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VREG_MSMP_2.7V
RA600
R606
10K
10K
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_COL(0)
KEY_ROW(4)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
VOL UP
KEY_ROW(2)
PRSB6.8C
VOL DN
KEY_ROW(1)
PRSB6.8C
CAM
KEY_ROW(0)
PRSB6.8C
SIDE_KEY_COL(5)
Figure Keypad Circuit
KEY
HOT601
HOT602
HOT603
1
2
3
1
2
3
4
5
6
4
5
6
7
8
9
7
8
9
HOT604
0
HOT605
HOT4
0
HOT5
SIDE_KEY
R600
100ohm
VA600
R602
100ohm
VA602
R605
100ohm
VA603
PRSB6.8C
VA604
- 53 -
3. TECHNICAL BRIEF
CLR
MENU
CLR
MENU
LEFT
UP
LEFT
UP
OK
RIGHT
OK
RIGHT
SND
SEARCH
SND
SEARCH
DN
BACK
DN
BACK
4
3
2
1
CN600
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Troubleshooting
