Sharp 29A-SX1, Service Manual

Page: 5 / 86

5
29A-SX1
29A-SX5
29A-SX8
SX-68JF200
5
ADJUSTMENT PRECA
UTION
The model is a mixture of the adjustment items of I
2
C B
US-CONTR
OL and the e
xisting analog adjustment.
Moreo-
v
e
r,
since the adjustment with I
2
C BUS-CONTR
OL is composed of the items which are set with the initial v
alues
(preset v
alues) alone and the data v
a
riab
le items
, ref
er to the f
ollo
wing.
1)
Setting method to the micr
ocomputer service mode
1
When the
TP1001/1002 are shor
t-circuited, enter into the ser
vice mode (I
2
C B
US CONTR
OL adjustment
mode).
2
The modes can be sequentially selected with the CH DO
WN k
e
y of R/C
. (or b
utton of set behind door
.)
3
The modes can be sequentially selected in the re
v
ersed order of
2
with the CH UP k
e
y of R/C
. (or b
utton of
set behind door
.)
4
The data can be con
v
e
rted with the
V
OLUME UP/DO
WN k
e
y of R/C
. (or b
utton of set behind door
.)
5
When the shor
t circuit betw
een the
TP1001/1002 is cut off
, it will be released from the ser
vice mode
.
2)
Initial v
alue (preset v
alue) setting
1
When the MAIN PO
WER s
witch set at the ser
vice mode side is tur
ned on, the initial v
alue will be automatically
set only on the ne
w E
2
PR
OM (discr
iminated with the head 4 b
ytes).
2
The initial data is set as sho
wn in the attached sheets
.
3
T
a
k
e
care that there are the items which need be changed and the items in which the initial v
alues continue
set. Instr
uct that it m
ust set at the ser
vice mode side as sho
wn in Item 2-
1
and the MAIN PO
WER s
witch m
ust
be tur
ned on when the lamp is first tur
ned on after the chassis is assemb
led.
T
a
k
e
care that the beam current ma
y e
xcessiv
ely flo
w if the lamp is tur
ned on unless E
2
PR
OM is initializ
ed.
3)
Since the E
2
PR
OM memory is submitted with the attac
hed sheets f
or ref
erence
, use it.