Service Overview; Board Location; Unleaded Solder; Removing/Installing The Cabinet - Sony SuperExwave IPELA SNC-CS50N Service Manual

1-1. Board Location

CT-240 board
SY-337 board
Switching
regulator
B1-193 board

1-2. Unleaded Solder

Boards requiring use of unleaded solder are printed with a
lead free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come
printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
m
. Be sure to use the unleaded solder for the printed circuit
board printed with the lead free mark.
. The unleaded solder melts at a temperature about 40 dC
higher than the ordinary solder, therefore, it is recom-
mended to use the soldering iron having a temperature
regulator.
. The ordinary soldering iron can be used but the iron tip
has to be applied to the solder joint for a slightly longer
time. The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful.
SNC-CS50N/CS50P
Section 1

Service Overview

PR-291 board

1-3. Removing/Installing the Cabinet

n
Tighten the following screw to the tightening torque as
shown below.
Tightening torque:
BSW M2 x 5: 0.2 ±0.02 N.m

1-3-1. Lower Cover

Removal
1. Remove the rear cover in the direction shown by the
arrow.
2. Remove the four screws, then remove the lower cover.
BSW
M2 x 5
Lower cover
Installation
3. Attach the lower case in the reverse order of steps 1
and 2.
Rear cover
BSW
M2 x 5
1-1 (E)