Main Unit Inspection - HTC Dream Service Manual

Doc. Title
The inspection condition of Newton ring:
a. Inspection distance: 30cm / Inspection time: 5 sec
b. Ambient illumination is to be 500-1000 Lux (Incandescent lamp)
c. Inspection should be performed under the condition that LCD screen could reflect the mirror image of
lamp.
d. The criteria of Newton ring's tinges and measure of area must follow up the worst-case sample.
e. The area of Newton ring is smaller than 10 * 10 square mm.
Display inspection
Inspection Defects
Electrical Characteristic
Defects
Foreign Scratch,
Objects or Lint
on power off
status

6.2. Main unit inspection

GAP INSPECTIONS
Description
Gap between each key and
1.
ME parts.
Gap between all generic ME
2.
parts
HTC CONFIDENTIAL
HTC Corporation
.
Dream Service Manual
Single
Bright
2 adjacent
Dots
3 or more
adjacent
Single
Dark Dots
2 adjacent
Dark or Bright lines
All Allowable Dots Defects Total Number ≦ 3, S > 5mm.
Shift and tilt of screen
viewed area
Scratch
Lint (linear foreign objects)
Spots
Fish eye on film
Breakage on film surface Not acceptable
Total acceptable defect quantity ≦ 10
Can't stuck up or no click feeling.
It couldn't allow stuck up at pressing process.
Gap between all generic ME parts < 0.4 mm
Doc. No.
Issued Date
Revised Date
Page
Accept Level
Red+ Green+ Blue ≦ 3, S > 5mm.
0
0
Total Number ≦ 2, S > 5mm.
0
0
The black edge around display area must
be detected by front view.
0.03 < W ≦ 0.1 (mm)
L ≦ 5 (mm), N ≦ 2 (mm)
0.03 < W ≦ 0.1 (mm)
0.3 < L ≦ 3.0 (mm)
N ≦ 5
≦
0.1 < D 0.3 (mm), N
≦
0.1 < D 0.4 (mm), N
Accept Criteria
DOC-00045020
2008/07/14
2008/10/20
87 of 113
Level
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
≦
4 Minor
≦ 4
Minor
Minor
Minor
REV.
A04