Takagi T-K3 Service Manual page 28

10-16. Tran sfo rm er
T-K3 Part #
-To transform input voltage from 120VAC to 100VAC.
Function -Every electrical component of the T-K3 is designed to only work with a 100VAC
power supply, therefore, the T-K3 comes equipped with this transformer.
1. There is no power coming from the transformer.
Failure event
2. The voltage from the power supply cannot be converted to 100VAC.
1. The T-K3 does not operate due to lack of power from transformer.
Effects on the T-K3
2. A failed transformer can cause electrical damage to other electrical components
if transformer fails
within the T-K3.
Error codes when
transformer.
1. Visual inspection: connection/breakage of wires and/or signs of electrical
Diagnostic damage.
2. Check voltages of the transformer: Proper range of values shown below.
White -Black
Color/Number of
wires
Brown-Brown
From the 120 VAC
power supply
#702 Takagi Part #
120VAC / less than 1Ω
100VAC / less than 1Ω
To power the computer
board and heaters
(100VAC)
5 - 7 / 8 " ( 1 5 0 m m )
5 - 7 / 8 " ( 1 5 0 m m )
28
EKH09 Checkpoint
N/A
3 - 3 / 4 " ( 9 4 m m )
CONFIDENTIAL
T-K3 Servi c e Manual
Ver. 1.05
A1, A2
2 - 3 / 8 " ( 6 1 m m )