Merrychef eikon
®
e2s service and repair manual
31
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3 Technical data
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Description
Features
Function
Rating
Trouble shooting
Check Live supply
potential at heater
terminals
Check Error Log for
E102 & E116 events
Magnetron(s)
One Magnetron fitted
as standard, two
Magnetrons fitted to
High Power oven
versions
Provides microwave
energy, 0 to 100%,
through the
waveguide(s) into the
oven cavity for
accelerated cooking.
At 50% power the
microwave circuit
cycles 20 seconds on /
20 seconds off
1000W per magnetron,
7-8A at 230VDC. See HV
Components in Section
5.8 for further rating
information. (NOT TO
BE TESTED LIVE)
Follow all test
procedures in Section
5.8.
Check for opens, shorts
& grounds.
Check SRB connections
X4a, X102b, X102a.
Check SRB LED
Check Error Log for
E101 & 113 events
HV Transformer(s)
One HV Transformer
fitted as standard, two
HV Transformers fitted
to High Power oven
versions, wired out of
phase with each other.
Provides both the
stepped down and
stepped up Voltages
for the for the
Magnetron(s)
Primary winding: 200 /
230 VAC. Secondary
winding to Magnetron
Filament = ELV, and
approximately 1:10
stepped up High
Voltage for microwave
circuit (NOT TO BE
TESTED LIVE).
See HV Components in
Section 5.8 for further
rating information.
*(208 / 240 VAC see note
2)
Follow all test
procedures in Section
5.8.
Check for opens, shorts
& grounds
Check SRB connections
X4a, X102b, X102a.
Check SRB LED
Check Error Log for
E101 & E113 events
HV Capacitor(s)
One HV Capacitor fitted
as standard, two HV
Capacitors fitted to
High Power oven
versions.
Internal discharge
resistor.
In conjunction with the
HV Diode(s) to double
the stepped up voltage
from the HV
Transformer(s)
2,500 VAC, 1.20
µ
F
±
3%.
See HV Components in
Section 5.8 for further
rating information
(NOT TO BE TESTED
LIVE)
*(0.95
µ
F & 1.0
µ
F see
note 3)
Follow all test
procedures in Section
5.8
Check for opens, shorts
& grounds
Check SRB connections
X4a, X102b, X102a.
Check SRB LED
Check Error Log for
E101 & 113 events
HV Diode(s)
One HV Diode fitted as
standard, two HV
Diodes fitted to High
Power oven versions.
In conjunction with the
HV Transformer(s) to
double the stepped up
voltage from the HV
Transformer(s), for the
Magnetron DC supply
See HV Components in
Section 5.8 for further
rating information
(NOT TO BE TESTED
LIVE)
16kV, 750mA (up to
50A surge)
-20
o
C to +135
o
C
Follow all test
procedures in Section
5.8
Check for opens, shorts
& grounds
Check SRB connections
X4a, X102b, X102a.
Check SRB LED
Check Error Log for
E101 & 113 events
Thermocouple
Provides DCmV to the
Smart Relay Board
(SRB) that represents
the cavity temperature
Two dis-similar metals
connected at the tip
that produce different
repeatable millivolts
while exposed to
different temperatures.
See chart below for
reference
E111 error when open
circuit fault exists.
Check resistance for
open probe.
Check DC voltage
between wires. Use
chart based on
25°c(77°F) ambient
