Casio_AP-22S_Service_Manual电路图.pdf

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1、ELECTRONIC KEYBOARD AP-22S RadioFans.CN 收音机爱 好者资料库 2 CONTENTS Safety Notice. 2 Specifications . 4 Block Diagram . 5 PCB Layout . 6 Disassembly Instructions . 7 Circuit Description . 11 Major Waveforms. 13 Printed Circuit Board . 14 Troubleshooting . 15 Wiring Diagram . 19 Exploded View . 20 Parts Li

2、st . 23 Schematic Diagrams . 25 SAFETY NOTICE CAUTION! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. RadioFans.CN 收音机爱 好者资料库 3 DENMARK: FINLAND: SWEDEN: VAROITUS Paristo voijht, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan val

3、mistajan suosittelemaan tyyppiin. Hvit kytetty paristo valmistajan ohjeiden mukaisesti. VARNING Felaktigt batteribyte kan medf fara fr explosion. Anvnd dr- fr endast samma typ eller likvrdig typ enligt apparat- tillverkarens rekommendation. Kassera frbrukade batterier enligt tillverkarens anvisning.

4、 ADVARSE! Lithiumbatteri. Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. Lever det brugte batteri tilbage tili leverandoren. RadioFans.CN 收音机爱 好者资料库 4 SPECIFICATIONS GENERAL Keyboard:88 piano keys (with touch response) Polyphony:32 notes, maxi

5、mum Tones: 10 (including two bass tones) Tuning Curves: 3 (preset for each tone) Layer: Adjustable volume Split: Split point, adjustable volume Digital Effects:Reverb (4 types), Chorus, Tremolo, Brilliance Demo Tunes: Number of Tunes: 8 Playback: Repeat (all tunes, one tune) Memory: Operations: Real

6、-time recording, playback Number of Tracks: 2 (Track A, Track B) Capacity: Approximately 5,000 notes (total of 2 tracks) Memory Backup: Built-in 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:Dampe

7、r, Soft, Sostenuto Other Functions: Metronome: Beat (6 types), Tempo (q = 30 to 300) Touch Select: 3types Transpose: 1 octave (F# to C TO F) Tuning: A4 + 440 Hz 13 Hz (adjustable) Temperament: 7 types Baroque pitch MIDI:16 multi-timbre receive Input/Output: Headphones: Standard stereo jacks 2 LINE O

8、UT (R)(L): Standard stereo jacks 2 Output impedance 22 K Output voltage: 2.0 V (RMS) MAX LINE IN (R)(L):Standard stereo jacks 2 Input impedance: 30 K Input voltage 200 mV MIDI (OUT)(IN) Speakers: 16 cm 2, 5 cm x 2 (Output: 30 W + 30 W) Power Supply:120 V (for U.S.A.), 120 V, 220 V, 230 V and 240 V (

9、for other countries) AC household current via AC power cord supplied with piano. Power Consumption:70 W (with 120 V AC), 90 W (with 220 V, 230 V and 240 AC) Dimensions: CELVIANO Only: 139 54 25 cm (5.5 2.1 1.0 inch) CELVIANO and Stand: 139 54 88 cm (5.5 2.1 3.5 inch) Weight: CELVIANO Only: approxima

10、tely 48.5 kg (106.9 lbs) CELVIANO and Stand: approximately 60.2 kg (132.7 lbs) Accessories:Stand with three pedals, score book, power cord 5 BLOCK DIAGRAM SOLM, SOLPBDK, WOK1, SORM, SORP FI0 10 SI0 10 DSP HG51B155FD RAM 256K TC55257DFL- 70L ROM 8M MX23C8000MC- 12CA73 CPU HD6435328RF35F PEDAL MIDI IN

11、OUT ROM 24M MX23C2410MC- 12CA58 RAM 256K 2 TC55257DFL- 70L 2 Keyboard Controller HG52E35P Switch & LED Controller PD65005GF-419 D/A Converter PD6376GS D/A Converter PD6376GS Filter Mixer, Mute Circuit Power Amp. STK4132MK RA0 22 RD0 15 EA0 14 ED0 15 D0 7 D0 7 L18 28 KI0 3 LA LG, LP LK8 14LEDs Button

