Service manual

Keyboard Circuit
1 2 3 4 5 6 7 8 9 10
G
D
C
B
E
F
A
6-22
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENTS DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL COMPONENTS WITH “M” IN THE DESIGNATOR
ARE A SURFACE MOUNTED COMPONENT.
3828VD0171E
FCS 48 SERIES SHEET 22
+ 5 V
SB
+ 5 V
SB
+ 5 V
SB
+ 5 V
SB
+ 5 V
SB
1
2
3
4
5
C N2 K 5
3 8 7 - A 0 5 B
1
2
3
4
5
C N6 K 2
3 8 7 - A 0 5 E
R5
10 K
R6
10 K
R7
1K
R8
1K
R9
1K
R10
1K
R11
1K
R12
1K
R13
1K
R14
1K
R15
1K
R16
1K
1
SW2
14 0 - 3 15 A
1
2
SW3
14 0 - 3 15 A
1
2
SW4
14 0 - 3 15 A
SW5
14 0 - 3 15 A
SW6
14 0 - 3 15 A
SW7
14 0 - 3 15 A
UP
VOLUME C HA NNEL
UP
VOLUME
TO MA IN PC B
MENU
C LOSED
C A PTION
DOWN
TO IR- LED- P OWER P C B
C HA NNEL
DOWN
SHT. 6-10
SHT. 6-23