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4-10. PRINTED WIRING BOARD – BASE KEY Board –
1
2
BASE KEY BOARD
A
RED
SP1
BLK
B
C
D
B
I-TAD
UNIT
(Page 36)
E
F
G
SPARE
H
BATTERY
CHARGE
I
D11, 12
D10, S20
MUTUNG
J
1
05
3
Q2
Q1
B C E
E C B
Q3
E C B
S1
REC/MEMO
16
S2
ERASE
1
S6
S7
TIME/SET
SELECT
1
5
S11
REPEAT/
SLOW
D7
S15
HOLD
D9
D10
S20
S18
D11
J2
5
10
15
A
BASE MAIN BOARD
(Page 36)
4
5
C2
D2
9
(
MESSAGE
)
COUNTER
D3, S3
8
ANSWER
ON/OFF
S3
S8
MENU
S4
–
VOLUME
10
15
20
22
J1
D4
S9
D4, S9
MAIL BOX
3
S10
D5, S10
D5
MAIL BOX
2
S13
D6
D6, S13
MAIL BOX
1
D8
S17
S16
CONF
D11, S18
S19
LINE1
D12
D12, S19
TALK
LINE2
SPEAKERPHONE
20
22
– 43 –
• Semiconductor
6
Location
Ref. No.
D1
D2
D3
16
9
D4
D5
U1
D6
1
8
D7
D8
D1
D9
NEW CALL
D10
D11
D12
Q1
Q2
Q3
U1
D3
S5
+
S12
SKIP/
QUICK
S14
FLASH
D8, S17
INTERCOM
S21
OFF
35-4453-04-
00
Location
B-6
C-4
D-6
E-3
F-5
G-5
H-2
H-5
I-2
I-2
J-4
J-5
B-3
B-4
B-4
B-6
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