12、s Keyboard KC0 7 Main Volume AVCC AVDD AVFF VDD +15V +5V 15V +5V Power Switch Power Transformer T101 Reset IC MB3771PF RST MUTE BRILLIANCE M-INM-OUTPB4 6 Filter LINE IN TweeterTweeter HEADPHONE SPSP LINE OUT P70 P77 P12 P14 NJM78M78M15FA NJM78L05A NJM7805FA A0 14 A0 19 Voltage selector 6 LIGHT MIDDL

13、E HEAVY HARPSICHORD LIGHT MIDDLE HEAVY HARPSICHORD POWERPOWER ONON OFFOFF VOLUME BRILLIANCE VOLUME BRILLIANCE CONTROLCONTROL CONTROLCONTROLMIDIMIDI MAXMAX E ETRANSPOSETRANSPOSE E ETUNETUNE E EMIDIMIDI E EBRILLIANCEBRILLIANCE EMETRONOME VOLEMETRONOME VOL MELLOWMELLOWBRIGHTBRIGHT PLAY/STOP PLAY/STOP P

14、ARTPART TRACK TRACK LLRR RECORD RECORD DEMODEMO SONG LESSON/MEMORY SONG LESSON/MEMORY ROOMROOM STAGESTAGE HALL 1HALL 1 HALL2HALL2 CHORUSCHORUS TREMOLOTREMOLO CHORUS/TREMOLOCHORUS/TREMOLOPIPE ORGAN PIPE ORGAN STRINGS STRINGS VIBRAHONE VIBRAHONE CHOIRCHOIR TONETONE W. BASS W. BASS LOWER TONE LOWER TON

15、E E. BASS E. BASS TOUCH SELECT TOUCH SELECT MALTI FUNCTION DISPLAYMALTI FUNCTION DISPLAY VALUE TEMPO/BEAT/ FIXED VALUE TEMPO/BEAT/ FIXEDPHRASE REPEATPHRASE REPEATNEXTNEXTMETRONOMEREVERBMETRONOMEREVERB PIANO 1PIANO 1PIANO 2PIANO 2E.PIANOE.PIANO MINMIN SONGSONG ABAB PS11 PS2MMA1M CN1M CN2M PS3M PS4M T

16、P20-KY1M TP20-KY2M PCB LAYOUT PCB Main PCB Jack PCBs Console PCBs Power PCB JCM434- MA1M PS2M PS3M PS4M CN1M CN2M PS11 Components CPU, DSP, Sound Source ROM Working storage RAM, Effect RAM Reset IC, DAC, Filter, Key con- troller, Power amp, Power supply circuit LINE IN/OUT jack, MIDI jacks Phone jac

17、ks Power indicator Gate array (Button controller/LED driver), LEDs, Buttons Main Volume, Brilliance volume, LEDS, Buttons Fuse, Noise filter 7 DISASSEMBLY INSTRUCTIONS 1. Disassembling top board 1-1. Remove 8 screws on the rear. 1-2. Slide the top board towards the rear. The top board will be free f

18、rom 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. 8 3. Disassembling console panel Note: To avoid scratch on the side board, put paper between th

19、e 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-PS2M and CD on PCB JCM434-MA1M 3-4. Slide the console panel towards the front to free

20、 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. 9 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 5. Disassembling keyboard unit 5

21、-1. Remove 12 screws fixing front end of the keyboard unit and three screws supporting rear end of the keyboard. 5-2. Remove 2 connectors CA and CB on PCB JCM434-MA1M. 5-3. Lift up the keyboard unit. 10 6. Disassembling keys 6-1. Pressing the hook with long-nose pliers, lift the key. 6-2. Using plie

22、rs, remove key spring. 7. Disassembling keyboard PCBs 7-1. Turn round the keyboard unit to face the PCB up. 7-2. Disconnect the connector at the middle 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. Pl

23、ease 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 set on a spare part of the main PCB. Lithium battery Jumper 11 CIRCUIT DESCRIPTION KEYMATRIX FI KC SI LSI HG52E35P Second contactFirst contact KC0KC1K

