Roland GP-8 - CHANGE INFORMATION; IC35 Connection Modification

CHANGE INFORMATION хижа
п reconnecting IC35 of MT board 3 по1с35УУЁЕХЖИ
Change connection of 1035 pin 6(G1) from 1035 6 ` ab 1023
a +5V line to IC23 pin 54. 22 е кезу уж id
REASON m ДЭН
For more positive synchronization of ІС22 1622 - тр PY - IC3 + +
(gate array)and 1С35 operational timings. касы т у Ерера та d
2 * 20-12 3
This will prevent the following problems: * 7 МАН ч АЖ
* Inproper Chorus effect * #Жоттх 7 > #4 ута Фо Э
Ж Incorrect LED reading BO- DH Ё үр Ё
Ж Disabled effect even it is set to оп
togather with other effect(s). жазын .
Шаба бы арын 1, Ы 5 761000 - 783499
МТЖ--Е 7314466001 b 229204350]
SN761000 - 783499 MT board 7314466001 rm A B zn Mor aae ын ae ЧК
(See Fig.A and B.) Jumper connect 1С35 Л
ріп 6 to ІС23 ріп 54 with unnecessary foil 2, 81 Ж 783500 - ПР |
pattern cut. - (Fig.BB R) Х?-- уЖБ.о cnt Fw МТЖ -
SN783500
-
UP
Е
12
7314466002
(pcb
2292043502)
№
5.
(See Fig.B.)Relayout foil pattern MT board
to provide the above reconnection.the part
number of MT board is changed to 7314466002
(peb 2292043502). !
MT BOARD 58761000 - 783499
(mg ши.
па = 275 ТН па :
Е 22-23 гдс =
| ШЕТ дави
N
Fig. A
=
VIEW FROM
FOIL
SIDE
CUT
PATTERN
7
әнш
B
E
20000 «—————— (1035)40Н1З8Р
VIEW
FROM
PARTS
SIDE
LIE
ВЕН Бас... YUU, иң = [>>
1838 ! mn) cmm A
Ц В
ШГП ro m
dd ү сет Drum
ю.4 2
MT
BOARD
50761000
-
UP
|
са
EN
ПЕШИ
oii
FR
m f таа m,
JUMPER
Sp anth Е
Sr cH
E с
“г
Fig.B
17