1) What if the Blue ESR meter shows ‘00′ when we check capacitors, does it mean short or very good capacitor.
2) I’ve proven to myself that the meter isn’t effective caps in circuit. Better check it out of circuit.
If your meter cable is too long then it will give you the “00″ result. Make sure the each cable is 30cm long and i found that the esr meter is very good in testing e-cap on board.
3) What is the function of ‘memory’ capacitor and how does it work. I don’t remember if you had mentioned about it in your ‘Testinf E components’ book.
Could you explain this because i have not come across a cap meter that have memory?
4) HP1925 LCD monitor power LED is there but no display. I found few caps popped up in the P supply area and replaced them but no change. 17 volts and less that 5 volts available at the connector to the main board. One polyester film cap found to have high ESR. Replacing that too didn’t solve the problem. Back light lamps seem good. From the beginning I notice very low light appears on for less than a second and the monitor goes to stand by mode. It’s puzzling to me. Please give a clue.
When it already shutdown does the supply voltage to the inverter IC still present? If not suspect a bad mainboard (assuming the mainboard is getting all the correct voltages).
2) I’ve proven to myself that the meter isn’t effective caps in circuit. Better check it out of circuit.
If your meter cable is too long then it will give you the “00″ result. Make sure the each cable is 30cm long and i found that the esr meter is very good in testing e-cap on board.
3) What is the function of ‘memory’ capacitor and how does it work. I don’t remember if you had mentioned about it in your ‘Testinf E components’ book.
Could you explain this because i have not come across a cap meter that have memory?
4) HP1925 LCD monitor power LED is there but no display. I found few caps popped up in the P supply area and replaced them but no change. 17 volts and less that 5 volts available at the connector to the main board. One polyester film cap found to have high ESR. Replacing that too didn’t solve the problem. Back light lamps seem good. From the beginning I notice very low light appears on for less than a second and the monitor goes to stand by mode. It’s puzzling to me. Please give a clue.
When it already shutdown does the supply voltage to the inverter IC still present? If not suspect a bad mainboard (assuming the mainboard is getting all the correct voltages).
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