Yamaha YSP-4100 Service Manual page 66

YSP-4100/YSP-5100
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Ohm
V
A/D value (3.3V=255)
KEY1 (133 pin)
KEY1 (134 pin)
Model detection for AD port
Ohm (R677)
Ohm (R678)
V
A/D value (3.3V=255)
MODEL (127 pin)
Destination detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Ohm (R648)
V
A/D value (3.3V=255)
DEST (139 pin)
66
0 + 1.2k
0 – 0.1 0.2 – 0.5
0 – 7 8 – 40
VOLUME + VOLUME –
INPUT –
10 k 10 k
– 27 k
3.3 0.8 – 1.2
255 62 – 95
YSP-4100 CRX-140
10 k 24 k
0 – 1.9 2.0 – 2.4
0 – 154 155 – 192
T, A, L K, V
39 k 91 k
2.5 – 2.8 2.9 – 3.1
193 – 215 219 – 244
U, C B, G
91 k
3.2 – 3.3
245 – 255
J