Casio CTK-630 - Manuals - manualsarea.com

Page 2 - ELECTRICAL; SPECIFICATIONS; GENERAL

— 2 — ELECTRICAL Nominal Limit Current drain with 9 V DC: No sound output 220 mA 220 mA ± 30 % Maximum volume 900 mA 900 mA ± 30 % with white keys C4 to G5 pressed in Recorder toneVolume: maximum, Touch response: maximumLayer: On, Reberv: Off Phone output level (Vrms with 8 Ω load each channel): wit...

Page 3 - BLOCK DIAGRAM

— 3 — BLOCK DIAGRAM KC0 ~ KC7 FI0 ~ FI10SI0 ~ SI19 Working Storage RAM (64K-bit) LSI103 SRM2264LM90 MIDI EA0 ~ EA12 EIO0 ~ EIO7 Sound Source ROM (16M-bit) LSI104 MX23C1610MC- 12CA20 LRCK SO BCK D/A Converter IC102 UPD6379GR Filter Q108, Q109Q119, Q120 MainVolume Power Amplifier IC101 LA4598 LED driv...

Page 4 - CIRCUIT DESCRIPTION; KEY MATRIX

— 4 — KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 FI0 C2 (1) C#2 (1) D2 (1) D#2 (1) E2 (1) F2 (1) F#2 (1) G2 (1) SI0 C2 (2) C#2 (2) D2 (2) D#2 (2) E2 (2) F2 (2) F#2 (2) G2 (2) FI1 G#2 (1) A2 (1) A#2 (1) B2 (1) C3 (1) C#3 (1) D3 (1) D#3 (1) SI1 G#2 (2) A2 (2) A#2 (2) B2 (2) C3 (2) C#3 (2) D3 (2) D#3 (2) FI2 E3 (...

Page 5 - POWER SUPPLY CIRCUIT; RESET CIRCUIT

— 5 — Key Second contact (2) First contact (1) FI KC SI Reset IC IC105 RE5VA35AA DSP LSI101 HG51B227FB VDD Reset signal VDD Battery set RESET VDD POWER From power switch NMI APO PLE CPU LSI105 UPD912GF-3BA SCKO Note: Each key has two contacts, the first conatct (1) and second contact (2). POWER SUPP...

Page 8 - FILTER BLOCK

— 8 — AVDD 470 AG AG 1K 1K 1K C333(H) C332(H) 2SC1740SQ 1K AG AG 2SC1740SQ AVDD 47K 22K 50V0.22 µ 10V22 µ From the DAC To main volume Synch signal Data Word clock Bit clock Data Word clock Bit clock DSP LSI101 HG51B227FB DAC IC102 UPD6379GR CPU LSI105 UPD912GF-3BA L OUT R OUT SI LRCK CLK SO WCKO SCK...

Page 9 - LED DRIVING

— 9 — LG DSP LSI101 HG51B227FB LVDD PB0 ~ PB4 IC103 BA612 LED Driver LC0 ~LC4 Q110 ~ Q117 LED Driver PA0 ~ PA7 La ~ Lg, Lp POWER AMPLIFIER (IC101: LA4598) The power amplifier is a two-channel amplifier with standby switch.The following table shows the pin function of IC101. LED DRIVING Pin No. Termi...

Page 10 - TROUBLESHOOTING

— 10 — TROUBLESHOOTING Nature of Trouble Faulty Block Cause/Remedy No power Power supply circuit Faulty Q101 ~ Q106. Replace Q101 ~ Q105. Faulty D101 ~ D105. Replace D101 ~ D105. Power jack (J101) Open J101 or poor soldering. Replace J101 or resolder. Reset IC (IC105) Faulty IC105. Replace IC105. CP...

Page 11 - MAJOR WAVEFORMS

— 11 — MAJOR WAVEFORMS 1 POWER ON signalUPD912GF-3BA pin 21 2 APO signalUPD912GF-3BA pin 3 3 Reset signal for the DSPUPD912G-3BA pin 99 5 Key scan signal KC0UPD912GF-3BA pin 31 6 Key scan signal KC1UPD912GF-3BA pin 32 7 Key scan signal KC2UPD912GF-3BA pin 33 4 Synchronizing pulseUPD912GF-3BA pin 6 A...

Page 12 - PRINTED CIRCUIT BOARDS

— 12 — PRINTED CIRCUIT BOARDS Main PCB JCM461-MA1M Console PCB JCM461-CN1M Top View Top View BL R110 R109 75 250 E 5 R137 C116 300 PR Y L105 C208 C167 IC105 X102 3 C174 C173 D110 R182 R180 R302 C164 R179 R178 75 1 1 C207 200 150 250 R309 R181 R272 R273 R274 R275 5 R292 75 C206 R276 R277 R278 R279 20...

Page 13 - SCHEMATIC DIAGRAMS

— 13 — 9 10 11 12 13 14 15 16 20 1 2 3 4 17 5 6 7 8 19 18 SCHEMATIC DIAGRAMS Main PCB JCM461-MA1M Notes:1. All capacitance values are indicated in " µ F" (p=10 -6 µ F). 2. All resistance values are indicated in " Ω " (k=10 3 Ω , M=10 6 Ω ).

Page 16 - EXPLODED VIEW

— 16 — 13 15 14 12 1 2 8 3 4 5 6 7 9 10 12 21-2 21-1 16 17 18 19 20 21 22 11 27 25 24 26 23 EXPLODED VIEW

Page 17 - PARTS LIST

N o t e s : 1 . P r i c e s a n d s p e c i f i c a t i o n s a r e s u b j e c t t o c h a n g e w i t h -o u t p r i o r n o t i c e . 2 . A s f o r s p a r e p a r t s o r d e r a n d s u p p l y , r e f e r t o t h e" G U I D E B O O K f o r S p a r e p a r t s S u p p l y " , p u b l i ...