Panasonic TOUGHBOOK CF-52AJYZDZM Service Manual page 38

9.2.3. Setting the SERIAL PCB
1. Set the SERIAL PCB to the computer.
2. Fix the SERIAL PCB using the two Screws <N1>. No1, No.2
3. Tighten the Hex Spacer to the SERIAL PCB. No.3
Screw <N1> : DFHE5035ZB
9.2.4. Setting the Heat Sink Ass'y
1. Set the Fan Duct to the Heat Sink Ass'y.
2. Fix the Heat Sink Ass'y to the MAIN PCB using the four Screws <K138>. No.1 to No.4
Screw <K138> : DRHM0119ZAT
Hex spacer
:No.3
<N1>
:No.2
<N1>
:No.1
:No.3
<K138>
:No.2
:No.4
Fan duct
9-15
SERIAL PCB
:No.1
<K138>
Heat sink
ass'y