CASIO CT-888C电子琴维修手册(中文版)
CT -888C
2002 7
CT-888C
1 3 4 12 13 14 15 20 21
MIDI:
73 6
200 128 MIDI 20 12 8 32 61
24 12 3 100
216 40 255 3 0 127 128
2
6 2 6
4,900 2 2
PCM
32 8
1 4 1 10
16
16 MIDI 1 12
25 –12 +12 A4 440Hz ± 50
MIDI
IN OUT
200 Ω
4.9 V (RMS)12 V 6 D
2 (UM-1/R20) 8 (AM-1/LR20)AD-12
5.0 W + 5.0 W116.2 × 42.1 × 14.7 cm 9.1 kg
12 V
C1 B2 24
32 Ω Vrms
A5
8 Ω Vrms
A5
47 KΩ Vrms
A5
460 mA ± 20 %1960 mA ± 20 %
550 mV ± 20 %510 mV ± 20 %6800 mV ± 20 %6000 mV ± 20 %4000 mV ± 20%3600 mV ± 20%
6.3 V
KC0
FI0SI0FI1SI1FI2SI2FI3SI3FI4SI4FI5SI5FI6SI6FI7SI7FI8SI8FI9SI9
C1 (1)C1 (2)G#1 (1)G#1 (2)E2 (1)E2 (2)C3 (1)C3 (2)G#3 (1)G#3 (2)E4 (1)E4 (2)C5 (1)C5 (2)G#5 (1)G#5 (2)E6 (1)E6 (2)C7 (1)C7 (2)
KC1C#1 (1)C#1 (2)A1 (1)A1 (2)F2 (1)F2 (2)C#3 (1)C#3 (2)A3 (1)A3 (2)F4 (1)F4 (2)C#5 (1)C#5 (2)A5 (1)A5 (2)F6 (1)F6 (2)
KC2D1 (1)D1 (2)A#1 (1)A#1 (2)F#2 (1)F#2 (2)D3 (1)D3 (2)A#3 (1)A#3 (2)F#4 (1)F#4 (2)D5 (1)D5 (2)A#5 (1)A#5 (2)F#6 (1)F#6 (2)
KC3D#1 (1)D#1 (2)B1 (1)B1 (2)G2 (1)G2 (2)D#3 (1)D#3 (2)B3 (1)B3 (2)G4 (1)G4 (2)D#5 (1)D#5 (2)B5 (1)B5 (2)G6 (1)G6 (2)
KC4E1 (1)E1 (2)C2 (1)C2 (2)G#2 (1)G#2 (2)E3 (1)E3 (2)C4 (1)C4 (2)G#4 (1)G#4 (2)E5 (1)E5 (2)C6 (1)C6 (2)G#6 (1)G#6 (2)
KC5F1 (1)F1 (2)C#2 (1)C#2 (2)A2 (1)A2 (2)F3 (1)F3 (2)C#4 (1)C#4 (2)A4 (1)A4 (2)F5 (1)F5 (2)C#6 (1)C#6 (2)A6 (1)A6 (2)
KC6F#1 (1)F#1 (2)D2 (1)D2 (2)A#2 (1)A#2 (2)F#3 (1)F#3 (2)D4 (1)D4 (2)A#4 (1)A#4 (2)F#5 (1)F#5 (2)D6 (1)D6 (2)A#6 (1)A#6 (2)
KC7G1 (1)G1 (2)D#2 (1)D#2 (2)B2 (1)B2 (2)G3 (1)G3 (2)D#4 (1)D#4 (2)B4 (1)B4 (2)G5 (1)G5 (2)D#6 (1)D#6 (2)B6 (1)B6 (2)
(1) (2)
KC0
FI10
3 3 4 4 5 5 6 6PA0
KC1 1 1 2 2
KC2 G ̄ G ̆
PA2
KC3̄ ̈̇
KC49
KC56
KC6+
KC7
KI0874
325
—01
KI1
KI2
PA1
PA3
PB0PB1PB2PB3
6 VDD VC APO VDD AVDD LVDD VCC,VC CVDD VDZ
+5 V+5 V+5.6 V+9 V+5 V+3.3 V
MIDI
DSP
CVDD Q501 Q502 T501 600V
AC
POWER
(LSI1:UPD915GF-3BA)
16 1 3 8 I/O 1 FI SI 16 MIDI
LSI1 1234, [**************]15, 161718, 1920212223~3031~839~4647~50515253~555657~76777879
TXD0RXD0SCK0TXD1, RXD2
SCK1AVCC ANO AN1AGND BCK SO LRCK GND XLT0, XLT1
VCC MD0, MD1RSTB NMI VDD FI0~FI3SI0~SI3KC0~KC7FI4~FI7SI4~SI7FI8, FI9SI8, SI9FI10SI10/P23KI0~KI2MWNB MA0~MA17MCSB01MCSB0P10
MIDI MIDI
APO 36.058KHz DVDD3 (+3V) AC
+5V AC 0V (0V) (0V) +3V +5V
30MHz
80818283~9899100
VCC GND MRDB MD0~MD15
PLE P17
+3V (0V)
(LSI2:HG73C103BFB)
LSI2
1, 2, 8034~[***********]~[1**********]5~4647, 4849, 505152~[1**********]2~66
