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DESCRIPTI ON
Section 4
Functional
Jaguar Audio
4.3 PS130 Power Supply
The PS130 Power Supply is responsible for providing an unregulated
±8.5VDC @ 7.65A at a maximum power rating of 130 watts to the Jaguar
Frame. The PS130 Power Supply is designed to operate within output
specifications with AC line voltage ranges from 100 - 240 VAC and with
AC line frequency ranges from 47 - 63 Hz automatically. 3.15A 250VAC
AC line fuses provide over-load protection.
NOTE
There are no user serviceable parts contained in the PS130 Power Supply. All service
performed on the PS130 Power Supply should be accomplished by qualified service per-
sonnel. The internal circuits of the PS130 Power Supply contain dangerous voltage
and current levels.
4.4 Dual Reference Interface Card
The Dual Reference Interface Card is responsible for providing sync signals
to the Jaguar Audio Frame. The sync signals provided by the Dual Refer-
ence Interface Card can either be derived from composite sync or color
black signals or generated internally by the Dual Reference Interface Card.
The Dual Reference Interface Card's electronic circuits contain two com-
plete sync separating and generating networks (one is primary, the other
one is backup) which are discussed in the following manual sub-sections.
Please note the primary sync circuit operates until the output signal from
the card is lost, then the card switches to the backup circuit.
Primary
U15 provides regulated power, +5V, for the Dual Reference Interface
Card's matrix "A" electronic circuits. U1 and U3 (sync separators) along
with their associated components form the Dual Reference Interface's ma-
trix "A" sync separator network. U1 and U2 can separate the sync signal
from either composite sync or color black video signals. Once the sync sig-
nal is separated, it is provided to U7 (inverter) and to U9 (quad two-input or
gate). U7 and U9 along with U11 form a gating network that passes the ex-
ternal sync signal to the Jaguar Audio Frame when an external sync signal
is present.
If no external sync is supplied, the gating network will pass the internally
generated sync signal to the Jaguar Audio Frame. Also when the external
sync fails the gating network will illuminate the LED (CR10 or CR11) corre-
sponding to the failed sync signal. U5 working in conjunction with U12 gen-
erate the matrix "A" internal sync signal.
