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sucker
the area for along time.
It may
otherwise cause removal of the
print foil.
e When shifting the pin upward, do
the job quickly while the solder is
melting.
If the solder is hard, it
may cause removal or breakage of
the print foil.
e
When using a pencil type solder-
ing iron.
1. Completely remove the solder
from each IC pin by use of solder
sucker.
2. Raise each pin by means of an
eyeleteer, hold the pliers then
remove IC package from P.C.B.
Melt the solder on the pin (one elec-
trode) with the soldering iron.
While the solder is melting, shift
the pin upward by the soldering iron
to remove it from the foil.
Remove each pin from the foil
according to the above-mentioned
procedure.
* Special soldering iron
(Refer to Technical Information, ORDER
NO. GAD84125486T1)...For U.S.A. and Canada
(Refer to Technical Information, ORDER
NO. GAD84115476T8)...For others
°eH—605
Spot Heater (hot-air solder iron)
This device that uses hot air to melt solder was developed to remove Flat-Package ICs, RHCs and chip parts.
eH—130
Slim Pencil Solder tron
An ultrasmall ceramic heater solder iron is extremely
handy for soldering chip parts, RHCs, ICs etc., to high-
density circuit boards.
Features:
¢Rated power:
100V, 15W
® Max. temp.:
400°C
° Heater:
ceramic (long life)
e insulation resistance:
100MQ
eLength:
178mm
Weight:
16g (not including cord)
eH—131, H—V13
Cap Bits
Solder tip for the slim pencil Solder Iron is composed
of a bit holder and a corrosion resistance solder tip.
Permits changing of solder tips even while still hot.
¢ Solder tip:
0.3mm
Mi FUNCTION OF IC TERMINALS
e 1C901 (UPD1718G514) PLL controller
IN'oUuT
| MARK |
DESCRIPTION OF TERMINAL
1~4
OUTPUT
LCD4~LCD1
Segment signal output for LCD display
OUTPUT
Common of LCD.
2.5V
Smsec.
INPUT
Power supply terminal.
INPUT
|
FM
Input for FM OSC output frequency divided to 1/32 or 1/33 by pre-scaler.
Sey
522kHz
1629 kHz
|
GND
| Ground terminal.
Not used in this unit.
ae
ae
Error output of PLL.
12
OUTPUT
The frequency is output as a result of comparison between crystal
frequency and FM or AM (MW/LW) station frequency.
Power supply detection.
INPUT
CE
H—4V,L-0V
| output
[|
= x1
| Connecting terminal for crystal oscillator.
INPUT
=
The crystal connected is at 4.5MHz.
Station detection.
1. Signal received — H (5V)
2. NO signal
—>L (OV)
Remote control input terminal.
INPUT
REMOTE
Power supply connecting.
OUTPUT
"H" output in FM mode.
Forcible
monaural
selection.
~
"H" input with it connected to home-use power outlet socket.
-_
7
INPUT
sD
4.8V
OV
Forcible monaural mode
OUTPUT
FM MONO
Input terminal for key return signal
i494
INEST
nee
from external key matrix.
PB3~PBO
OUTPUT
PC3~PC1
OUTPUT
MUTE
25~2:
Output terminal for key source
8
signal data.
29~31
This is the output terminal to eliminate shock noise due to unlocking
1. Pin 13(CE)isL->HorH—-L.
4. FMIF selection.
at PLL.
al Sao
5.0V
2. Power switch "'off"'.
ov
INPUT
Power supply terminal.
<Muting output >
3. Frequency change. (up/down, FM<«>AM)
Muting output operation
34~52
OUTPUT
LCD23~LCD5
| Segment signal output for LCD display.
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