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D20
R51/4k7
C32/22n
C10/47u
C45/220u
D13
D14
R85/10k
D15
D22
R50/100k
R45/10k
D23
C27/470p
C29/1n
C28/1n
C26/4n7
C33/22n
R27/6k8
R58/8k2
R33/2k2
R62/10k
R32/33k
D4
R29/47k
D3
D5
C22/1u
Q14
D101
Peak Level
150k
180k
220k
CA1458C
OK
OK
OK
OK
uPC1458
OK
OK
NO
NO
R78/8k2
1
5
8
-
7
IC4-b
+
-14v
D7
D8
C34/10u
R64/3k9
C35/4u7
R65/1k5
R76/18k
R81**
-14v
R83/220k
Chorus Vibrato
R17/470R
Q17
Vibrato Rate/100kC
Redrawed from factory schematic by:
WWW.TURRETBOARD.ORG
R63/4k7
R77/2k2
4
R57/100k
Chorus
R79/4k7
Depth/50kB
C43/82n
IC4-a
+
R81**
120k
+14v
6
-
D9
R75/33k
R68/330k
3
-14v
+14v
R80*
VR12/10kB chorus int
-13v
-14v
D102
IC4
-14v
R54/4k7
VR1/5k
R28/47k
R34/33R
R35/1k
R82/100k
C4/47u
C44/220u
R84/10k
R63/1k8
C48/220u
C46/220u
Re IC4 vs R80 and R81
When using uPC1458 for IC4, R80 must be
120k and R81, 150k
When using CA1458C for IC4, R80 may be
either 120k or 100k and R81, either 150k or 220k
R80*
9
-23v
R88/1k8 C49/220u
7
C47/220u
6
+13v
Q16
D1
D1
8
D1
F2 0.5A
AC18V
D1
AC18V
Q15
Normal
R86/15k
Q6
2
R10/470R
R61/10k
C20/47p
-14v
+14v
Effect
R60/1M
-14v
C19/250p
Q5
R31/33k
R30/2k2
R38/470R
D13
C37/15p
R66/22k
-14v
C42/47n
4
Q12
R89/10k
R67/4k7
C40/100n D11
6
1
+
Q13
Q4
C21/47p
C41/33n
5
IC3
R92/470R OUTPUT
R90/2k2
C17/470u
R36/100k
D6
2
7
-
STEREO
-14v
D12
R70/100k
C38/100n
R74/100k
3
D2
C18/250p
+14v
C36/47p
R71/10k
* All diodes are 1S1555, unless otherwise noted
* All resistors are 1/4 watt, 2,5% rating
* All electrolytic capacitors are above 20V rating, unless otherwise noted
* All diodes are 1S1555, unless otherwise noted
* Capacitors marked NP are non-polar type
* Capacitors between 470pF and 0.1uF are mylar film type
* Capacitors below 250pF are ceramic type
* LED's are SLP-24B
R25/100k
R26/6k8
Q8
R73/470k
C39/1uF
R72/3k3
R46/2k2
C30/470n
D1
Q3
R56/10k
Q10
-14v
-14v
Q9
C23/33n
R4/100k
12
R40/10k
C16/10uF
C15/10uF
R39/47k
R7/10k
2
R41/22k R42/6k8 R43/15k R44/15k
R24/100k
11
R23/1k
R37/47k
R5/680R
R6/330k
4
C3/1uF
Q1
R3/56k
C1/1n
R1/4k7
13
Q7
R59/1k
C11/1n
+13v
* IC's and Transistors
IC1, IC2: TA7135P
IC4: uPC1458
Q1, Q2, Q7, Q10, Q16: 2SC900
Q3, Q4: 2SA493
Q5, Q6: 2SC538F
Q8, Q9, Q14: 2SA733
Q15: 2SD234
Q17: 2SB434
F1 0.5A
MONO
R55/1M
IC-2
R22/10k
-14v
R2/1k5 C2/1uF
3
R21/100k
C107/15p
C14/100n
R19/8k2
4
-13v
D16-D19
1N4003 x 4
OUTPUT
Q11
7
14
R18/10k
1
+
Boss
Ce-1
Chorus Ensemble
C8/6n8
5 6
IC1
1
Q2
C12/4n7
-
2
R13/22k R14/10k R16/10k
R15/10k
Level 50kA
R8/10k
R9/100k
7
3
+23v
R91/470R
+13v
C5/47p
INPUT
C13/10uF
R20/10k
R53/3k3
C7/470n NP
R11/470k
R48/1k5
+14v
R12/10k
R52/3k3
D21
C31/470n NP
R47/12k
Vibrato
schema ce1 - turretboard.pdf (PDF, 89.71 KB)
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