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Emerson 20" Color Television 6420FE User Manual

Page 9

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3-2

L14STA

3. The flat pack-IC on the CBA is affixed with glue, so

be careful not to break or damage the foil of each
pin or the solder lands under the IC when remov-
ing it.

With Soldering Iron:

(1) Using desoldering braid, remove the solder from

all pins of the flat pack-IC. When you use solder
flux which is applied to all pins of the flat pack-IC,
you can remove it easily. (Fig. S-1-3)

(2) Lift each lead of the flat pack-IC upward one by

one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering ma-
chine.(Fig. S-1-4)

(3) 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)

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

zers. (Fig. S-1-6)

With Iron Wire:

(1) Using desoldering braid, remove the solder from

all pins of the flat pack-IC. When you use solder
flux which is applied to all pins of the flat pack-IC,
you can remove it easily. (Fig. S-1-3)

(2) Affix the wire to a workbench or solid mounting

point, as shown in Fig. S-1-5.

(3) While heating the pins using a fine tip soldering

iron or hot air blower, pull up the wire as the solder
melts so as to lift the IC leads from the CBA con-
tact pads as shown in Fig. S-1-5.

Fig. S-1-2

Hot-air
Flat Pack-IC
Desoldering
Machine

CBA

Flat Pack-IC

Tweezers

Masking
Tape

Fig. S-1-3

Flat Pack-IC

Desoldering Braid

Soldering Iron

Fig. S-1-4

Fine Tip
Soldering Iron

Sharp
Pin

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