Read Panasonic UB-8325 Service Manual online
4
UB-8325
1 General Precaution
1.1.
Safety Precaution
1. Before servicing, unplug the power cord to prevent electrical shock hazard.
2. When replacing parts, use only manufacture’s recommended components for safety.
3. Check the condition of power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, perform the following electrical tests to prevent shock hazard.
2. When replacing parts, use only manufacture’s recommended components for safety.
3. Check the condition of power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, perform the following electrical tests to prevent shock hazard.
1.2.
Electrical Test
1. Unplug the power cord and check for continuity between the earth ground connection on the plug and the metal cabinet.
There should be zero ohm resistance found.
2. With the unit unplugged, short the AC Live-Neutral of the plug with a jumper wire.
3. Turn ON the power switch.
4. Measure the resistance value with an ohmmeter between the shorted AC plug and each exposed metal cabinet part, such as
3. Turn ON the power switch.
4. Measure the resistance value with an ohmmeter between the shorted AC plug and each exposed metal cabinet part, such as
screwhead, etc.
Note:
Note:
Some exposed parts may be isolated from the chassis by design. They read infinity.
5. If the measurement is less than 1 M
Ω
, a possibility for electric shock may exit.
Note:
This hazardous condition must be corrected before the unit is returned to the end user.
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