Casio_AP-40_Service_Manual电路图.pdf

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1、DIGITAL PIANO AP-40 AP-40 AUG. 2000 Ver.1 Oct. / 2000 RadioFans.CN 收音机爱 好者资料库 INDEX CONTENTS Page Specifications .1 Block Diagram.2 PCB Layout .3 Disassembly Instructions .4 Circuit Description .8 Major Waveforms .10 Printed Circuit Board .11 Troubleshooting .12 Wiring Diagram .16 Exploded View .17

2、Parts List .19 Schematic Diagrams .22 RadioFans.CN 收音机爱 好者资料库 1 SPECIFICATIONS GENERAL Keyboard:88 piano keys (with touch response) Polyphonic:32 notes, maximum Tones: 10 (including two bass tones) Tuning Curves: 3 (preset for each tone) Layer: Adjustable volume Split: Split point, adjustable volume

3、 Digital Effects:Reverb (4 types), Chorus, Tremolo, Brilliance Demo Tunes: Number of Tunes: 8 Playback: Repeat (all tunes, one tune) Memory: Operations: Real-time recording, playback Number of Tracks: 2 (Track A, Track B) Capacity: Approximately 5,000 notes (total of 2 tracks) Memory Backup: Built-i

4、n lithium battery (Battery Life: 5 years) Song Lesson: Number of Tunes: 80 Playback: All song repeat, specific song Part Off: L, R Phrase Repeat Pedals:Damper, Soft, Sostenuto Other Functions: Metronome: Beat (6 types), Tempo ( = 30 to 300) Touch Select: 3 types Transpose: 1 octave (F# to C to F) Tu

5、ning: A4 = 440Hz 13Hz (adjustable) Temperament: 7 types Baroque pitch MIDI:16 multi-timbre receive Input/Output: Headphones: Stereo standard jacks 2 LINE OUT (R)(L): Monaural standard jacks 2 Output impedance: 22K Output voltage: 2.0V (RMS) MAX LINE IN (R)(L):Monaural standard jacks 2 Input impedanc

6、e: 30K Input voltage: 200mV MIDI (OUT) (IN) Speakers: 16cm 2, 5cm 2 (Output: 30W + 30W) Power Supply:120V (for U.S.A.), 120V, 220V, 230V and 240V (for other countries) AC household current via AC power cord supplied with piano. Power consumption:70W (with 120V AC), 90W (with 220V, 230V and 240V AC)

7、Dimensions: CELVIANO Only: 139.0 54.0 24.9 cm (54 3/4 21 1/4 9 13/16 inch) CELVIANO and Stand: 139.0 54.0 88.4 cm (54 3/4 21 1/4 34 13/16 inch) Weight: CELVIANO Only: approximately 48.5kg (107.1 lbs) CELVIANO and Stand: approximately 63.6kg (140.4 lbs) RadioFans.CN 收音机爱 好者资料库 2 BLOCK DIAGRAM SOLM, S

8、OLPBDK, WOK1, SORM, SORP FI0 10 SI0 10 DSP HG51B155FD LSI 7 RAM 256K TC55257DFL-70L ROM 8M LSI2 LSI3 MSM538002E- W1-GS-K CPU HD6435328RF35F LSI1 PEDAL MIDI INOUT ROM 24M MX23C2410MC- 12CA58 RAM 256K 2 LSI8,9 LSI6 TC55257DFL-70L 2 Keyboard Controller HG52E35P LSI10 Switch & LED Controller uPD65005GF-

9、419 LSI301 D/A Converter uPD6376GS D/A Converter uPD6376GS LSI 5LSI 4 Filter Mixer, Mute Circuit Power Amp. STK4132MK IC405 RA0 22 RD0 15 EA0 14 ED0 15 D0 7 D0 7 L18 28 KI0 3 LA LG, LP LK8 14LEDs Buttons Keyboard KC0 7 Main Volume AVCC AVDD AVFF VDD +15V +5V 15V +5V Power Switch Power Transformer T1

