK-RJM503217*001 13ALC 311013 5438HAMMER ASSY/W4TK-RJM503218*001 13ALC 321013 5439HAMMER ASSY/B1TK-RJM503219*001 9AKC 331013 5440HAMMER ASSY/B2TK-RJM503220*001 9AKC 341013 5442HAMMER ASSY/B3TK-RJM503221*001 9AKC 351013 5443HAMMER ASSY/B4TK-RJM503222*001 9AKC 363719 5442 CABLEN30315B1B05-UL28961

44、AOC 371013 3656KEY RUBBERRJM502920-001V017AKC 381013 3635KEY RUBBERRJM502921-001V011AGC 391013 3488PCB ASSY/KYATK-RJM503365*0011BIC 2pcs-1set 401013 3482PCB ASSY/KYBTK-RJM503366*0011BCC PANEL ASSY N411016 4289PANEL ASSYTK-RJM503770*0011BVC STAND N421016 4309SCREW SETTK-RJM503810*001 1 ANB N431016 09

45、61STAND BOARD/BACKRJM503742-001V01 1 BNC N441016 4310FOOT ASSYTK-RJM503823*001 2 BAC N451016 0973FOOT /BRJM503826-001V01 2 AAC N461016 0963STAND BOARD/RRJM503744-001V01 1 BSC N471016 0962STAND BOARD/LRJM503743-001V01 1 BSC N481016 4311BOARD ASSY/PEDALTK-RJM503776*001 1 CHC N491016 4313PEDAL ASSYTK-R

46、JM503901*001 1 BVC N501016 4048 CABLESMR-3P-155-M4201 AIB ACCESSORY -1005 4066STAND ASSY/MUSICTK-M241576*2(M427) 1 CVC For US -1005 2234STAND ASSY/MUSICTK-M241576*1(M427) 1 CHC Except US Notes: N- New parts Q-Quantity used per unit - 30 - CASIO TECHNO CO.,LTD. Overseas Service Division 6-2, Hon-machi 1-Chome Shibuya-ku, Tokyo 151-8543, Japan