Icom IC-PW1 Service Manual page 17

• SWR detector circuit adjustment
FRONT
SIDE
MAIN UNIT
• Tuner basis voltage adjustment
FRONT
SIDE
MAIN UNIT
J18
Connect J5 on the tuner unit
of IC-736 to here
MAIN unit of IC-PW1
S5
Tuner basis voltage pre-setting
R15
R6
R4
SWR detector
R5
pre-setting
R22
S3
S4
C73
SWR detector circuit adjustment
FRONT
SIDE
FILTER UNIT
CP1
4 - 5
MAIN unit
Filter unit
J5
Disconnect J5 from here
Bottom view of IC-736