1-4-3
DVD_NOTE
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 “
I
” 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.
Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by electro-
static charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1M
Ω
) that is prop-
erly grounded to remove any static electricity that may
be charged on the body.
2. Ground for Workbench
(4) Be sure to place a conductive sheet or copper plate
with proper grounding (1M
Ω
) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escape through the body ground-
ing band, be careful to avoid contacting semi-con-
ductors with your clothing.
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
CBA
< Incorrect >
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1M
Ω
1M
Ω
< Correct >
Summary of Contents for DD-4030
Page 23: ...1 8 3 1 8 4 1 8 5 E5640SCD1 DVD Main 1 4 Schematic Diagram ...
Page 24: ...DVD Main 2 4 Schematic Diagram 1 8 6 1 8 7 1 8 8 E5640SCD2 ...
Page 25: ...DVD Main 3 4 Schematic Diagram 1 8 9 1 8 10 1 8 11 E5640SCD3 ...
Page 27: ...AV 2 3 Schematic Diagram 1 8 15 1 8 16 E5640SCAV2 ...
Page 31: ...Function CBA Top View Function CBA Bottom View 1 8 23 1 8 24 BE5641F01021 ...
Page 39: ...1 15 2 E5640EX X10 X5 X2 X4 S2 S2 S4 Unit S1 A22 A30 A22 A30 X1 X31 S7 Packing ...
