Rear Panel; Troubleshooting; Maintenance - Bosch LTC 2810/91 Instruction Manual

LTC 2810/91 | Instruction Manual | Troubleshooting
3.2

Rear Panel

Rear Panel
1. AC/IN
2. Y/C IMPEDANCE
Switch
3. Y/C Connector
1. AC/IN
Input for power cord connected to electrical
outlet.
2. Y/C IMPEDANCE Switch
The Y/C IMPEDANCE switch selects
Y/C
the S-VIDEO impedance.
IMPEDANCE
HIGH 75
Set the switch to the 75Ω position
when only one monitor is used, or
when the monitor is used as the last
monitor in a chain.
Set to HIGH when another monitor is
connected to the Y/C OUT connector
for loop-through operation.
3. Y/C Connector
There are two MINI DIN type
Y/C
connectors for the Y/C IN (Input)
OUT
IN
/OUT (output) for looping through
to other video monitors.
Y/C PIN DESCRIPTION:
S-VIDEO (Separated Y/C signal IN/OUT)
PIN No.
4 3
1
2
3
2 1
4
Bosch Security Systems | December 06, 2004
4. AUDIO (IN/OUT)
Connector
5. VIDEO A/B (IN/OUT)
Connector
Description
GND
GND
Y Signal IN or OUT
C Signal IN or OUT
4. AUDIO Connector
There are two RCA phone type connectors for the
AUDIO IN (Input) / OUT (output) for looping
through to other video monitors.
NOTE: The AUDIO IN/OUT is not dependent
upon the VIDEO input.
5. VIDEO A/B (IN/OUT) Connector
There are four BNC connectors for the composite
VIDEO A/B inputs and outputs.
NOTE: The impedance is automatically set to 75Ω
by the input of a signal on the input connector
while operating in a single connection mode.
However, if a cable is connected to the output
connector, the connection is placed into the open
status by the multiple connection and high
impedance automatically selected.
CAUTION: Do not leave an unused cable
connected to the monitor. If a single cable is used,
it must be connected to the input connector for the
75Ω auto-termination selector to function properly.
4.0

TROUBLESHOOTING

PROBLEM CHECK
No Video 1. Verify power to all pieces of equipment.
2. Verify that the power switches are in the ON position.
3. Verify that the lens caps have been removed from the
lens or that the iris of the lens is open.
VIDEO, But No 1. Power down the monitor for one minute and then turn
Control the power back ON.
5.0

MAINTENANCE

Preventive maintenance allows detection and
correction of minor faults before they become serious
enough to cause equipment failure.
Every three months, perform the following:
1. Inspect all cabling for deterioration or other damage.
2. Clean the components with a damp, clean cloth.
3. Verify that all mounting hardware is secure.
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