10、01 Reset IC MB3771PF IC5 RST MUTE BRILLIANCE M-INM-OUTPB4 6 Filter LINE IN TweeterTweeter HEADPHONE SPSP LINE OUT P70 P77 P12 P14 NJM78M15FA NJM78L05A NJM7805FA IC401,403,404 A0 14 A0 19 Voltage selector 3 PCB LAYOUT PCBJCM434-Components Main PCBMA1MCPU, DSP, Sound Source ROM Working storage RAM, Ef

11、fect RAM Reset IC, DAC, Filter, Key con-troller, Power amp, Power supply circuit Jack PCBsPS2MLINE IN/OUT jack, MIDI jacks PS3MPhone jacks PS4MPower indicator Console PCBsCN1MGate array (Button controller/LED driver), LEDs, Buttons CN2MMain Volume, Brilliance volume, LEDS, Buttons Power PCBPS11Fuse,

12、 Noise filter LIGHT MIDDLE HEAVY HARPSICHORD POWER ON OFF VOLUME BRILLIANCE CONTROL CONTROLMIDI MAX ETRANSPOSE ETUNE EMIDI EBRILLIANCE EMETRONOME VOL MELLOWBRIGHT PLAY/STOPPART TRACK LR RECORD DEMO SONG LESSON/MEMORY ROOM STAGE HALL 1 HALL2 CHORUS TREMOLO CHORUS/TREMOLOPIPE ORGANSTRINGSVIBRAHONECHOI

13、R TONE W. BASS LOWER TONE E. BASSTOUCH SELECT MALTI FUNCTION DISPLAY VALUE TEMPO/BEAT/ FIXEDPHRASE REPEATPHRASE REPEATNEXTNEXTMETRONOMEREVERB PIANO 1PIANO 2E.PIANO MIN SONGSONG AB PS11 PS2MMA1M CN1M CN2M PS3M PS4M KY3MKY2MKY1M 4 DISASSEMBLY INSTRUCTIONS 1. Disassembling top board 1-1. Remove 8 screw

14、s on the rear. 1-2. Slide the top board towards the rear. The top board will be free from catches on the case. 1-3. Lift the top board. 2. Disassembling keyboard cover 2-1. Slide the keyboard cover to open fully. 2-2. Passing the gear into the opening on each rack, lift the keyboard cover. 5 3. Disa

15、ssembling console panel Note: To avoid scratch on the side board, put paper between the console panel and the side board at both ends. 3-1. Remove three screws afixing the console panel. 3-2. Remove the screw fixing a grounding wire at the transformer. 3-3. Disconnect two connectors CF on PCB JCM434

16、-PS2M and CD on PCB JCM434-MA1M 3-4. Slide the console panel towards the front to free from catches. 3-5. Turn round the console panel. 3-6. Remove the 2 screws fixing the power switch. Insert paper here.Insert paper here. 6 5. Removal of keyboard unit 5-1. Disconnect connector CA on the PCB MA1M. 5

17、-2. Remove 24 screws that affix the keyboard unit (16 on the bottom of the case and 8 on the keyboard unit). 5-3. Lift and remove the keyboard unit. 4. Disassembling front cover 4-1. Remove 9 screws at the front edge on the bottom. 4-2. Unscrew 2 screws and remove JCM434-PS4M Front cover screws Bott

18、om Keyboard screws Keyboard screws Connector (CA) 7 6. Removal of keys 6-1. While plying the side partition plastics with tweezers, push the edge of the key toward front. 7. Disassembling keyboard PCBs 7-1. Turn round the keyboard unit to face the PCB up. 7-2. Disconnect the connector at the middle

19、of keyboard. 7-3. Remove screws on the keyboard PCBs. 8. Replacing the main PCB Note: The main PCB contains a lithium battery for memory back-up. Please remove the jumper before replacing the PCB. And make sure that the jumper is reset on new main PCB after replacing the PCB. Because no jumper is se

20、t on a spare part of the main PCB. Lithium battery Jumper 8 CIRCUIT DESCRIPTION KEYMATRIX KC0KC1KC2KC3KC4KC5KC6KC7 FI0A0 1A0 # 1B0 1C1 1C1 # 1D1 1D1 # 1E1 1 SI0A0 2A0 # 2B0 2C1 2C1 # 2D1 2D1 # 2E1 2 EI1F1 1F1 # 1G1 1G1 # 1A1 1A1 # 1B1 1C2 1 SI1F1 2F1 # 2G1 2G1 # 2A1 2A1 # 2B1 2C2 2 FI2C2 # 1D2 1D2 #

