Toshiba 32WL46B, Service Manual

Page: 7 / 92

1. ENTERING TO SERVICE MODE
(1) Procedures
1) Press MUTE key of remote hand unit to in
d
icate MUTE
on screen.
2) Press again MUTE key of remote hand unit to keep
pressing until the next procedure.
(OSD display disappears.)
3) In the status of above (2), press MENU key on TV set.
(2) During service mode, indication S is displayed at upper right
corner on screen.
(3) Service mode is not memorized as the last-memory.
2. TEST SIGNAL SELECTION
The function of VIDEO test signal selection is cyclically
changed with VIDEO key (remote unit) in Service mode.
3. SERVICE ADJUSTMENT
(1) ADJUSTMENT MENU INDICATION ON/OFF :
MENU key(on TV set)
(2) During display of adjustment menu,the followings are
effective.
1) Selection of adjustment item :
POS UP/DN key (on TV/Remote unit)
2) Adjustment of each item :
VOL UP/DN key (on TV/Remote unit)
3) Direct selection of adjustment item
R CUTOFF : 1 POS (Remote unit)
G CUTOFF : 2 POS (Remote unit)
B CUTOFF : 3 POS (Remote unit)
4) Data setting for PC unit adjustment
SUB CONTRAST : 4 POS (Remote unit)
SUB COLOR : 5 POS (Remote unit)
SUB TINT : 6 POS (Remote unit)
5) Screen adj
u
stment mode ON/OFF: Previous
6) Test signal selection: VIDEO (Remote unit)
* In service mode, serviceable items are limited.
(3) Self check display : 9 POS (Remote unit)
* Cyclic display
(4) Initialization of memory (QA02 E
2
PROM) :
CALL (Remote unit)+POS UP(TV)
Causion : All data of memory IC (including factory setting
value) is initialized by this operation.
(Replacement of memory IC is required.)
(5) Initialization of self check data :
CALL (Remote unit)+POS DN(TV)
(6) BUS OFF :
CALL (Remote unit)+VOL UP(TV)
Test signal
No.
0
1
2
3
4
5
6
7
8
9
10
0
Name of pattern
Signal OFF
NTSC All Red signal
NTSC All Green signal
NTSC All Blue signal
NTSC Cross hatch
NTSC All white signal
PAL All Red signal
PAL All Green signal
PAL All Blue signal
PAL Cross hatch
PAL All white signal
Signal OFF
Table 1
SERVICE MODE
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