Viewsonic VA930-1 Service Bulletin 001

ViewSonic® Corporation

381 Brea Canyon Road • Walnut, CA 91789 • Tel: [phone] • Fax: [phone]

Service Bulletin

SB # VA930-1_SB_001

To : Authorized Service Providers	Issue Date: June 2, 2003	ECO # : 2534-1
Model # : VA930-1	Cut-in S/N :
	S/N Range :
	Target Date : Sept. 2002 production

Subject/Symptom: Red video noise may be visible under 640x350 @70Hz and 800x600 @72Hz video mode.

Prepared By :

Tommy Jue

Approved By :

Eileen Nguyen

Purpose:

Red video noise may be visible under 640x350 @70Hz and 800x600 @72Hz video mode. Only a very small number of production units are impacted.

Symptom: Depending upon the above modes input, the horizontal lines in a white crosshatch pattern will show a reddish color. This is an indication of a unit impacted by noise in this video line on the main board.

Service Bulletin Application:	ASP Distribution:
Recall.	- USA ASP
Service Inventory, Repairs In-Process & No Problem Found (NPF).	- Canada ASP
Repairs In-Process & NPF.	- Latin America ASP
Repairs In-Process.	- 3rd Party ASP
Technician judgement for unit under service (symptomatic).	- Supplier Service ASP
	- Limited ASP
	- ViewSonic Internal
	- Complete ASP Listing

Change(s)/Countermeasure(s):

Part Location	Part Description	Part Number	Repair Action	Comment	Failure	Repair
					Code	Code
R44	30Ω (100MHz) bead	E-L-0407-1558	Replace original 60Ω		G0A	D5
			(100MHz) resistor with this
	core resistor
			new part value.

*Note: Repair action(s) that consist of the countermeasures contained in this or any other service bulletin(s), shall use D5 as the repair code. All other repair action(s) outside of the service bulletin(s) shall use the appropriate repair codes contained in the Repair and Defect Codes Handbook (i.e. C7).

Please contact the Quality Assurance Department at [phone] for further information.

4.19: Form, Service Bulletin	10/30/2002
SERV-BULL-V1	Page 1 of 1