50
DVR-700/NS-PSW700/NS-P700
D
VR-70
0/
NS-PSW70
0/NS-P70
0
Key Input(A-D) Pull-Up Resistance 10 k-Ohms
Ohm
0
+ 1.2k
+ 1.2k
+ 12.7k
+ 5.3k
+ 2.7k
V
0 – 0.1
0.3 – 0.7
0.8 – 1.7
1.8 – 2.7
2.8 – 3.2
3.3 – 3.6
A/D value
0 – 14
15 – 38
39 – 89
90 – 141
142 – 166
167 – 184
KEY1 (41 pin)
—
—
STOP
INPUT
—
PAUSE
Ohm
0
+ 680
+ 680
+ 15k
+ 13.5k
V
0 – 0.2
0.2 – 0.4
0.5 – 1.8
1.9 – 3.4
3.5 – 4.0
A/D value
0 – 8
10 – 20
24 – 94
95 – 175
176 – 206
KEY0 (39 pin)
—
EJECT
PLAY
VOLUME UP
VOLUME DOWN
Detection for AD port: KEY0 (39 pin of sub-microprocessor IC303 of OPERATION P.C.B.)
KEY1 (41 pin of sub-microprocessor IC303 of OPERATION P.C.B.)
K Y 0 : 2 5 5 K Y 1 : 2 5 5
3 : 1 1 3 1 P 2 : 0 6 2
7-6
KY0: / KY1:
KY0 / KY1:
Panel key of this unit. (without “STANDBY/ON” key)
When the A/D conversion value of the panel key becomes out of the specified range, normal
operation will not be available.
In that case, check the constant of voltage dividing resistor, solder condition, etc. with referring to the
table below.
(Reference voltage: 5.0 V=255)
7-5
3: / 1P2:
3:
Power supply voltage +3.3D (for digital circuit)
Normal value:
86 to 141
(Reference voltage: 5.0 V=255)
Detection for AD port: PRV_3.3
(136 pin of main microprocessor IC500 of MAIN P.C.B.)
1P2:
Power supply voltage +1.2D (for DSP IC)
Normal value:
42 to 81 (Reference voltage: 5.0 V=255)
Detection for AD port: PRV_1.2
(137 pin of main microprocessor IC500 of MAIN P.C.B.)
