【Customization】EXP40 backlight
Last modified date: 2021/01/05 Views: 3647
Description

Is there any way to change the intensity of LCD backlight on the EXP50/EXP40?


Resolution

You can adjust the backlight on LCD screen of the EXP50/EXP40 expansion module via the host phone. The backlight on the LCD screen of the EXP50/EXP40 expansion module is synchronized with that of the host phone.

To adjust the backlight on the LCD screen of the EXP50/EXP40 expansion module connected to

the host phone (Taking the SIP-T46S IP phone as an example for reference):

1. Press Menu->Basic->Display->Backlight on the host phone.


2. Select the desired value for Active Level, Inactive Level and Backlight Time. If Backlight Time is selected as 30s and keep inactive for 30s, then phone will turn to “Low” level and the EXP40 will turn to “Low” level at the same time.

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Note:

For firmware V80 or above, the backlight level of EXP40 will keep synchronization with host phone.

For firmware which older than V80, if select the Active Level as “1” or “2”, the host phone backlight will get progressively dimmer but EXP40 turns the backlight off completely. If select the Active Level as other values, it will keep synchronization with host phone.


More Information

EXP50 Applies to Yealink SIP-T53, SIP-T53W, SIP-T54W, SIP-T57W, SIP-T58
EXP40 Applies to Yealink SIP-T46S, SIP-T46G, SIP-T48S, SIP-T48G

For more information on adjusting the backlight on the phone, refer to the Backlight section of

Yealink phone-specific user guide, available online:

http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage


Product Type
SIP-T58A , SIP-T57W , SIP-T54W , SIP-T53W , SIP-T48S , SIP-T46S , LCD Expansion Module EXP40 , Color-screen Expansion Module EXP50 , SIP-T48G , SIP-T46G
Version
ALL
200/200
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