Hitachi UT42X902/D8MW Service Manual page 81

Schematic Diagram page 27 /28
MENU
/SELECT
S806
KSS6N23CTJ
GND3
GND3
• Since this is a basic circuit diagram, the value of the parts is subject to be altered for improvement.
TABLE OF CONTENTS
3
INPUT VOL_DOWN
/EXIT /
S805 S804
KSS6N23CTJ KSS6N23CTJ
R801
4.7k
1 2
4
5
VOL_UP CH_DOWN
/ /
S803 S802
KSS6N23CTJ KSS6N23CTJ
R802 R803
2.7k 1.5k
1 2 1 2
80
6 7
CH_UP
/ RESET
S801 S807
KSS6N23CTJ KSS6N23CTJ
GND3
R804
1.0k
1 2
TERMINAL BOARD SHEET: 008
D8MW
A
B
C
P801
501568-04H
1
ADKEY1
2
ADKEY2
R814
0
1 2 3
USRRST
D
4
GND
G1
G2
GND3
E
F
Control keys