Connectors - Thermador SMW 272 B Service Manual

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Lower O ven Section
W ire H arness
A ribbon connector is used to connect the touch
control board to the display head. The ribbon has
eighteen carbon traces (conductors) that transfer
the signals from control board connector P1 to
display head connector J 3 (see the illustration). The
number four (# 4) trace is not used.
O ne end of the ribbon connector has an indexed
edge so that it can be inserted into the touch
control board socket P1 only one way.
The other end of the ribbon connector that goes to
the display head has no markings and is not indexed.
This end will be connected properly as long as the
ribbon connector is not reversed or twisted. If it is,
F7
an error will appear on the display.
CON N ECTORS J 1 & P2
P2
1 2 3 4
Touch Control
Female Connector
Touch Control
Male Connector
1 2 3 4
LOGIC
CON N ECTORS
Upper Oven
Relay Board
4 3 2 1
J1
Pins 1, 2 = 12 vdc
Pins 3, 4 = 20 vac
J1
4 3 2 1
Display Head
P1
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
To Touch Control Board
Connector P1
Connector J3
On Display Head
Page 65
SMW O ven Service Manual
No Pin
@ #4
Indexed End
Trace #1
W ire H arness
Trace #1
This End
Mark On Board