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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.10.6 Keypad Light
There are 8 Blue LEDs in Main key backlight circuit, which are driven by KYDB_BACKLIGHT line from
PM6650.
3.10.7 LCD Module (NM200CM2 : Tovis)
- The NM200CM2 module has Main LCD and Sub LCD.
Main LCD has a 2.0 inch diagonally measured active display area with 176(RGB)X220 resolution.
each pixel is divided into Red, Green and Blue sub-pixels and dots which are arranged in vertical
stripes.
Sub LCD has a 0.98 inch diagonally measured active display area with 96(mono)X64 resolution.
* Features
- Display mode(Main LCD) : Normally White, Transmissive TFT 265K colors.
(Sub LCD) : Normally Black, Transmissive Mono STN.
- 16 bit CPU interface Parallel
KYBD_BACKLIGHT
+VPWR
REV_B : EDLH0013501 --> EDLH0006001
KEY_BACK_LIGHT LED(10EA)
LEBB-S14H
LD402
100ohm
R418
100ohm
R423
R420
100ohm
LD403
LEBB-S14H
LEBB-S14H
LD401
LD409
LEBB-S14H
R426
100ohm
LEBB-S14H
LD405
LEBB-S14H
LD406
VA412
EVL14K02200
100ohm
R417
LD400
LEBB-S14H
LD407
LEBB-S14H
100ohm
R422
R425 100ohm
R419 100ohm
R421
100ohm
LEBB-S14H
LD408
100ohm
R424
LEBB-S14H
LD404
Figure. Schematic of KEY back light circuit ( KEY side )
Summary of Contents for U370
Page 1: ...Date January 2008 Issue 1 0 Service Manual Model U370 Service Manual U370 ...
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