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GX-1
(S/#
5030 ~
)
TEK
Circuit Board Adjustment, Wiring
Wirings
TERK
No | Terminal |e: ]
Direction
| No.| Terminal |e" |
Direction
40| +15
g0| +15
1.
SK second touch zero adjustment -- VR1
39|
+15
79
+15
38| —15
78|
—15
IC 2
Check at
37| —15
7|
—15
SK Ist touch detector
SK-KEY
"_
i
a
ss!
76
Cc
|WH|
PN3-@-C
;
Tone cabinet output Amplifier
|
a
VOL)
No
de-
0.0V
oc
a
Without the key depressed, adjust for
35 |
|
75|
GI
of
Side0°
HH
i
:
iden | BS —
pressing |
ee
34
74| LO | BE | PN7-@-M
3
9
© 2. vis ath
al
fe
ty i,
efano
ae
al 3
ae
ey Sted.
ofc.
J
A
Se
c Agi oat #8
a
Se
Fullyhold
ae
QV + 1Vpc_ |
Adiust for 9v + 1VDC
at TO2 (69)
33 |
T3 | OR | TC2-SW
73|
UO | GR|
PN5-@-M
= | | 3 |e eae ate
are
Tage eh oe
rt
SD)
ppice
down
an tev
32) T1 | BR | TC2-SW
72| KI | GY | KL-KN-C,
B45 Saco
tar
Py
ary 1 ee
a
sg
a s
2.
Solo osc signal attenuator level adjustment -- VR14
311
T2 | RE | TC2-L1
71|
UI | VI | PN4-@-M
53%
z:
fa) (2 i
H 7
uP Bei a
2%
a
With SK pressed fully, adjust VR14 so that measurement at
| 30} TL | YE | PNI-@TO2
|70|TO2|
vI
PN4-@-C
f i
'
ge
ion
as
the OS terminal (22) is the same level as the S| terminal
29
69|TR2/
RE | PN3-SR-TR2I
cabinet
aes
ees
B o y tasaesd POS $y Ge 8
ctor Lx sub ose 'VCA,)
(21). -- approx. 3Vpp.
28 |
lid
68| TR 2/ORx2| PT?
Re
ea gal |
PBA
°
{
ste Pied
E
=
°K
me
eS
3.
SK third touch adjustment -- VR3
m1
|
671 TR2|
BE|
PN2-2T-1
°
Ie | Hho otto
eto O84
otro
=
.
£c:
_
:
alge ga Gar Se: wa
NS aioe atte trick and {[2{70i{ a waa [|
e
al
right.
25 TR 1| YE | SKI-Cs-M
| 65 TO 3 ) GR | PN3-SR-TR3
ae
eens
Adjust for 3Vpp when a 47KQ. load is applied to TOS (65)
| 24) TR1) GR | SK1-Ce-C
64
terminal.
3Vpp
23;
GO
63)
KO
4.
Sub OSC upper manual attenuator level adjustment -- 'VR15
22)
SO | YE | PN3-SR-TR22 | 62
Conditions:
Set knee lever to maximum.
21;
SI | VI | PN2-@-C
61!
+15'|
OR | SK1-C;-B
—
:
ie 021 Hie
a i.
"le ee & oy: mS
[Fee
setae wl
for the same level at the UO (73) terminal as | 99 TR3/
Gy | PN2-3T-1
60|
TP
bsnl
oar
tbe
Bes 3 Ox fis 08 g h ox
=
e e e
:
19)
O1
|S-BR| TC-5CH
59/
02
|$-RE| TC-5CH
ae
ry Ha
ae
wad
al
a
" e r Hots
o e
5.
Sub osc lower manual attenuator level adjustment -- VR16
18)
03
|SoR|
TC-5CH
58
pe BEES any
at
ae
Pee
kb eg
kt sede
SP + amiagagen
Conditions: Set knee lever to maximum.
al
G1
tet ae
=
.
eee
Bae
Peg
det Hie bag SE.
|[pcrove 10 ampere
Adjust VR16 for the same level at LO (74) as at LI (70).
Id
P
(for Expression Dynamic range Compressor )
=
ee
6.
Exp. -2.5V voltage adjustment -- VR6
m9)
Ric
=
ae)
Conditions:
Expression pedal fully depressed.
B
Cees
Te
=
Adjust VR6 for -2.5V at TP (60).
14) 15
54] 14 |SWS| PN2-@-2
7.
SK first touch level adjustment -- VR20.
13,
13
53)
12
Adjust for +10V at TO1
(26) when the solo key is switched
12}
11
52}
06
\S:BRS TC-U
on at its fastest speed.
11)
L4
| WH|
PN9-@a-1
51
8.
Tone cabinet output level adjustment
10|
L3 | GY | PN9-@a-1
50|
C4 | YE|
PN9-@b-C
Conditions:
Set tone —
switch to "3". Fully depress
9)
L2 | vil
PN9-@a-l
49|
C3 | OR|
PN9-@b-c
expression pedal.
*
Upper -- VR17: Adjust for +10dB at 06 (52) when com-
J
=
a
.
pared to 01 (16) -- i.e., approx. 3 times.
E p
ERE
| PSO-@e")
"|
3) pee St
*
General -- VR18:
Adjust for +10dB at 07(47)when com-
6|
C1 | BR|
PN9-@b-C
46
pared to 03 (18) -- ie. aprox. 3 times.
5| EI 2|
RE|
EXP-EXPCdS | 45]
L5 | GG}
PN9-@a-1
*
Lower -- VR19:
Adjust for +10dB at 08 (15) when com-
4| E11]
OR | EXP-EXPCdS | 44]
C5 | GR!
PN9-@b-C
pared to 02 (17) -- i.e., approx. 3 times
3|
&
43|
£E
2|
E
42)
E
1 |
E
41|
E
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