KX-DT390RU - Panasonic PBX Service Manual (repair manual). Page 5

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5
KX-DT390RU/KX-DT390RU-B
3 Specifications
Design and specifications are subject to change without notice.
4 Technical Descriptions
4.1.
Block Diagram
CN:
TEL Jack
Dimensions:
Low Angle:
214 (D)mm [Operate] 
× 160 (W)mm × 101 (H)mm
(8-7/16” 
× 6-5/16” ×3-31/32”)
High Angle:
195 (D)mm [Operate] 
× 160 (W)mm × 172 (H)mm
(7-11/16” 
× 6-5/16” ×6-25/32”)
Weight:
640g 
KX-DT390
RU
 / KX-DT390
RU
-B  : MAIN BOARD BLOCK DIAGRAM
L23-0
C
0
-4-1
C
0
-4-2
CO
 K
e
y
 6
0
+3
.3
V
GN
D
CP
U  I
C
1
C
2
C
B
Y
Y
000649  
64pin
MA
IN
 P
C
B
C
O
 LE
D
 60x
2
LE
D
's
dr
iv
er
 22
PO
W
E
R
IC
2
D1
T1
Q1
To
 P
B
X
F
las
h R
O
M
48k
By
te
RA
M
2.
5k
By
te
KEY
IN
11-0
KEY
OU
T
4
-0
Q2
DINT
Port
17
34
X
1
  20.
00M
H
z
JK
1
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