24、C2KC3KC4KC5KC6KC7 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 # 1E2 1F2 1F2 # 1G2 1G2 # 1 SI2C2 # 2D2 2D2 # 2E2 2F2 2F2 # 2G2 2G2 # 2 FI3A2 1A2 # 1B2 1C3 1C3 #

25、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 # 2E4 2F4 2F4 # 2G4 2G4 # 2 FI6A4 1A4 # 1B4 1C5 1C5 # 1D5 1D5 # 1E5 1 SI6A4 2A4 # 2B4 2C5 2C5 # 2D

26、5 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 1C7 1C7 # 1D7 1D7 # 1E7 1 SI9A6 2A6 # 2B6 2C7 2C7 # 2D7 2D7 # 2E7 2 FI10F7 1F7 # 1G7 1G7 # 1A7 1A7

27、 # 1B7 1C8 1 SI10F7 2F7 # 2G7 2G7 # 2A7 2A7 # 2B7 2C8 2 12 KI0KI1KI2KI3 L18STEP BY STEPPART LPART RNEXT L19TOUCH SELECTTRACK ATRACK BPLAY/STOP L20METRONOME L24PIANO 2E. PIANOHARPSICHORDW.BASS L25PIANO 1STRINGSCHOIRE.BASS L26VIBRAPHONEPIPEORGANREVERB L27SONG SELECTRECORD L28VALUE DOWNVALUE UPDEMO TEM

28、PO/ BEAT/FIXED CHORUS/ TREMOLO BUTTON MATRIX POWER SUPPLY CIRCUIT The power supply circuit generates four voltages as shown in the following table. NameVoltageFor 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

29、VFilter, Mixer AVFF15 VFilter, Mixer 13 MAJOR WAVEFORMS CH1 .2VCH2 .2V A 1ms CH1 CH2 1 2 1 Filter output L-chCF connector pin 4 2 Filter output R-chCF connector pin 5 6 Button scan signal L24UPD65005GF-419 pin 53 7 Button scan signal L25UPD65005GF-419 pin 54 8 Button scan signal L26UPD65005GF-419 pi

30、n 55 CH1 5VCH2 5V A 2ms CH1 CH2 6 7 CH2 5V CH38 Tone : Piano 1 Key: A4 3 Key scan signal KC0CB connector pin 2 4 Key scan signal KC1CB connector pin 4 5 Key scan signal KC2CB connector pin 6 CH1 5VCH2 5V CH3 5V A 20 s CH1 CH2 3 5 4 CH3 14 PRINTED CIRCUIT BOARD Top View Bottom View C93 C95 C94 C96 C9

31、7 C98 C85 C86 C87 C88 C89 C83 C90 15 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 it OK? Is it OK? Measure output voltages of the transformer. Replace the transformer. No No Replace F40

32、1. 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. 16 2.No sound 3.Distorted sound Does the power indicator light up? Check the main volume.

33、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 button. Replace the main PCB. Check the voltage selector. Is it at proper position? No Yes Replace the mai

34、n PCB. Set the voltage selector at proper position. 17 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 Clean the contact. Does the key function? Does the key function? Yes No No Replace the key contact rubb

35、er. Replace keyboard PCBs. End Yes Does the key function? Replace the main PCB. Yes No 18 6.A certain button does not function Replace the console PCBs. Does the button function? Yes No Replace MA1M PCB.End 7.A certain tone is strange when record/playback Check the cord of pedal unit Is it disconnec

36、ted? Yes No Replace the main PCB. Connect the cord 19 SI0 KC0 FI0 KC1 SI1 KC2 FI1 KC3 SI2 KC4 FI2 KC5 SI3 KC6 FI3 KC7 SI4 NC FI4 NC CA-1 CA-2 CA-3 CA-4 CA-5 CA-6 CA-7 CA-8 CA-9 CA-10 CA-11 CA-12 CA-13 CA-14 CA-15 CA-16 CA-17 CA-18 CA-19 CA-20 CA-1 CA-2 CA-3 CA-4 CA-5 CA-6 CA-7 CA-8 CA-9 CA-10 CA-11