21、 1E2 1F2 1F2 # 1G2 1G2 # 1 SI2C2 # 2D2 2D2 # 2E2 2F2 2F2 # 2G2 2G2 # 2 FI3A2 1A2 # 1B2 1C3 1C3 # 1D3 1D3 # 1E3 1 SI3A2 2A2 # 2B2 2C3 2C3 # 2D3 2D3 # 2E3 2 FI4F3 1F3 # 1G3 1G3 # 1A3 1A3 # 1B3 1C4 1 SI4F3 2F3 # 2G3 2G3 # 2A3 2A3 # 2B3 2C4 2 FI5C4 # 1D4 1D4 # 1E4 1F4 1F4 # 1G4 1G4 # 1 SI5C4 # 2D4 2D4 #

22、 2E4 2F4 2F4 # 2G4 2G4 # 2 FI6A4 1A4 # 1B4 1C5 1C5 # 1D5 1D5 # 1E5 1 SI6A4 2A4 # 2B4 2C5 2C5 # 2D5 2D5 # 2E5 2 FI7F5 1F5 # 1G5 1G5 # 1A5 1A5 # 1B5 1C6 1 SI7F5 2F5 # 2G5 2G5 # 2A5 2A5 # 2B5 2C6 2 FI8C6 # 1D6 1D6 # 1E6 1F6 1F6 # 1G6 1G6 # 1 SI8C6 # 2D6 2D6 # 2E6 2F6 2F6 # 2G6 2G6 # 2 FI9A6 1A6 # 1B6 1

23、C7 1C7 # 1D7 1D7 # 1E7 1 SI9A6 2A6 # 2B6 2C7 2C7 # 2D7 2D7 # 2E7 2 FI10F7 1F7 # 1G7 1G7 # 1A7 1A7 # 1B7 1C8 1 SI10F7 2F7 # 2G7 2G7 # 2A7 2A7 # 2B7 2C8 2 LSI HG52E35P Second contactFirst contact KC SI FI 9 BUTTON MATRIX POWER SUPPLY CIRCUIT The power supply circuit generates four voltages as shown in

24、 the following table. KI0KI1KI2KI3 L18STEP BY STEPPART LPART RNEXT L19TOUCH SELECTTRACK ATRACK BPLAY/STOP L20TEMPO/BEAT/FIXEDMETRONOME L24PIANO 2E. PIANOHARPSICHORDW.BASS L25PIANO 1STRINGSCHOIRE.BASS L26VIBRAPHONEPIPEORGANCHORUS/TREMOLOREVERB L27SONG SELECTRECORD L28VALUE DOWNVALUE UPDEMO NameVoltag

25、eFor operation of VDD+5 VCPU, Reset IC, Working storage RAM, DSP, Key touch LSI, Sound source ROM, Effect RAM, Gate array AVDD+5 VDAC AVCC+15 VFilter, Mixer AVFF15 VFilter, Mixer 10 MAJOR WAVEFORMS 1 Filter output L-chCF connector pin 4 2 Filter output R-chCF connector pin 5 Tone: Piano 1 Key: A4 3

26、Key scan signal KC0CA connector pin 20 4 Key scan signal KC1CA connector pin 19 5 Key scan signal KC2CA connector pin 18 6 Button scan signal L24UPD65005GF-419 pin 53 7 Button scan signal L25UPD65005GF-419 pin 54 8 Button scan signal L26UPD65005GF-419 pin 55 CH1 .2VCH2 .2V A 1ms CH1 CH2 1 2 CH1 5VCH

27、2 5V CH3 5V A 20 s CH1 CH2 3 5 4 CH3 CH1 5VCH2 5V A 2ms CH1 CH2 6 7 CH2 5V CH38 11 PRINTED CIRCUIT BOARD JCM435-MAIN Top View Bottom View 12 TROUBLESHOOTING 1.No power Check fuse F101. Is F101 blown up? Check fuses F402, F403, and F404. Are the fuses blown up? Are the voltages 40 V AC and 8 V AC? Is

28、 it OK? Is it OK? Measure output voltages of the transformer. Replace the transformer. No No Replace F402, F403, and F404. Yes Yes No No Yes Yes Yes Replace main PCB.No Replace the power switch. Set the voltage selector at proper position. Check position of voltage selector. Check the power switch.

