Manitowoc Merrychef eikon e2s - SRB; QTS Circuit Boards

13 Circuit boards and diagrams
eikon e2s Service and Repair Manual UL 186
13.1 SRB / QTS circuit boards
SRB LEDs
 P-Bus – irregular flashing, indicating data communication with QTS.
 Run – Pulsing 1 second flash, indicating that the board has booted up.
 12V and 5V – lit to show voltage outputs from inboard transformer.
 Relay and Triac – lit to show that a signal has been sent to energise that component.
Item
Name
1
Cooling fan
2
Convection fan
3
Stirrer
4
5V supply
5
12V supply
6
Heater safety
7
Heater drive
8
P
-Bus: flashes when data is being
sent / received.
RUN: 1 second flash.
9
Oven door
10
Microwave safety relay
11
Microwave 2 drive
12
Microwave 1 drive
13
LED (lit to show that a signal is
received via overheat trips).
If lit it is ok.