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Service Manual
an

COOLTRON
CT-01DS
CT-02OD
CT-03BT
CONTENTS
1) CT-01DS Block Diagram : Page 2
CT-01DS Circuit Diagram : Page 3
CT-01DS Illustrated Parts Breakdown : Page 4
CT-01DS Parts List : Page 5

2) CT-02OD Block Diagram : Page 6
CT-02OD Circuit Diagram : Page 7
CT-02OD Illustrated Parts Breakdown : Page 8
CT-02OD Parts List : Page 9

3) CT-03BT Block Diagram : Page 10
CT-03BT Circuit Diagram : Page 11
CT-03BT Illustrated Parts Breakdown : Page 12
CT-03BT Parts List : Page 13


1st Edition
Issued date: November 15, 2005
Issued by: KORG INC.
ZD2
R56 VOLUME1
4.7k 1
RD3.6M C64




0 R6
C46 R52
0.1u Z 1u/50 2.2k




CNA7E
CNB2A CNA2A CNB8D CNA8D
R23 R55 VR5
* * 2.2k LED4
4.7k RD901-40 10KA L11 OUTPUT
C30 BLM18BD102
LED-RED 470p J
641_12222 CNB5B CNA5B R25 R51 SW1A




CNB7E
C27 C32




IC7 NJM2121
SW2B 2.2u/50 47k 641_12222
- 2.2k




10k
0.0022u J
CNB2B CNA2B +
* R24 0.001u J




0.0022u J
INPUT




C29



C28




-3/4
R57 R58




SW-BOARD
* * * *
CNB5C * CNA5C 47k +
33k 47k




R50
C68 - C67
BLM18BD102




0.1u Z OPEN LBJ0664-6 PH2




0.047u J




RD901-40 100KA




10k
0.022u J




R53




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C33




C34


VR6
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LED3




SW-BOARD-4/4




CNB7B
1




CNB7A




CNB4B
C31




CNB4A
CNA8C




0.01u J
PH1 47p
LED-GREEN VR7 C65 0.1u Z




C35
LED2 RD901-40 50KB R54
OPEN




22k




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C66




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CNA7B
VOICE VOLUME2




CNA4A
CNA4B
LBJ0664-6 RD901-40 200KB 1u/50 C4 330p J
R22 *
R10 R11
4.7k 100k
470k C62 0.1u Z




4.7k
R12
CNB8C
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IC5D R13 C43
C5 R26
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L1 C10
1 2k
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CNB8A




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