TurboChef 2020 Service Manual

36 TROUBLESHOOTING
Is the keypad cable properly connected
to the contr
ol boar
d?
T
r
oubleshooting:
No Keypad I
nput
R
eplace the keypad (page A-8).
If the problem persists, or if beeps occur when
buttons ar
e pressed but commands do not regis-
ter on the display
, replace the control board
(page A-8).
Corr
ect wiring.
YES
NO
Troubleshooting:
No Displa
y - Screen is Blank
Does the keypad beep when a
key is pressed?
Replace the fuses (page A-7).
Corr
ect wiring.
I
f cable is damaged,
r
eplace it.
R
eplace the power
supply (page A-8).
Replace the I/O con-
trol board (page A-8).
Check wiring from the
power supply to the control
boar
d. Correct wiring if
necessar
y (pages 37-40).
Verify 5 VDC is present
on pin 1 of the J3
connector (page 39). I
f
not, replace the control
boar
d (page A-8).
I
s the contr
ol board
r
eceiving corr
ect VDC
(pages 37-40)?
Is the power supply
output 24 VDC?
Is the 24 VDC power
supply receiving
po
wer?
R
eplace the display and
ribbon cable.
(page A-8)
Is 5 VDC present on pin 1 of
the J3 connector? (page 39)
Is wiring from the
control board to
the display
(including the
ribbon cable) OK?
YES
NO
NO
NO
YES
YES
YES
NO
NO
YES
YES
NO

TurboChef 2020 Specifications

General

Dimensions (H x W x D)	25 in x 28.8 in x 26.3 in (635 mm x 732 mm x 668 mm)
Weight	270 lb (122 kg)
Power	208/240V, 60 Hz, 1-phase
Wattage	6200 W
Temperature Range	200°F–500°F (93°C–260°C)
Cavity Dimensions (H x W x D)	10.5 in x 16 in x 15 in (267 mm x 406 mm x 381 mm)
Cavity Volume	1.5 cu ft (42.5 liters)
Cooking Modes	Microwave, Convection, Impingement
Turbo Speed Cooking	Yes
Pre-Programmed Settings	Yes
Exterior Dimensions	25 in x 28.8 in x 26.3 in (635 mm x 732 mm x 668 mm)
Interior Dimensions	10.5 in x 16 in x 15 in (267 mm x 406 mm x 381 mm)
Category	Rapid Cook Oven