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1-4-3
DVDN_SN
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
contact pads as shown in Fig. S-1-5.
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
tweezers. (Fig. S-1-6)
Note:
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.
2. Installation
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
presolder 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.
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8
Summary of Contents for ZC352MW8
Page 1: ...SERVICE MANUAL DVD RECORDER ZC352MW8...
Page 27: ...1 10 4 AV 2 4 Schematic Diagram E7C50SCAV2...
Page 28: ...1 10 5 E7C50SCAV3 AV 3 4 Schematic Diagram...
Page 29: ...1 10 6 E7C50SCAV4 AV 4 4 Schematic Diagram...
Page 31: ...1 10 8 SW Schematic Diagram E7C50SCSW...
Page 37: ...1 10 14 DTV Module 1 2 Schematic Diagram E7C50SCDTV1...
Page 38: ...1 10 15 DTV Module 2 2 Schematic Diagram E7C50SCDTV2...
Page 39: ...1 10 16 AV CBA Top View BE7C50F01011A...
Page 43: ...1 10 20 BE7C50F01011C SW CBA Top View SW CBA Bottom View...