Hi
Hope I can ask question about this laptop too?
I got this HP PRESARIO CQ61 and it wont power up, no noise no nothing.
Only the power jack light stays on, when plugged it (wont run on battery either) No other lights are present.
I taken it apart and kind of trying to find out where the power is stooping
I am not an electronic engineer but willing to go the extra mile and try to learn out of this, maybe someone be willing to help ... ??
I found this diagram
but not sure if it is the right one ??? the laptop is an AMD processor.
I checked the power at CN3 slot and the voltage correct:
2 red cables get 19.47V
checked the PC20 the tiny capacitors (i believe it is) and it gets 19.47V
checked the PC14 and it gets 19.47V
checked PD1 and PR6 and both get 19.47V
also checked C24 and there I get 0.01V on either side.
so, not sure where else to check ... or why that capacitor is not working.
I flipped the motherboard to the other side, a just about the same area
where I was taken the previous measurement, there are 2 MOS FETS (i think) close to the RAM slots. so I checked the followings:
PQ45 - 85U03GH
Drain to Source (beeping sound) and goes from 233 down to 0.01
Drain to Gate (no sound) stays 1
PD17 - PS996 SD840S
Pin3 to Pin2 shows 182 (in VOLTS shows 0.23)
whereas Pin2 to Pin3 (beeping noise) and shows -147 (in Volts it shows -0.20)
Pin 1 to Pin 3 = 0.01V
Pin3 to Pin1 = 0.01V
Please advise further .... and sorry about this, I am new to all this
Hope I can ask question about this laptop too?
I got this HP PRESARIO CQ61 and it wont power up, no noise no nothing.
Only the power jack light stays on, when plugged it (wont run on battery either) No other lights are present.
I taken it apart and kind of trying to find out where the power is stooping
I am not an electronic engineer but willing to go the extra mile and try to learn out of this, maybe someone be willing to help ... ??
I found this diagram
but not sure if it is the right one ??? the laptop is an AMD processor.
I checked the power at CN3 slot and the voltage correct:
2 red cables get 19.47V
checked the PC20 the tiny capacitors (i believe it is) and it gets 19.47V
checked the PC14 and it gets 19.47V
checked PD1 and PR6 and both get 19.47V
also checked C24 and there I get 0.01V on either side.
so, not sure where else to check ... or why that capacitor is not working.
I flipped the motherboard to the other side, a just about the same area
where I was taken the previous measurement, there are 2 MOS FETS (i think) close to the RAM slots. so I checked the followings:
PQ45 - 85U03GH
Drain to Source (beeping sound) and goes from 233 down to 0.01
Drain to Gate (no sound) stays 1
PD17 - PS996 SD840S
Pin3 to Pin2 shows 182 (in VOLTS shows 0.23)
whereas Pin2 to Pin3 (beeping noise) and shows -147 (in Volts it shows -0.20)
Pin 1 to Pin 3 = 0.01V
Pin3 to Pin1 = 0.01V
Please advise further .... and sorry about this, I am new to all this
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