Sharp LC-55LE643U_FPTW Service Manual page 89

5
Tommy 20120327
KeyPad Order Change
Power MENU Input CH+ CH- VOL+ VOL-
20120816
+5VSB
Change 0402 to 0603
D
R1 2K_F
R20 NC/1K
C
R19
R7 2K4 R8
CH+
1 3
B
R18
SW3
CH+ NC/1K
4 2
240
255
R22 NC/0
R23 0
A
ON Board Key pad
5
4
Vincent 20120926
Change 0603 to 0402
R2 2K_F R3 2K_F
POWER MENU INPUT
1 3 1 3 1
SW1 SW2
POWER MENU
4 2 4 2 4
240 176 112
255 191 159
每階中心值
每階臨界值
NC/2K_F
2K_F R9 2K_F R10
CH- VOL+
1 3 1 3 1
SW4 SW5
CH- VOL+
4 2 4 2 4
176 112
191 159 95
ADIN1
ADIN2
4
3
R4 1K
3
SW7
INPUT
2
ADIN1
95 R6
C2 NC/47K
0.01uF/16V
+5VSB
R21 NC/2K_F
2K_F
R11 1K
VOL-
3
SW6
VOL-
2
ADIN2
48
R13
31
C3 NC/47K
0.01uF/16V
3
2
Change J1 from 1.25mm 5pin to 2.0mm 4pin
+5VSB
ADIN-1
ADIN-2
C1
1uF/16V
0603C
ADIN1 R5 0
ADIN2 R15 NC/0 ADIN-1
ADIN1 R16 NC/0 ADIN-2
ADIN2 R12 0
Add R15 R16 R18 R19 R20 R21 R22 R23 For E550i-A0
V1 V2
1 2 1
SCREW SCREW
CIR80-50 CIR80-50
2
1
J1
1
2
3
D
4
1R25_1X4ML
C
2
B
A
1