SERVICE BULLETIN.pdf

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SERVICE BULLETIN
No.
Date
Factory Factory Model Suffix
Model
Model No.
Factory Factory Model Suffix
EKHQ RU-44SZ51D AALLKZ RU-44SZ51D
EKHQ RU-52SZ51D AALLKZ RU-52SZ51D
Buyer
Buyer Name Buyer Code
LGEUS
US000001
: 0BTT20040006
: 2004-06-09
Model No.
EKHQ RU-44SZ61D AALLKZ RU-44SZ61D
EKHQ RU-52SZ61D AALLKZ RU-52SZ61D
Buyer Name Buyer Code
ZENITH
US007515
Buyer Name Buyer Code
LGEAI
US000002
EFFECTIVE
2004-
DATE
06-08
Subject
No. Loc No.
EFFECTIVE
405KT00001~405KT00905/406KT00001~406KT00098/404KT01500~405KT
FROM
(SERIAL NO.)
RU-44/52SZ51/61D - 1ST COLOR WHEEL ADAPTION
Before Change
Part No
DESC./SPEC.
Part No
After Change
DESC./SPEC.
Note K-Code Remark
Reason Of Change
Initially, RU-44/52SZ51/61D models were adapted to a 2nd version color wheel. However, the 2nd color
wheel was out of stock, so the 1st color wheel was used for the serial numbers below.
You first have to check which color wheel is used in those models.
1. If there is a driver board defect and you need to replace the driver board, then
you have to check driver board software version(DDP1010)
6871VSME80B(version : 2.03) = 2nd color wheel
6871VSMJ34A(version : 2.05) = 1st color wheel
2. If there is a color wheel defect and you need to replace the color wheel, then
check DDP 1010 version
version 2.03 = 2nd color wheel
version 2.05 = 1st color wheel
2nd color wheel assembly : 3141VSN679A
1st color wheel assembly : 3141VSN679B
2nd color wheel : 5230V00014B/C
1st color wheel : 5230V00027A
3. If there is optic engine defect that requires replacement, check the attached BOM for the
correct Part Number.
4. The serial numbers below were effected
Applicable serial numbers are:
405KT00001~405KT00905
406KT00001~406KT00098
404KT01500~405KT03200
** FILE THIS SERVICE BULLETIN WITH YOUR SERVICE MANUAL
NOTE(**) : INTERCHANGEABILITY CODE
Parts
Original
A
New
Original
B
New
Original
C
New
Original
D
New
Set
-Original or new parts may be used in early or late
Early
production sets.
Late
-Use original parts until exhausted, then stock new parts.
1. To improve performance
2. To improve productivity
KEY-WORD CODE
3. To improve reliability
Early
-Original parts may be used in early production sets only.
New parts may be used in early or late production sets.
Late
-Use original parts where possible, then stock new parts. 4. Change of material or
dimension
-New parts only may be used in early or late production
Early
sets.
5. Addition
Late
-Stock new parts.
6. Deletion
Early
-Original parts only may be used in early production sets.
New parts may be used in late production sets only.
7. Correction
Late
-Stock original and new parts.
CHIEF ENGINEER,
Factory.

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