1-3-3
NOTE_1
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
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 cloth-
ing will not escape through the body grounding band,
be careful to avoid contacting semi-conductors 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 >
Содержание 25A-664
Страница 22: ...1 8 3 1 8 4 1 8 5 HC4S4SCM1 Main 1 5 Schematic Diagram ...
Страница 23: ...1 8 6 1 8 7 1 8 8 HC4S4SCM2 Main 2 5 Schematic Diagram ...
Страница 24: ...1 8 9 1 8 10 1 8 11 HC4S4SCM3 Main 3 5 Schematic Diagram ...
Страница 26: ...Main 5 5 Schematic Diagram 1 8 15 1 8 16 HC4S4SCM5 ...
Страница 27: ...VPS Schematic Diagram 1 8 17 1 8 18 HC4S4SCV ...
Страница 28: ...1 8 19 1 8 20 HC4S4SCF Function Schematic Diagram ...
Страница 29: ...AFV Schematic Diagram 1 8 21 1 8 22 HC4S4SCAFV ...
Страница 30: ...Jack Schematic Diagram 1 8 23 1 8 24 HC4S4SCJ ...
Страница 31: ...1 8 25 1 8 26 Function CBA Top View Function CBA Bottom View BHC400F01018 B ...
Страница 33: ...1 8 29 1 8 30 Jack CBA Top View Jack CBA Bottom View BHC400F01018 E ...
Страница 54: ...2 4 6 U25PALDA S 12 19 Cap Belt Fig DM11 Fig DM12 20 C 1 21 ...
Страница 60: ...3 1 1 HC4C0FEX A1X EXPLODED VIEWS Front Panel ...
Страница 62: ...3 1 3 HC4S4PEX Some Ref Numbers are not in sequence X2 X20C X3 X20B X20A X1 X4 S1 Unit S3 S2 S2 A14 Packing ...
Страница 81: ...25A 664 HC4S4ED ...