I03~I05VCC TEST GND AD1DEB ADO WEB CE2CE1B VCC GND XIN XOUT T, WGND VDD PA0~PA5VCC GND PA6PA7PB0~PB4
+3V
(0V) +3V (0V) 30MHz
+3V (0V) +5V
+3V (0V)
I00~I02, I06, I07
67, [***********]777879
RMD0, RMD1
VDD GND VCC SO WCKO RCEB WCKI SI BCKI SINC RESB
+5V (0V) +3V
36.058KHz
(LSI501:ML9040-B02GA)
40 16 LSI ROM 240 RAM 80 CPU LSI 16 LSI501
1~22,63~802324, 2526~3031, 323334, 3536373839~4243~4647~62
SEG1~SEG40
VSS OSC1, OSC2V1~V5LP, XCSLVDD FR, DORS R/WE DB0~DB3DB4~DB7COM1~COM16
(0V)
LVDD (+5V)
(0V)
(IC1:UPD6379GR)
16
DAC
(IC301: LA4620)
IN11+IN11–
IN12–
PriGND
IN21+IN21–
IN22–
PCB
1)
Vop
2)
3)
3
1
4
2
Power ON
1 SINK
T5
2APO
JH 4
Power OFF
3 KC0
JC 14 KC1
JC 4
5
7
6
8
5 (LMEL)
T2
6 (RMEL)
T1
A4
7 (LIN)
JK 18 (RIN)
JK 2
PCB JCM731-MA1M B
PCB JCM730-MA2M
JCM731-MA1M
JCM730-MA2M
JCM730-CN1M/CN2M/CN3M/CN4M
JCM731-KY1M/-KY2M/-KY3M
— 20 —
CT-888C
R-X
1.
2. 3.
— 21 —
N N N N
Item 1LSI1LSI2LSI3IC1IC2IC10IC11IC12IC13Q1Q2D1X22IC301IC302Q301, Q306Q302/304Q307-Q312Q303D301/302D303 - D306D308, D311D307D310J301J302J303J3043456LSI501Q501/502Q503Q504D501D502C501L501T501VR5017D601D602 - D644LED601VR601
Code No.MA1M PCB[***********][***********][***********][***********][***********][***********]2742MA2M PCB[***********][***********][***********]6323901344
Part Name
PCB/ASSY (MA1M)LSI LSI LSI LSI
IC/MOSIC
IC/MOSIC/MOSIC/MOS
TRANSISTOR TRANSISTOR DIODE/CHIP
OSCILLATOR/CRYSTALPCB/ASSY (MA2M)IC/LINEAR
IC/PHOTO COUPLERTRANSISTOR TRANSISTOR TRANSISTOR DIODE/SHOTTKYDIODE
Specification
TK-M240966*002UPD915GF-3BA(T)HG73C103BFB
MR27V3202F-5LMA-N UPD6379GR-E1RN5VD40AA-TR XC62FP3302PR TC7SH08FU-TE85L TC7SET08FU(TE85L)TC7SH04FU-TE85L 2SA1576AT106R 2SC4081T106R 1SS355TE-17AT-49-30M TK-M140624*003LA4620PC900V
2SB1548-P.CS 2SC1740STPR 2SB1237TV2R SB20-03B 1SS133T-77-T HZS6B1LTD-T RD5.1JSB1-T1-T HEC2305-01-920YKB21-5006YKB21-5010YKF51-5051
M240950*1M240967*1
HMBV4BG2W147NLU AZGM440758-1
ML9040-B02GA 2SD965-R(TA)2SA933ASTPR 2SC1740STPR HZS6A2LTD-T 1SS133T-77-T ECQV1H124JL3LHL08TB101K TE-CFL5-1M1EVN-D8AA03B53M140606*1
MTZJ5.1AT-77-T 1SS133T-77-T LN28RPX-(TT)EWASC2C95B23
Q [***********][***********][1**********]1
Price Code
DW BW BV BH AO AD AE AB AC AB AA AA AA AG CX AV AK AD AA AB AD AA AA AA AC AG AC AH CG BW AX AA AU AB AA AA AA AA AA AC AL AA BH AB AA AA AF
