Schematic Diagram Of H3 And H4 Boards - Sony KDE42XBR950 Service Manual

(5) Schematic Diagram of H3 and H4 Boards

1 3
2
A
S9702 S9704 S9706 S9708 S9710
MENU LEFT UP DOWN RIGHT
B
R9702 R9704 R9706 R9708 R9710
15k 4.7k 2.2k 1k 680
1/10W 1/10W 1/10W 1/10W 1/10W
:RN-CP :RN-CP :RN-CP :RN-CP :RN-CP
H3
(KEY)
C
B-SS4393<UC.>-H3.
D
E
3
1 2
A
S9701 S9703 S9705 S9707
PIC OFF SELECT VOL UP CH DW
B
R9701 R9703 R9705 R9707
# 4.7k 2.2k 1k
1/10W 1/10W 1/10W
:RN-CP :RN-CP :RN-CP
S9713
ILINK
C
CN9704
2P
WHT
:1.5DL
KEY3 1
R9712
GND 2
470
1/10W
TO H3 BOARD
:RN-CP
CN9705
D
E
4
H3
[P-SWITCH]
— H3 BOARD —
CN9705
S9712
ENTER
CN9705
2P
WHT
:1.5DL
1 KEY3
2 GND
TO H4 BOARD
CN9704
4
5
H4
[KEY INPUT]
— H4 BOARD —
S9709 S9711
CH UP VOL DW
CN9707
C9701
3P
#
WHT
:1.5DL
1 KEY1
R9709 R9711
2 KEY2
680 470
1/10W 1/10W
3 GND
:RN-CP :RN-CP
TO M(5/5)BOARD
CN4401( 1 - 3 )
C9702
#
H4
(KEY)
B-SS4393<UC.>-H4.
<COMPONENT SIDE>
CN9704 CN9707
<COMPONENT SIDE>
R9702
R9704
R9708
<CONDUCTOR SIDE>
R9703
R9705 R9707 R9709
R9711
<CONDUCTOR SIDE>
KDE42XBR950/KDE50XBR950 (UC) 3-38