A SERVICE OF

logo

19
APPENDIX A
Access and Configuration
Internal Access
1. Remove six screws from the back cover (see Figure 9).
2. Remove the top cover.
This provides access to all internal adjustments.
3. For option card installation, slide the circuit board out toward the back to remove it from the bottom cover.
FIGURE 9. Location of screws for disassembly.
FIGURE 10. Locations of internal controls
AUX
J4B
J3B
J2B
J1B
J1A
J2A
J3A
J4A
AUX
4 WIRE SYSTEM 4 WIRE SYSTEM
2 WIRE SYSTEM
Telex Communications, Inc., Made in U.S.A.
RTN
+5V
RTN
+15V -15V
-15V 0.3A
+15V 1.6A
+5V 3A
J5 POWER