37、CA-12 CA-13 CA-14 CA-15 CA-16 CA-17 CA-18 CA-19 CA-20 SI5 KC0 FI5 KC1 SI6 KC2 FI6 KC3 SI7 KC4 FI7 KC5 SI8 KC6 FI8 KC7 SI9 FI10 FI9 SI10 CB-1 CB-2 CB-3 CB-4 CB-5 CB-6 CB-7 CB-8 CB-9 CB-10 CB-11 CB-12 CB-13 CB-14 CB-15 CB-16 CB-17 CB-18 CB-19 CB-20 CB-1 CB-2 CB-3 CB-4 CB-5 CB-6 CB-7 CB-8 CB-9 CB-10 CB

38、-11 CB-12 CB-13 CB-14 CB-15 CB-16 CB-17 CB-18 CB-19 CB-20 TP-20 KY1 TP-20 KY2 JCM434-CN1M JCM434-CN2M KC7 NC FI4 SI4 1 2 3 4 1 2 3 4 JCM434-PS3M PHONE JCM434-MA1M CR-BK CR-R CN-W CN-BK RSP+ RSP RT+ RT CL-R CL-BK CM-W CM-BK LSP+ LSP LT+ LT JCM434-PS2M RLRLINOUT LINE INLINE OUTMIDI S4 S3 S2 C S1 O O W

39、 W BK O O W W BK W R 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 LK13 LK12 LK11 Lg Lf Le Ld Lc Lb La JK-1 JK-2 JK-3

40、 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-8 JJ-9 JJ-10 JJ-11 JJ-12 R-mel1 R-mel2 L-mel1 L-me

41、l2 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 CF-1 CF-2 CF-3 CF-4 CF-5 R-mel IN L-mel IN AG L-mel OUT R-mel OUT R-mel IN L-mel IN AG L-mel OUT R-mel OUT CF-R BR E O Y CG-1 CG-2 CG-3 CG-4 CG-5 CG-6 C

42、G-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 JCM434 -PS4M CH-1 CH-2 CH-1 CH-2 LVD DG POWER TRANSFORMER JCM434 -PS11 POWER Switch AC PLUG BL GY PP Y BR PP Y BR WIRING DIAGRAM 20 28 R-4 R-3 32 R-2 33 31 30 26 27 2 29 1 3 8 9 19 24 23 2112 18 2022 14 18 17 1619 13 1515

43、7 6 10 9 11 8 5 4 33 R-6 R-1 R-5 EXPLODED VIEW CABINET 21 35 34 R-9 R-8R-7 STAND 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 specificat

44、ions 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 in item column correspond to the same numbers in drawing. PARTS LIST AP-22S ItemCode No.Parts NameSpecificationQR Main PCB BT13

45、815 0794BATTERY/LITHIUMCR2032/1VC11B D1 - D52390 2555DIODE/SHOTTKYRB500V-40TE-175B D62360 3057DIODE/ZENERUDZTE-173.3B1A IC12105 1120IC/MOSTC7S08F-TE85R1B IC22105 6354IC/MOSTC74HC27AF(TP1)1B IC32105 6353IC/MOSTC74HC11AF(TP1)1B IC42105 6355IC/MOSTC7S00F(TE85R)1B IC52114 4060ICMB3771PF-EF1B LSI12012 58

46、44LSIHD6435328RF35F1A LSI102011 5194LSI/KEY CONTROLLERHG52E35P1A LSI22012 5843LSIMX23C8000MC-12CA731A LSI3/8/92012 5572LSI/RAMTC55257DFL-70L(EL)3A LSI4/52114 4221LSI/DACUPD6376GS-E12A LSI62012 5707LSIMX23C2410MC-12CA581A LSI72012 1316LSI/DSPHG51B155FD-11A Q1 - Q32250 1162TRANSISTOR2SA1576AT106R3A Q42252 0637TRANSISTOR2SC4081T106R1A SNF13025 1505CHIP EMI FILTERNFM