Casio_CTK-100_Service_Manual电路图.pdf

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1、(without price) CTK-100 ELECTRONIC KEYBOARD R CTK-100 RadioFans.CN 收音机爱 好者资料库 INDEX CONTENTS SPECIFICATIONS. 1 BLOCK DIAGRAM . 2 CIRCUIT DESCRIPTION . 3 TROUBLESHOOTING. 5 IC AND TRANSISTOR LEAD IDENTIFICATIONS . 6 SCHEMATIC DIAGRAMS . 7 PCB VIEW Maximum Output Level (Vrms with 8 load each channel):

2、 76 mV 20% with key G2 pressed in Street Organ tone Speaker Input Level:935 mV 20% with key G2 pressed in Street Organ tone Minimum Operating Voltage:6.0 V General Number of Keys:49 Polyphonic:8-note Preset Tones:100 Auto-Rhythms:100 Auto-Accompaniment:CASIO Chord/Fingered Demonstration Tune:Classic

3、al Medley Built-In Speakers:10 cm dia. 1.0W Input Rating: 2 pcs. Terminals:Output Jack Output Impedance: 120 , Output Voltage: 3 V (rms)MAX, AC Adapter Jack (DC 9 V) Power Source:3-way AC or DC source AC: AC adapter AD-5 DC: 6 AA size dry batteries Battery life: Approx. 3 hours (SUM-3/R6P) Approx. 6

4、 hours (AM-3/LR6) Power Consumption:5.0 W Dimentions:86 x 857 x 285 mm (HWD) (3-3/8 x 33-3/4 x 11-1/4 inches) (HWD) Weight:3.2 kg (7.0 lbs) excluding batteries Standard Accessory:Music stand RadioFans.CN 收音机爱 好者资料库 2 BLOCK DIAGRAM KO0KO9 KI0KI7 Keyboard Switches Oscillator VDD +5V Power supply circu

5、it VC +9V Amplifier Speakers Output Jack LA4598 Filter T3/T4 CPU MSM6387-13 Main Volume T2 3 0IK1IK2IK3IK4IK5IK6IK7IK 0OK )1CK( 012C2#C2D2#D2E2F 1OK )2CK( 232#F2G2#G2A2#A2B 2OK )3CK( 453C3#C3D3#D3E3F 3OK )4CK( 673#F3G3#G3A3#A3B 4OK )5CK( 894C4#C4D4#D4E4F 5OK )6CK( enoTmh t y hR4#F4G4#G4A4#A4B 6OK )7

6、CK( opmeT pU opmeT nwoD 5C5#C5D5#D5E5F 7OK )8CK( / t ratS potS nI - l l iF5#F5G5#G5A5#A5B 8OK )9CK( omeD6C .pmoccA 1emu l oV ) n i M( .pmoccA 2emu l oV .pmoccA 3emu l oV .pmoccA 4emu l oV )xaM( 9OK rewoP FFO l a mroNdereg n i F OISAC drohC CIRCUIT DESCRIPTION Key and Switch Matrix Nomenclature of Ke

7、ys F#3 G#3 A#3C#4 D#4F#4 G#4 A#4C#5 D#5F#5 G#5 A#5 F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6 D#3C#3A#2G#2F#2D#2C#2 C2D2E2F2G2A2B2C3D3E3 4 CPU (MSM6387-13) The CPU contains a sound data ROM and a DAC (Digital to Analog Convertor), and it provides a sound waveform in accordance with the pressed key and t

8、he selected tone. The following table shows the pin functions of the CPU. Filter Block Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform. From CPU To main volume Pin No.TerminalIn/ OutFunction 1, 2TEST1, TEST2 Not used. Connected to ground. 3

9、RESETIn Power ON reset terminal. When the power switch is turned on, the terminal receives a low level signal and the internal circuits of the LSI are initialized. 4AVDDIn +5 V sorce for the built-in DAC 5OUTOut Sound waveform output 6AGNDIn Ground (0 V) source for the built-in DAC 7GNDIn Ground (0

10、V) source 8, 9COSI, COSOIn/Out 21.725 MHz clock pulse input/output 10VDDIn +5 V source 11 18KI0 KI7In Input terminal from keys and switches 19, 20KO11, KO10 Not used. 21 30KO9 KO0Out Key and switch scan signal output VDD C273(H) C473(H) 3.3K 1K2.2K C333(H) T4 T3 2SC1740SQ1K 150K 1.5K 120K 1K C822(H)

11、 C823(H) AGAGAG AGAG 2SC1740SQ 5 Power Amplifier (LA4598) The power amplifier is a 2-channel power amplifier with a standby switch. The following table shows the pin functions of the power amplifier. TROUBLESHOOTING Nature of TroubleFaulty BlockCheckpoint No powerPower Supply CircuitEmitter of T2 sh

