Casio CTK-620L Service Manual Download Page 23 | Manualshive

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LED PCB JCM447-LD2M

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Summary of Contents for CTK-620L

Page 1: ...OME BEAT ACCOMP VOLUME RHYTHMS TONE SONG BANK DEMO SONG BANK TONE 7 8 9 4 5 6 1 2 3 0 1 2 3 RHYTHM TRACK 1 LEFT STEP 1 STEP MEMORY SPLIT LAYER TRANSPOSE TUNE MIDI STEP 2 STEP 3 TRACK 2 RIGHT 3 STEP LE...

Page 2: ...LAY PAUSE STOP FF REW LEFT RIGHT Musical information function Tone Auto Accompaniment Song Bank numbers and names staff nota tion tempo metronome measure and beat number step lesson display chord name...

Page 3: ...rce types regardless of manufacturer General MIDI specifies such factors as tone numbering drum sounds and available MIDI channels for all sound sources This standard makes it possible for all MIDI eq...

Page 4: ...9 MCSB0 MCSB0 1 MA19 Power Supply Circuit Q201 Q208 D206 208 D210 VCC AVDD VDD VC DVDD VLCC LVDD LCDD APO L OUT R OUT Effect RAM 256K bit LSI5 TC55257DFL 70L EL MD0 MD7 Speakers L R Phones Output MA0...

Page 5: ...5 1 SI4 G 4 2 A4 2 A 4 2 B4 2 C5 2 C 5 2 D5 2 D 5 2 FI5 E5 1 F5 1 F 5 1 G5 1 G 5 1 A5 1 A 5 1 B5 1 SI5 E5 2 F5 2 F 5 2 G5 2 G 5 2 A5 2 A 5 2 B5 2 FI6 C6 1 C 6 1 D6 1 D 6 1 E6 1 F6 1 F 6 1 G6 1 SI6 C6...

Page 6: ...3 B6 A6 G6 F6 E6 D6 C7 C 3 A 2 G 2 F 2 D 2 C 2 A 6 G 6 F 6 D 6 C 6 NOMENCLATURE OF KEYS 0 L 1 L 2 L 3 L 4 L 5 L 6 L 7 L 8 L 9 L 0 1 L 1 2 L 2 A 4 F 4 B 5 E 5 A 6 D 6 G 7 C 6 A 6 G 6 F 2 2 L 2 G 4 E 4...

Page 7: ...s as shown in the following table VDD voltage is always generated The others are controlled by APO signal from the CPU RESET CIRCUIT When batteries are set or an AC adapter is connected the reset IC p...

Page 8: ...e h t l e c n a c o t V 0 s e m o c e b d e t c e n n o c s i r o t p a d a 9 1 N A d n u o r g o t d e t c e n n o C d e s u t o N 0 1 D N G A n I e c r u o s V 0 d n u o r G 1 1 K C B t u O t u p t...

Page 9: ...r e t t u p n i n o t t u B 4 4 B P n I t u p n i k c a J E L B A N G I S S A 5 O S t u O C A D e h t r o f t u p t u o a t a d d n u o s l a i r e S 6 O K C W t u O C A D e h t r o f t u p t u o k c...

Page 10: ...n Read write terminal High read Low write Chip enable signal High enable the writing is done at fall edge Low disenable 39 42 DB0 DB3 Not used Connected to GND 0 V 43 46 DB4 DB7 In Out Data bus 47 53...

Page 11: ...0 I M d e s u t o N 8 5 3 4 6 2 7 D N G n I e c r u o s V 0 D N G 4 4 7 2 8 D D V n I e c r u o s V 5 D D V L 2 1 9 3 B D 0 B D n I s u b a t a D 5 1 3 1 2 A M 0 A M n I s u b s s e r d d A 6 1 E C N...

Page 12: ...2SC1740SQ R 50 V 0 22 50 V 3 3 From DAC To main volume 1K 4 7K 3 3K 12 F 47 Pin No Terminal In Out Function 1 NC Not used 2 B S 2 Terminal for a bootstrap capacitor 3 OUT2 Out Channel 2 output 4 VCC...

Page 13: ...LAY PCB 1 Items to be adjusted m e t I t n e m u r t s n I g n i r u s a e M g n i t t e s e g a t l o v p o V r e t e m t l o V 2 Adjustment and Test Point Locations TOP VIEW VR401 TP3 Input Connecti...

Page 14: ...ector pin 18 4 APOFF signal JS connector pin 12 5 LED common signal L23 JN connector pin 1 6 LED common signal L22 JN connector pin 2 Key C7 1 2 3 4 7 8 9 0 5 6 A B A Sound signal R Test point T1 B So...

Page 15: ...14 PRINTED CIRCUIT BOARDS Sub PCB JCM447 MA2M Top View Bottom View Main PCB JCM447 MA1M 1 2 3 7 8 5 6 9 12 10 11 4...

Page 16: ...15 SCHEMATIC DIAGRAMS Main PCB JCM447 MA1M AT 49 30M 4 11 1 12 7 8 3 5 6 2 10 9...

Page 17: ...16 Sub PCB JCM447 MA2M 5 6 V 5 6 V 5 6 V 0 7 V 2 V 50V 1...

Page 18: ...17 Console PCB JCM447 CN1M...

Page 19: ...18 Console PCB JCM447 CN2M...

Page 20: ...19 Display PCB JCM447 LCD1M...

Page 21: ...20 Keyboard PCBs JCM618T KY1M KY2M...

Page 22: ...21 LED PCB JCM447 LD1M...

Page 23: ...22 LED PCB JCM447 LD2M...

Page 24: ...23 LED PCB JCM447 LD6...

Page 25: ...24 Console PCBs JCM447 CN3M CN4M...

Page 26: ...25 Console PCB JCM447 CN5M...

Page 27: ...26 LED PCBs JCM447 LD4M LD5M...

Page 28: ...27 LED PCB JCM447 LD3M...

Page 29: ...28 R 4 22 12 R 3 13 6 8 7 R 2 2 3 1 4 23 31 5 32 24 25 27 26 29 20 21 30 R 1 33 34 9 10 11 18 19 31 34 28 17 16 14 15 EXPLODED VIEW...

Page 30: ...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 S...

Page 31: ...APR 1 B J201 3501 7049 JACK DC HEC2305 01 330 1 A J202 3612 0665 JACK PHONE YKB21 5006 1 A J203 3612 0789 JACK YKB21 5010 1 A J204 3501 4816 JACK DIN YKF51 5051 1 B Q201 2250 1591 TRANSISTOR 2SB12371V...

Page 32: ...D LD B10175A 1 1 A 21 6926 5570 CONNECTOR FOR LCD M440488 2 2 A 22 6918 1630 COVER BATTERY M311164 1 1 B 23 6921 5030 KNOB SLIDE M311859 1 2 B 24 6926 3880 BUTTON RUBBER 447A M140632 1 1 B 25 6926 389...

Page 33: ...MA1100571A Nov 1997 Printed in Japan CASIO TECHNO CO LTD 8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926...

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