R A B B B B C C C C C C C C C B C C B B B B B B B B C C C B B B X B B B B B C C C C C B B C C C
N
23601085DIODE/ZENER23602233DIODE/ZENER35015012JACK/POWER36120665JACK 36120789JACK 35014816JACK/DINBL ass'y
69273100BL/ASSY
69273180PCB/ASSY (LCD1M)31223701LAMP/FLORESCENT69273420CUSHION/LAMP10006502LSI/LCD DRIVER22530710TRANSISTOR 22501577TRANSISTOR 22501592TRANSISTOR 23603056DIODE/ZENER23901344DIODE
28250469CAPACITOR/MYLAR38411197COIL
30121606TRANS/INVERTER27750994POTENTIOMETER CN1 ~ CN4 PCBs
69258970PCB/ASSY (CN1,2,3,4)23601729DIODE/ZENER23901344DIODE 23700343LED
27652178POTENTIOMETER
N Item 8
D809 - D946
9
D801 - D808
[***********][***********][1**********]435
Code No.KYPCBs [***********][1**********]344Keyboard [***********][***********]2510Bender
[***********]115261Panel
[***********][***********][***********][***********][***********][***********][***********][***********]Accessory [**************]5Refurbish 6906 [**************]5 93606925 93206925 93306917 9300
Part Name
PCB/ASSY (KY1,2)DIODE
PCB/ASSY (KY3)DIODE
KEYSET/LT WHITEKEYSET/LT WHITEKEYSET/BLACK 10PRUBBER/CONTACTRUBBER/CONTACTPOTENTIOMETER KNOB/BEND
SPRING/BENDERSPEAKER SPEAKER LCD
SWITCH/SLIDE KNOBKNOB
RUBBER/BUTTONRUBBER/BUTTONRUBBER/BUTTONRUBBER/BUTTONRUBBER/BUTTONRUBBER/BUTTONRUBBER/BUTTONRUBBER/BUTTONRUBBER/BUTTONINTERCONNECTOR PANEL/DISPLAYPC-FILM-731
COVER/BATTERYSTAND/NOTEADAPTOR/ACU-CASE-SUB ASS'YL-CASE-SUB ASS'YCASE ASSY/FRONTL-PLATE-730A L-PLATE-730C FOOT/RUBBER
Specification
M140614*11SS133T-77-T M340666*11SS133T-77-T M312118*1M312118*2M140369A-3M240699-2M240700-2RK1631110-50KB M31488-2M41949A-1S12J90A S05JH46A LD-B10060E CSB-12D M311859-3M240641-2M240636-3M240638-2M240640-3M240635-2M240639-2M240634-4M240632-4M240633-3M440459-4M340642-4M440764-1
M341235*3(M476)M140586-1
AD-12CL-SC1(D)M240681*6M140625*3M340668*1M240642-1M340640-1M41109-3
Q [***********][***********]1215
Price Code
BL AA AE AA AP AR AS AL AL AN AE AA BM AT BQ AC AG AC AM AC AC AH AG AO AS AL AO AM AE CF AY CZ CP CN BE AJ AJ AB
R B C B C B B B B B C C X C C C C C C C C C C C C C C C X C C X C X X X X X X
N N N N N N N N N N N
R-1R-2R-3R-4R-5R-6
Notes: Q - Quantity per unit R - Rank
Ver. 1 : Correction of page 14.
CASIO TECHNO CO.,LTD.
Overseas Service Division
Nishi-Shinjuku Kimuraya Bldg. 1F5-25, Nishi-Shinjuku 7-Chome
Shinjuku-ku, Tokyo 160-0023, Japan