Read Sharp LL-T155A (serv.man6) Technical Bulletin online
LLFA001
Sharp Electronics (UK) Ltd., Technical Services Group
1.Model Name:
LL-T155A
2.General:
There was a problem of fluctuations occurring in the display of the model listed above
during operations of the machine. (The incidence is low.) The following action to be carried
out as a measure to alleviate this problem is reported below.
during operations of the machine. (The incidence is low.) The following action to be carried
out as a measure to alleviate this problem is reported below.
3.Symptom:
* The display is misaligned approximately 3 to 4 cm to the right.
* The display is divided vertically.
* Horizontal shimmering occurs in the display.
* The display is divided vertically.
* Horizontal shimmering occurs in the display.
4.Cause:
The problem described above was caused by unstable oscillations which resulted from
parts deviation and temperature fluctuations in the oscillation circuitry of the XTAL oscillator
(8MHz).
parts deviation and temperature fluctuations in the oscillation circuitry of the XTAL oscillator
(8MHz).
5.Action:
In the event that the problem described above occurs, action should be carried out on the
interface PWB.
interface PWB.
(For the factory)
Running change has been carried out from 2000 mid-May production.
As a measure to distinguish between the old units and the new ones, a round, yellow
label has been affixed to the boxes beside the bar code label, and also to the bottom
surface of the units themselves.
As a measure to distinguish between the old units and the new ones, a round, yellow
label has been affixed to the boxes beside the bar code label, and also to the bottom
surface of the units themselves.
6.Remarks:
7.Parts Action:
Parts code
Model
name
P/G
No.
Current parts
New parts
Price
rank
Parts name
Effective
time
Interchange
ability
LL-T1510E 3-4
0MRFP18000402 RCRUB1001MPZZ
AR
Oscillator
2000/5
6
<Interchange>
1. Interchangeable.
4. Not interchangeable.
2. Current type can be used in place of new type.
New type cannot be used in place of current type.
5. Interchangeable if replaced with same types of
related parts in use.
3. Current type cannot be used in place of new type.
New type can be used in place of current type.
6. Others.
COUNTERMEASURE OF DISPLAY
FLUCTUATIONS PROBLEM
TECHNICAL BULLETIN
Date:
04 December 2002
Model: LLT155A
Ref.:
Ref.:
002
Colour: White
Page:
Page:
1 of 3
LLFA001
Sharp Electronics (UK) Ltd., Technical Services Group
LLFA001
Sharp Electronics (UK) Ltd., Technical Services Group
