SERVICE MANUAL
Document No
Date of Origin
Date of REV
51-L-DSR004
98-10-21
PAGE REV.
0
PAGE
18 /102
S-00-005(96.03.27)
REV.1
4-10.
A/V OUTPUT
4-10-1.
Video
After the output of the video encoder
(STV0119)
it is buffered
to
be output for the SCART and UHF modulator.
4-10-2.
Audio
After the output of the OPAMP it is buffered
to be output for the
SCART and RCA jack and UHF modulator.
4-10-3.
scart - TV output
:
composite
video, R, G, B, audio(L,R)
VCR output
:
composite
video, audio(L,R)
4-10-4.
phono out audio
: Left audio (white),
Right audio (red),
RF modulator
(mono)
Video Output Impedance
is 75
§Ù
and the connector
is scart type. In Play mode,
VCR signal is routed automatically
so TV viewing
is possible.
4-11.
RF Mod u l a t o r
RF modulator
is PAL I PLL type and it can select CH21 ~ CH69. Output impedance
is
75
§Ù
, connector
is EIA type, and pre set channel
is CH68. When an external
device
output is connected
to terrestrial
in port, TV viewing
is possible
by the signal
coming from RF out1 and 2. RF out2 serves as RCU's input signal port. Instead
of
using front IR, it can be used RCU remote signal controlled
by an accessory
box
which means that STB's functions
like channel
changing
and volume can be
controlled
by remote control.
4-11-1.
RF input
4-11-1-1.
frequency
range
:
47 - 862 MHz
4-11-1-2.
input impedance
:
75
§Ù
4-11-1-3.
RF bypass gain
:
5 dB
¡¾
2 dB
4-11-1-4.
isolation
:
>20 dB
4-11-2.
RF output
4-11-2-1.
frequency
range
:
47 - 862 MHz
4-11-2-2.
output impedance
:
75
§Ù
4-11-2-3.
modulator
output range
:
471 - 862 MHz (ch21 - 69)
