LG 50PA6500-SA (CHASSIS:PB21A) Service Manual ▷ View online
GP2R, LM1Training Manual
Table of contents
1. PCB layout.
2. GP2R vs LM1
3. GP2R. (Block, Power, I2C)
4. LM1. (Block, Power, I2C)
5. LM1 SOC Power sequence.
6. Memory test.
7. Pen touch overview.
1. PCB Layout.
GP2R (206 x 183)
LM1 (206 x 141.5)
※ LM1 use internal EDID&HDCP. (LM1 is Removing the EEPROM for EDID&HDCP)
LM1 is optimizing Power block. (LM1 is reducing DC/DC, LDO, power application)
2. GP2R vs GP4 LM1.
Difference
GP2R 50PZ550
LM1 50PA6500
Changes
PDP Module
R3(FHD)
R4(FHD)
New module. 50R4 Initial model.
Tool
PZ Tool
PA Tool
12’ years New tool.
VSC
PCB
206x183
206x141.5
change PCB Size. (smaller than GP2R.)
Main IC
S7R
S7LR
Jack Layout
Slim Depth
Slim Depth
Same.
Sub Assy
PZ Tool
PA Tool
GP2R 15pin, LM1 8pin
PSU
50R3 XP5 B’d
50R4 UP1 B’d
Reduce power on time.
SW
GP2R LM1
PDP only
code.
JIG
GP2R
LM1
Support DFT JIG.
-
.
.
Develop new WAFER and CABLE. (12 years)
Power Wafer
18P
18P
Stand by 0.3W ↓
Stand by 3.5V
O
O
Stand by 3.5V .
12V_secondary
X
X
Not use 12V.
IR Wafer
15P
8P
LM1 not support 3D.
USB
O
O
SIDE USB.
Memory
DDR3
DDR3
DDR3 1Gbit . 2ea
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