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Casio CTK-485, Руководство по обслуживанию

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Casio CTK-485 Скачать руководство пользователя страница 4

— 3 —

BLOCK DIAGRAM

CPU

MSM 6755B-17

LSI1

Keyboard

Buttons

LCD

LCD Driver

KS0066U-10B

LSI3

Reset IC

IC1

Power

Switch

Oscillator

X1, Q1

Power Supply Circuit

Q101 ~ Q104, D205

Power Amp.

LA4598

IC101

Filter (L)

Q106

Filter (R)

Q107

Phones/Output

Speaker (L)

Speaker (R)

VC

VCC

DVDD

AVDD

APO

MD0 ~ MD7

MA0 ~ MA18

DC + 9 V IN

DB4 ~ DB7

COM1 ~ COM14

SEG1 ~ SEG40

RS

R/W

E

KO8 ~

KO12

KI0 ~ KI6

KI0 ~ KI7

KO0 ~ KO7

ROM(2M-bit)

LC372100PM-

H78

LSI2

Содержание CTK-485

Страница 1: ...ARNAVAL DES ANIMAUX 71 SWAN LAKE 72 MARCH THE NUTCRACKER 73 BRINDISI LA TRAVIATA 74 TRIUMPHAL MARCH AIDA 75 LA DONNA MOBILE 76 TOY SYMPHONY 69 AIR SUITE no 3 77 SERENADE EINE KLEINE NACHTMUSIK 78 CHAN...

Страница 2: ...ely 440 Hz 50 cents Volume 0 to 9 10 steps Terminals Phones output terminal Stereo standard jack Output Impedance 70 Output Voltage 2 4 V RMS MAX Power supply terminal 9 V DC Power supply Dual power s...

Страница 3: ...o G2 pressed in Synth Lead 1 Volume maximum Speaker output level Vrms with 40 load each channel with key A1 pressed in Synth Lead 1 L ch 1 260 mV 20 R ch 1 200 mV 20 Phone output level Vrms with 8 loa...

Страница 4: ...Power Switch Oscillator X1 Q1 Power Supply Circuit Q101 Q104 D205 Power Amp LA4598 IC101 Filter L Q106 Filter R Q107 Phones Output Speaker L Speaker R VC VCC DVDD AVDD APO MD0 MD7 MA0 MA18 DC 9 V IN D...

Страница 5: ...KI1 KI2 KI3 KI4 KI5 KI6 KI7 KO0 C1 G 1 E2 C3 G 3 E4 C5 G 5 KO1 C 1 A1 F2 C 3 A3 F4 C 5 A5 KO2 D1 A 1 F 2 D3 A 3 F 4 D5 A 5 KO3 D 1 B1 G2 D 3 B3 G4 D 5 B5 KO4 E1 C2 G 2 E3 C4 G 4 E5 C6 KO5 F1 C 2 A2 F...

Страница 6: ...STB In Reset signal input 36 37 P24 RXD P25 TXD Not used 38 NMI In Power ON signal input Connected to 5 V 39 APO Out APO Auto Power Off signal output 40 NC4 Not used 41 REFH Out Terminal for the inter...

Страница 7: ...D driver 91 95 P73 P77 Not used 96 LGND In Ground source 97 100 MA18 MA15 Out Address bus Pin No Terminal In Out Function 1 22 63 80 23 VSS GND 0 V source Terminals for the built in clock pulse genera...

Страница 8: ...in No Terminal In Out Function 1 Power GND In Ground 0 V source 2 Ch1 B S Terminal for a bootstrap capacitor 3 Ch1 OUT Out Channel 1 output 4 VCC In 9 V source 5 Ch1 N F In Negative feedback input 6 C...

Страница 9: ...lty Block Power supply circuit Power switch Power jack J101 Power Amp IC101 LA4596 CPU LSI1 MSM6755B 17 Oscillator Key and switch matrix CPU LSI1 MSM6755B 17 Key and switch matrix Cause Remedy Faulty...

Страница 10: ...tage setting Watching the LCD at a 41 20 angle to the horizontal adjust Vop voltage so that unenergized segments are seen dimly Output Set Voltmeter TP2 41 20 LCD Eye Input Connection Input Point Inpu...

Страница 11: ...755B 17 pin 73 3 4 1ms CH2 CH1 BWL CH1 1V 1V CH2 5 Sound signal output L ch MSM6755B 17 pin 47 6 Sound signal output L ch Q106 2SC1740SQ Emitter 5 6 1ms CH1 CH2 BWL CH1 1V CH2 1V 1ms CH1 CH2 BWL CH1 1...

Страница 12: ...11 PRINTED CIRCUIT BOARDS Main PCB JCM450 MA1M Top View Bottom View 1 2 7 5 3 4...

Страница 13: ...12 Keyboard PCB KDM6111K KY1M Keyboard PCB KDM6111K KY2M Main PCB JCM450 MA2M 6 8 9 10...

Страница 14: ...13 SCHEMATIC DIAGRAMS Main PCB JCM450 MA1M 1 2 7 5 3 4...

Страница 15: ...14 Main PCB JCM450 MA2M 8 6 9 10 2 9 V 5 3 V 0 7 V...

Страница 16: ...15 Keyboard PCBs KDM6111K KY1M KY2M Notes 1 All capacitance values are indicated in F p 10 6 F 2 All resistance values are indicated in k 103 M 106...

Страница 17: ...16 EXPLODED VIEW 13 14 9 8 6 15 18 5 12 4 17 6 1 19 10 11 3 2 7 16 R 1 R 2 R 4 R 5 R 6 R 3 R 6 R 5...

Страница 18: ...r 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...

Страница 19: ...TOR 2SB1237TV2R 1 B Q2 2250 1162 TRANSISTOR 2SA1576AT106R 1 B VR1 2775 0994 VOLUME SEMI FIXED EVND8AA03B53 1 C X1 2590 2741 OSCILLATOR CERAMIC CSACV20 00MXJ040 TC 1 C Console PCB ass y 3 6925 1310 PCB...

Страница 20: ...CASIO TECHNO CO LTD Overseas Service Division 8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 0023 Japan...

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