12、ould provide +5.5 V. Base of T2 should receive +6 V. Power Jack Jack contact. No sound at allPower Amp. (LA4598)Pin 9 should receive +9 V when the power switch is turned on. Check output signals of pins 3 and 12. CPU (MSM6387-13)Pins 21 30 should provide pulses. Pin 5 should have a sound signal when

13、 keys are pressed. Oscillator Pins 8 and 9 of the CPU should receive an ocsillation signal. A certain key or switch does not function Key and Switch MatrixDust on the contact. Certain keys or switches do not function Key and Switch MatrixOpen circuit on KC or KI line. Pin No.TerminalIn/OutFunctiion

14、1Power GND Ground (0 V) source 2Ch1 B.S.Out Terminal for a bootstrap capacitor 3Ch1 OUTIn Channel1 output 4VCCIn +9 V source. Connected to the power source directly. 5Ch1 N.F.In Negative feedback input 6Ch1 INIn Channel1 input 7D.C. Terminal for a decoupling capacitor 8Pre GNDIn Ground (0 V) source

15、9StandbyIn Power control signal input. 0 V: OFF, +9 V: ON 10Ch2 INIn Channel2 input 11Ch2 N.F.In Negative feedback input 12Ch2 OUTOut Channel2 output 13Ch2 B.S. Terminal for a bootstrap capacitor 14NC Not used. 6 IC AND TRANSISTOR LEAD IDENTIFICATION T3, T4: 2SC1740SQT2: 2SD2008Q,R LA4598 30 29 28 2

16、4 27 26 25 23 22 21 20 19 18 17 16 TEST2 TEST1 RESET GND AVDD OUT AGND COSI COSO VDD KI0 KI1 KI2 KI3 KI4 1 2 3 7 4 5 6 8 9 10 11 12 13 14 15 KO0 KO1 KO2 KO6 KO3 KO4 KO5 KO7 KO8 KO9 KO10 KO11 KI7 KI6 KI5 BCE BCE Power GND Ch1 B.S. Ch1 OUT VCC Ch1 N.F. Ch1 IN D.C. Pre GND Standby Ch2 IN Ch2 N.F. Ch2 O

17、UT Ch2 B.S. 1 2 3 4 5 6 7 8 9 10 11 12 13 MSM6387-13 7 SCHEMATIC DIAGRAMS Keyboard PCBs M496K-KY1M, KY2M 8 PCB VIEW and MAJOR WAVEFORMS 5671432 9 Main PCB M4502-MA1M 1 4 0.0 0.3 0.0 0.0 0.0 5.1 4.2 2.3 0.0 0.0 2.4 4.6 5.0 0.0 0.0 0.3 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 3 4.6 2.4 1.7 1 1.4

18、4.6 2.0 1.2 4.3 7.5 0.0 8.4 0.0 8.4 0.0 1.2 8.7 4.3 7.5 0.0 7 6 5 5.5 6.18.7 10 EXPLODED VIEW PARTS LIST CTK-100 Notes: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 separately.

19、 3.The numbers in item column correspond to the same numbers in drawing. NItemCode No.Parts NameSpecificationQR* PCB Assy M5505-MA1M 2011 2961 LSI MSM6387-13 1AF 2114 2891 ICLA4598 1AB 2220 1387 Transistor2SC1740SQ-TP-T 2AA 2253 0357 Transistor2SD2008Q,R-T105-T 1AA 2310 7848 Zener diodeRD4.3ESB2-T1-

20、T 1AA 2360 0035 Zener diodeRD6.2ESB2-T1-T 1BA 2370 0343 LED LN28RPX-(TT) 1 CA 2390 1323 DiodeRB100A-T32-T 1BA 2390 1344 Diode1SS133T-77-T 15 CA 2590 0742 Ceramic oscillatorEFO-GC2175C3 1BB 2606 1141 Carbon film resistorR-20-1K-J-T23-T 25 CA 2606 1155 Carbon film resistorR-20-330-J-T23-T 2 CA 2606 11

21、69 Carbon film resistorR-20-100-J-T23-T 3 CA 2606 1183 Carbon film resistorR-20-10K-J-T23-T 1 CA 2606 1204 Carbon film resistorR-20-3.3-J-T23-T 2 CA 2606 1274 Carbon film resistorR-20-1.5K-J-T23-T 2 CA 2606 1288 Carbon film resistorR-20-2.2K-J-T23-T 1 CA 2606 1295 Carbon film resistorR-20-2.7K-J-T23

22、-T 1 CA 2606 1309 Carbon film resistorR-20-470-J-T23-T 1 CA 2606 1358 Carbon film resistorR-20-3.3K-J-T23-T 1 CA 2606 1449 Carbon film resistorR-20-150K-J-T23-T 1 CA 2606 1484 Carbon film resistorR-20-820-J-T23-T 1 CA 2606 1498 Carbon film resistorR-20-1.8K-J-T23-T 1 CA 2606 1554 Carbon film resisto

