Text preview for : ARM316992.pdf part of Sharp AR-M256 AR-M257 AR-M258 AR-M316 AR-M317 AR-M318 AR-5625_5631 AR-M256 AR-M257 AR-M258 AR-M316 AR-M317 AR-M318 AR-56255631 TECHNICAL BULLETIN for Andromeda Group 2



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Date: Model: Ref.: Colour: Page:

22 November 2007 AR-M256/M316 009 White 1 of 2

TECHNICAL BULLETIN
Countermeasure against abnormal noise produced near the power supply PWB 1. Model Name 2. Symptom 3. Cause AR-M256/M316 Abnormal noise may be produced near the power supply PWB immediately after turning on the power or during operation. Abnormal noise has been produced due to resonance of the ferrite core mounted to the HL relay harness on the power supply PWB. This causes a space between the resin case for the ferrite core and the core created by the combination of the resin case with larger size error and the core with smaller size error. To prevent resonance of the ferrite core, the core holder section in the resin case has been padded by 0.1 mm in order not to create a space between the resin case and the core. Use the tie band (LBNDJ0013FCZ1) to fix the ferrite core. Since the same parts are also used in other places, they have been changed for standardization.

4. Description

Sharp Electronics (UK) Ltd., Document Systems Support

5. Action

Executed from the production in July, 2007
No Model name AR-M256 AR-M257 AR-M258 AR-M316 AR-M317 AR-M318 AR-5625 AR-5631 Version P/G No. Current parts Parts code New parts Parts code Price Q'ty rank Parts name Effective time Interchange ability Note

1

ALL

10 -31 31 -49

RCORF0021QSZZ

RCORF0031QSPZ

AK

3

Core

Mid'07/7

3

1. Interchangeable. 2. Current type can be used in place of new type. New type cannot be used in place of current type. 3. Current type cannot be used in place of new type. New type can be used in place of current type. 4. Not Interchangeable. 5. Interchangeable if replaced with same types of related parts in use. 6. Others.

Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

Sharp Electronics (UK) Ltd., Document Systems Support