Troubleshooting; Problems In Powering Up The Printer - Tally Dascom 7010 Series Maintenance Manual

4-2. Troubleshooting

The following tables show possible remedies for various symptoms that might occur. Symptoms
are given in the left column, and the corresponding remedies in the right column.
Notes:
1. When parts are replaced, refer to Chapter 3 "Disassembly and Maintenance".
2. Connectors (J . . .) given in the column of checks and remedies are connected with the SA,
Main PCB. For the location of each connector, refer to

4-2-1. Problems in Powering Up the Printer

Symptoms
No power to the
printer
Checks
1. Is the Power Cord loosely connected to
the AC outlet or the AC inlet of the
printer?
2. Check voltage on the input power line.
Acceptable supply voltage:
100 to 240V (-10%+6%)
3. Is the fuse F1 on the Unit, Power
Supply blown?
4. Is the connector of SA, Power SW
Cable firmly connected to the Unit,
Power Supply (CN1)?
5. Is the SA, Power Cable firmly
connected between the Unit, Power
Supply and the SA, Main PCB (J11)?
6. Is the Ope-pane Cable connected
between the SA, Main PCB (J14) and
the SA, Ope-Panel PCB firmly? If it is
not connected or is inserted upside
down, no LED lights up and nothing
appears on the LCD even if you turned
ON the power.
7. Failure in the power supply circuit.
"4-2-7. Connector
1. Connect it firmly.
2. Supply correct voltage.
3. Replace with new fuse. If new fuse
is also blown when power is turned
on with the connector J11
disconnected from the SA, Main
PCB, the Unit, Power Supply is
faulty and must be replaced.
Notes:
- Do not replace the fuse with the
power switch turned on.
- The fuse is provided to prevent
fire, and damage to the Unit,
Power Supply. When replacing
it, use the same rating and type.
4. Connect it firmly.
5. Connect it firmly.
6. Connect it firmly.
7. Replace the Unit, Power Supply.
4-5
4-2. Troubleshooting
Location".
Remedies