23、rR-20-120K-J-T23-T 1 CA 2606 1617 Carbon film resistorR-20-120-J-T23-T 2 CA N2606 1708 Carbon film resistorR-20-47-J-T23-T 1 CA 2801 7910 Electrolytic capacitor16RE3-470-T2-T 2 CA 2805 3061 Electrolytic capacitor6.3RE2-220-T2-T 1 CA 2805 3142 Electrolytic capacitor16RE2-10-T2-T 1 CA 2807 0926 Electr

24、olytic capacitor10RE2-470-T2-T 3 CA 2807 1023 Electrolytic capacitor50RE2-1-T2-T 1 CA 2807 1091 Electrolytic capacitor6.3RE2-100-T2-T 3 CA 2807 1112 Electrolytic capacitor10RE2-100-T2-T 3 CA 2807 1139 Electrolytic capacitor50RE2-R47-T2-T 1 CA 2813 0658 Semiconductive capacitorRT-C50TKYR822K-T 1 CA 2

25、813 1925 Semiconductive capacitorRT-B70TKYR333K-T 1 CA 2813 1939 Semiconductive capacitorRT-B70TKYR473K-T 1 CA 2813 1953 Semiconductive capacitorRT-B90TKYR823K-T 2 CA 2813 3101 Semiconductive capacitorRT-B70TKYR273K-T 1 CA 2813 3283 Ceramic capacitorUP050F104Z-A-B 2 CA 2819 5443 Module capacitorCNB8

26、X471M 1 CB 2830 6229 Mylar capacitorAMZV-104K50-T 2 CA 2845 3220 Ferrite beadsEXC-ELDR35V-T 5 CA 3501 7049 DC jackHEC2305-01-330 1AA 3612 0711 Miniature jackYKB21-5101 1BB 3665 0217 Terminal BCT-00160D 1 CA 3841 0539 InductorELE-V100KR-T 4 CA 3841 0910 CoilFL5R1R0PNA 2 CA N3841 0959 InductorELE-R100

27、KR-T 4 CA N4317 4271 Blank PCB M4502-MA1M M111795A-1 1 CC 6921 6200 Battery spring 700 (+) M412124-1 1BA 6921 6211 Battery spring 700B (-) M412171A-1 1BA 6921 8570 Felt 280X18 M412199-1 1 CA N6922 4700 PCB assy M4502-MA1MM111796*1 1BP Notes: N New parts M Minimum order/supply quantity R Rank 11 NIte

28、mCode No.Parts NameSpecificationQR* PCB Assy Keyboard 2301 0101 Diode1S2473-T-77-T 49 CA JX3725 2030 PC joiner MASKX JSF50-9-140 1 CA JA3725 2401 PC joiner M283A JSF50-15-240M 1 CB 4317 1610 Blank PCB M496K-KY1M M110799-1 1 CB 4317 1621 Blank PCB M496K-KY2M M210939A-1 1 CB N6918 5500 Keyboard PCB as

29、sy M110798*2 1 CJ Mechanical Parts 16920 5572 SL knob 238 M311360B-1 3BA N26922 4780 Panel 502 M111763-1 1 CI 36909 5890 SL contact 12D CSB-12D 3BA N46922 3980 Rubber button 700 M211536-2 1BB N56922 5750 Felt 502AM412333-11 CA N6908 6160 Felt 156G M43073-1 1 CA N63831 0665 Speaker 10G42AFA 2BC 76917

30、 4474 White key set CEGB M110589D-1 4AB 86917 4484 White key set DFAS M110590D-1 1AB 96917 4494 White key set DFA M110591D-1 3AB 106917 4506 Black key set 10P M110594F-1 2AB N116922 4790 Case sub assy M211760*1 1 CO 11-16917 8462 Key damper 49 M411202B-1 1 CA 11-26918 2020 key stopper 4500 M411303-1

31、 1 CB N11-36921 9990 Key stopper M700 M412235-1 1 CB N6921 9470 Felt 10X225 M411280-2 3 CA 126917 4453 TAC31 M110603C-1 1BC 136917 4463 TAC18 M110605C-1 1BB 146910 1130 Sponge AM4630-1 1 CA N156921 6231 Joiner coverM412126A-1 1 CA 166921 6220 Bottom plateM311898-1 1 CC N176906 7092 Battery cover sub

32、 assyM311200B*12 1BA Screws 180009 2682 Screw2.6 x 810 CA 190009 4589 Screw2.6 x 88 CA 200009 4588 Screw2.6 x 1814 CA 210008 6417 Screw4 x 1014 CA 226918 1992 ScrewM411279B-1 18 CA 230009 2680 Screw4 x 812 CA Accessory 6916 7880 Music standM310827-1 1 CB Notes: N New parts M Minimum order/supply quantity R Rank 12 MA0300941A