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RXD-F3/F4/F41/F 4:
CIRCUIT DESCRIPTION
4. EXPANDER
p-COM
: NJU3718G
(X14 : IC2)
4.1 Pin connection
xc
oO
wo
5
A
(ep)
pe
I
>
(Bottom vie
_DISC2 GREEN _
DISC2 RED _
- DISC3GREEN
DISC3RED
CD LASER DIODE
MAIN SPEAKER RELAY( Ref.Note 6)
Key control/Pro Logic through SW
Selector TUNER LED RED
Selector TUNERLED GREEN
iw"
| Selector AUXLEDRED——t*™"
| Selector AUXLED GREEN
~ Selector TAPE LED RED
NO USE
——-
- DATA INPUT
CLOCK INPUT
STROBE INPUT _
_CLEAR INPUT
|
-—|-|-|O,O
O/O!O|O
| | Selector TAPE LED GREEN
"SelectorCDLEDRED
<p
mises
i
Vss
) | Selector CD LED RED
Center control key( Hf)
—
DISC1RED .
tia
DISC1GREEN
—
<7
Saeco
@ Note 6: This terminal controls all destination models of UD403 as a MAIN RELAY as well as the M/J type of UD423 as a
KEY CONTROL LED. As for other models, it is set at Low.
2
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