29、Replace F401. 13 2.No sound 3.Distorted sound Does the power indicator light up? Check the main volume. Is it OK? Does the demo tune sound? Replace keyboard PCBs. Disconnect CA and CB connectors on the main PCB. Follow No power troubleshooting. No Yes Yes Yes No No Replace main volume. Press Demo bu

30、tton. Replace the main PCB. Check the voltage selector. Is it at proper position? No Yes Replace the main PCB. Set the voltage selector at proper position. 14 4.Certain keys do not function 5.A certain key does not function Replace the main PCB. Do the keys function? Yes No Replace keyboard PCBs.End

31、 Clean the contact. Does the key function? Does the key function? Yes No No Replace the key contact rubber. Replace keyboard PCBs. End Yes Does the key function? Replace the main PCB. Yes No 15 6.A certain button does not function 7.A certain tone is strange when record/playback Replace the console

32、PCBs. Does the button function? Yes No Replace MA1M PCB.End Check the cord of pedal unit Is it disconnected? Yes No Replace the main PCB. Connect the cord 16 WIRING DIAGRAM JCM434-CN1M JCM434-CN2M JCM434-PS3M PHONE JCM435-MA1M CR-BK CR-R CN-W CN-BK RSP+ RSP RT+ RT CL-R CL-BK CM-W CM-BK LSP+ LSP LT+

33、LT JCM434-PS2M LINE INLINE OUTMIDI S4 S3 S2 C S1 O O W W BK O O W W BK DG VDD RESET P93 P94 P90 P14 P13 P12 P73 P72 P71 P70 VDDT PB7 CD-1 CD-2 CD-3 CD-4 CD-5 CD-6 CD-7 CD-8 CD-9 CD-10 CD-11 CD-12 CD-13 CD-14 CD-15 CD-1 CD-2 CD-3 CD-4 CD-5 CD-6 CD-7 CD-8 CD-9 CD-10 CD-11 CD-12 CD-13 CD-14 CD-15 LK14

34、LK13 LK12 LK11 Lg Lf Le Ld Lc Lb La JK-1 JK-2 JK-3 JK-4 JK-5 JK-6 JK-7 JK-8 JK-9 JK-10 JK-11 JK-1 JK-2 JK-3 JK-4 JK-5 JK-6 JK-7 JK-8 JK-9 JK-10 JK-11 DGT PB7 VDDT KI3 KI2 KI1 KI0 L26 L25 L24 L20 L19 JJ-1 JJ-2 JJ-3 JJ-4 JJ-5 JJ-6 JJ-7 JJ-8 JJ-9 JJ-10 JJ-11 JJ-12 JJ-1 JJ-2 JJ-3 JJ-4 JJ-5 JJ-6 JJ-7 JJ-

35、8 JJ-9 JJ-10 JJ-11 JJ-12 R-mel1 R-mel2 L-mel1 L-mel2 AG AVDD VDD DG MUTE M-IN M-OUT CC-1 CC-2 CC-3 CC-4 CC-5 CC-6 CC-7 CC-8 CC-9 CC-10 CC-11 CC-1 CC-2 CC-3 CC-4 CC-5 CC-6 CC-7 CC-8 CC-9 CC-10 CC-11 FGCC-11CC-11 CF-1 CF-2 CF-3 CF-4 CF-5 R-mel IN L-mel IN AG L-mel OUT R-mel OUT CF-1 CF-2 CF-3 CF-4 CF-

36、5 CG-1 CG-2 CG-3 CG-4 CG-5 CG-6 CG-7 CG-1 CG-2 CG-3 CG-4 CG-5 CG-6 CG-7 LVD DG AG LSP RSP R-HP L-HP POWER Lamp ROUTINLRL JCM434-PS4M CH-1 CH-2 CH-1 CH-2 LVD DG POWER TRANSFORMER W R JCM434-PS11 POWER SwitchAC PLUG BL GY PP Y BR PP Y BR JCM887T-KY1MJCM887T-KY2MJCM887T-KY3M JX-1 JX-2 JX-3 JX-4 JX-5 JX

