Philips FX20 Service Manual page 15

Reference: WX-B-009-01
Model : FX20 FX30 FX50
REMARKS:
MECHANICAL
3.5
3.5.1 Shock Sensitivity
Refer to Quality plan for the details of the test discs and testing method.
Requirement:
No muting, plop sounds, picture freeze/jerk or audible/visible interference when impacting with force of -
In the ±X and ±Y directions: F ≥ 3g / 3ms, ΔV = 0.06ms
In the ± Z direction:
Where g = acceleration due to gravity.
3.5.2 Thermal Performance
Refer to Quality plan for the details of the testing method.
Requirements:
1. Set should function normally
2. Temperature rise of accessible parts such as metallic enclosures (casing) shall not exceed 40˚C
above the ambient temperature.
3. Temperature rise of PCB prints shall not exceed 85˚C
4. Temperature readings of all mechanical / electrical components and modules shall not exceed their
specification limits. The calculated junction temperature of semiconductors shall also not exceed
spec limits.
3.5.3 Noise Specifications
Test Conditions:
Measurements are to be made inside an Anechoic Chamber (echo-free environment) with ambient noise of
less than 16dBA.
Measurements are to be taken at the following positions: -
(a) Top-Surface and at center of Front-Cabinet
(b) Front-Surface and at center of Front-Cabinet.
The microphone is to be positioned 10cm from abovementioned surfaces.
Set Functional State
Idle State
Tray Open/Close
CDDA & SACD --- SBC442
(Stereo & Multichannel)
-
2
3
Suhaofeng/Tangbing
NAME
CHECK
Title: Product Performance
Specification
F ≥ 2g / 3ms, ΔV = 0.04ms
Standby Mode
Set On and "No Disc" mode
Start/End peak noise
Tray running noise (RMS)
Play (first & last tracks)
FX20 FX30 FX50
Mini Audio system
2014-02-28
DATE
2-13
19 10
Rev./Status: 0.2 / Draft
Page 16 of 19
Requirement
Normal
< 20 dBA
< 20 dBA
< 65 dBA
< 50 dBA
< 35 dBA
<30dBA
- 2013-12-09
- 2014-02-28
- 16 A4