Table For Protection Circuit Actions; Appearance And Dimensions - Toa IP-300D Operating Instructions Manual

12. TABLE FOR PROTECTION CIRCUIT ACTIONS

Symptom
Excessive current flow
Current limiter operates
due to overload
when load resistance is
under 2.5
PARALLEL) or 5
(BTL).
Short circuit (under 0.5 )
Current limiter operates.
Speaker loads cut by
output relay.
Heat sink temperature rise
Speaker loads cut by
output relay.
Unusual DC voltage output
Speaker loads cut by
output relay.

13. APPEARANCE AND DIMENSIONS

Action Indicator
Peak indicator lights.
(STEREO/
Protection circuit
indicator lights.
Protection circuit
indicator lights.
Protection circuit
indicator lights.
Remedy Reset
Remove overload. Automatically reset if 4
(STEREO/PARALLEL) or
8 (BTL) load is
connected.
Check short circuit of Switch power off, connect
speakers and lines. correct load, and switch
power on.
Check ventilation and Automatically reset if
overload. temperature drops.
Switch power off, then
Contact your TOA
dealer. remove cause.
Unit: mm
11