Viewsonic VA930-1 Service Bulletin 001

ViewSonic® Corporation

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

To : Authorized Service Providers Issue Date: June 2, 2003 ECO # : 2534-1
Model # : VA930-1

Subject/Symptom:
Prepared By :

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

Tommy Jue

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

Change(s)/Countermeasure(s):

Part Location Part Description Part Number Repair Action Comment Failure

R44

*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).

30Ω (100MHz) bead

core resistor

Service Bulletin

SB # VA930-1_SB_001

Cut-in S/N :
S/N Range :
Target Date : Sept. 2002 production

Approved By :

E-L-0407-1558

Eileen Nguyen

Replace original 60Ω
(100MHz) resistor with this
new part value.

- Limited ASP

- ViewSonic Internal

- Complete ASP Listing

Repair

Code

G0A D5

Code

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

4.19: Form, Service Bulletin 10/30/2002

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