With it switched off test continuity from socket solder pins to speaker - just to make sure the pins are ok in the socket. Then you are on to those little transistors
Another thing to look at is - when the earphone is inserted into its socket it usually operates a mechanical switch to turn the speakers off.
I have known the switch in the earphone socket stick or break leaving the speakers off
when the earphones are removed.
Another thing to look at is - when the earphone is inserted into its socket it usually operates a mechanical switch to turn the speakers off.
I have known the switch in the earphone socket stick or break leaving the speakers off
when the earphones are removed.
I was aware of that and removed the small pcd the audio jacks were on that connected to the main board; it was connected by a ribbon cable which I removed but same issue.
With it switched off test continuity from socket solder pins to speaker - just to make sure the pins are ok in the socket. Then you are on to those little transistors
When continuity set on tester, I touched ground pin on charger and ground on speaker, top - after red, and I get a beep (Ref to the above picture). Touching the bottom-ground of speaker I get nothing.
When speaker is removed from socket, I only get continuity on red pin of speaker socket.
When continuity set on tester, I touched ground pin on charger and ground on speaker, top - after red, and I get a beep (Ref to the above picture). Touching the bottom-ground of speaker I get nothing.
When speaker is removed from socket, I only get continuity on red pin of speaker socket.
Sorry dont know what you are trying to do - I wanted you to test continuity from the 4 pins on the board ( left of the socket) to the wires where the join to the speakers. Are there 2 speakers one on red and black
one on white and black?
I wanted you to test continuity from the 4 pins on the board ( left of the socket) to the wires where the join to the speakers...
one on white and black?
I have tried another speaker and nothing. So I assume board issue; not speaker issue.
OK so using continuity try and trace backwards from the red wire pin
May be a doublesided board?
I am away for a couple of weeks so hopefully others will help.
OK so using continuity try and trace backwards from the red wire pin
May be a doublesided board?
I am away for a couple of weeks so hopefully others will help.
Thanks for the continued support. I'll see what I can find
Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer
stop using pc with that problem. disassemble completely the mainboard and 1° inspect for corrosion, burned component, 2° we can see schematics for other solution
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