DV-NC100H (serv.man7). Complete - Sharp DVD Service Manual (repair manual). Page 9

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DVD_NOTE2

(4) Bottom of the flat pack-IC is fixed with glue to the

CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)

(5) Release the flat pack-IC from the CBA using twee-

zers. (Fig. S-1-6)

When using a soldering iron, care must be taken to
ensure that the flat pack-IC is not being held by glue.
When the flat pack-IC is removed from the CBA,
handle it gently because it may be damaged if force
is applied.

To Solid 
Mounting Point

Soldering Iron

Iron Wire

or

Hot Air Blower

Fine Tip
Soldeing Iron

CBA

Flat Pack-IC

Tweezers

(1) Using desoldering braid, remove the solder from the

foil of each pin of the flat pack-IC on the CBA so you
can install a replacement flat pack-IC more easily.

(2) The “ ” mark on the flat pack-IC indicates pin 1. (See

Fig. S-1-7.) Be sure this mark matches the 1 on the
PCB when positioning for installation. Then presol-
der the four corners of the flat  pack-IC. (See Fig. S-
1-8.)

(3) Solder all pins of the flat pack-IC. Be sure that none

of the pins have solder bridges.

Example :

Pin 1 of the Flat Pack-IC
is indicated by a " 

  

 " mark.

Presolder

CBA

Flat Pack-IC