37、-6 JX-7 JX-8 JX-9 JX-10 JX-11 JX-12 JX-13 JX-14 JX-15 JX-16 JX-16 JX-15 JX-14 JX-13 JX-12 JX-11 JX-10 JX-9 JX-8 JX-7 JX-6 JX-5 JX-4 JX-3 JX-2 JX-1 JY-1 JY-2 JY-3 JY-4 JY-5 JY-6 JY-7 JY-8 JY-9 JY-10 JY-11 JY-12 JY-13 JY-14 JY-15 JY-16 JY-16 JY-15 JY-14 JY-13 JY-12 JY-11 JY-10 JY-9 JY-8 JY-7 JY-6 JY-5

38、 JY-4 JY-3 JY-2 JY-1 KC7 KC6 KC5 KC4 KC3 KC2 KC1 KC0 SI3 FI3 SI2 FI2 SI1 FI1 SI0 FI0 KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 SI7 FI7 SI8 FI8 SI9 FI9 SI10 FI10 CA1 CA2 CA3 CA4 CA5 CA6 CA7 CA8 CA9 CA10 CA11 CA12 CA13 CA14 CA15 CA16 CA17 CA18 CA19 CA20 CA21 CA22 CA23 CA24 CA25 CA26 CA27 CA28 CA29 CA30 CA1 CA2

39、CA3 CA4 CA5 CA6 CA7 CA8 CA9 CA10 CA11 CA12 CA13 CA14 CA15 CA16 CA17 CA18 CA19 CA20 CA21 CA22 CA23 CA24 CA25 CA26 CA27 CA28 CA29 CA30 FI10 SI10 FI9 SI9 FI8 SI8 FI7 SI7 FI6 SI6 FI5 SI5 KC7 KC6 KC5 KC4 KC3 KC2 KC1 KC0 SI4 FI4 SI3 FI3 SI2 FI2 SI1 FI1 SI0 FI0 PEDAL UNIT CE1 CE2 CE3 CE4 CE1 CE2 CE3 CE4 SO

40、FT SOST DAMPER VDDT 17 33 R-4 R-3 37 R-2 38 36 35 31 32 2 34 1 3 8 9 7 6 10 9 11 8 5 4 38 R-6 R-1 R-5 13 14 15 16 17 18 19 20 21 22 23 24 27 25 26 29 30 28 12 EXPLODED VIEW CABINET 18 STAND 40 39 R-9 R-8R-7 Notes:This parts list does not include the cosmetic parts, which parts are marked with item N

41、o. 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 parts order and supply, refer to the GUIDEBOOK for Spare parts Supply, published seperately. 3.The numbers i

42、n item column correspond to the same numbers in drawing. PARTS LIST AP-40 PARTS PRICE LIST AP-40 NItemCode No.PART NAMESpecificationPrice CodeR BKBN Main PCB N11003 2486PCB ASSY/MA1MM241412*1 TK(M435)11DTA BT13815 0794BATTERY / LITHIUMCR2032/1VC111AIX D1-D42390 2555DIODE / SHOTTKYRB500V-40TE-1744ABC

43、 D52390 2555DIODE / SHOTTKYRB500V-40TE-1711ABC D62360 3057DIODE / ZENERUDZTE-173.3B11AAC IC12105 1120IC / MOSTC7S08F-TE85R11ABC IC22105 6354IC / MOSTC74HC27AF(TP1)11ACC IC32105 6353IC / MOSTC74HC11AF(TP1)11ACC IC42105 6355IC / MOSTC7S00F(TE85R)11ACC IC52114 4060ICMB3771PF-EF11AKC LSI12012 5844LSIHD6435328RF35F11BZB LSI102011 5194LSIHG52E35P11BJB NLSI21002 5582LSIMSM538002E-W1-GS-K11AVB LSI3,LSI8,LSI92012 5572LSITC55257DFL-70L(EL)33ASB LSI4,LSI52114 4221LSIUPD6376GS-E122ASB LSI62012 5707LSIMX23C2410MC-12CA5811