Posts: 98
I have a wv98c and it looks like the meter is roached. Needle wont move. I applied a small voltage thru a pot and resistor and it wont move. Can the movement be taken apart?
(This post was last modified: 12-09-2024, 10:08 AM by
daveone23 .)
Posts: 16,507
Your power supply's ammeter is, obviously, coarse and might not see a small current.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 98
I balanced the movement. Micro surgery. Like working on a watch. While iam in the machine should i replace these brown caps?
https://www.dropbox.com/scl/fi/1lrg7d1dz...g39h7&dl=0
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Posts: 16,507
Think yes.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 98
To fix the movement properly you need to glue the magnet to the bracket. They used junkie glue from the factory.
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Posts: 98
So i put it back together, replaced the only electrolytic cap, the ohms feature works but on DC + volts, it pegs the meter to the right. Any thoughts?
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Posts: 16,507
Check the schematic.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 98
I will check out resistors R23, R27 and R28.
(This post was last modified: 11-08-2024, 09:54 AM by
daveone23 .)
Posts: 98
I only see one R23 resistor. The schematic shows two.
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Posts: 16,507
Can you put PDF of the sch here, or the link to it?
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 98
Here is the schematic
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Posts: 16,507
Are there any paper capacitors, or only disc ceramic ones?
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 98
Posts: 16,507
Can you highlight the circuit that is set by switches and leads when it measures DC volts?
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 98
Thats the hard part and what i need. .5 thru 15vdc i cant get the pot to zero the meter. Higher voltages are ok
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