Yamaha DME4io-ES Service Manual page 50

DME4io-ES/DME8i-ES/DME8o-ES
[Test Jig]
q GPI Loop Back Test Jig
Pin location
GPI-JIG Parts List
REF NO. PART NO.
R91–R94 RD356220
D91–D94 VS201100
RY91–RY94 VU685600
TR91–TR94 VV556400
CN91 WG261000
w REMOTE Loop Back Test Jig
Use a D-SUB 9P female connector with terminals that are short-circuited as shown below.
Fig. 2: Circuit Diagram for COM Terminal Connection Jig for RS232C/422 Loop Back Test
50
Fig. 1: GPI Loop Back Test Jig Circuit Diagram
DESCRIPTION
Carbon Resistor (chip) 2.2K 63M J RECT.
Diode D1F60 1A 600V TP
Relay DC NA–5 W–K
Transistor 2SC2412K Q,R,S TP
Terminal 16P ME030–35016
5
9
D-SUB 9P
Q'ty
4
4
4
4
1
4 3 2 1
8 7 6
female connector