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Old 10-29-2020, 04:41 AM   #1
jophuttenhuis
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Default HP Envy Recline 23 Schematic - DA0NZ8MB6F0 REV F

Hi there,

HP Envy Recline 23 doesn't power up anymore.
Power supply LED turns of directly after hooking up the plug into the base socket.

During last usage the back side, top right (near mobo, heatpipes) was really hot.
Fan was full of dust.

Disconnected all peripheral connectors (HDD, speakers, HDMI-out, audio, WLAN, etc), only the DCIN cable and FAN cable connected, the power-supply LED still goes out after plugging in the plug into the base.

Hope you guys have a schematic of motherboard DA0NZ8MB6F0 REV F.

Or any other suggestion?
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Old 10-29-2020, 05:22 AM   #2
jophuttenhuis
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Default Re: HP Envy Recline 23 Schematic - DA0NZ8MB6F0 REV F

Supplying power to DCIN (PJ1) + on pin1, GND on pin8.
Power supply is limiting current to 1A @ 3.7V

Thermal inspection shows PQ17 (Marking: 4439GM, 40232G) heats up really quickly.
PQ17 seems to be a MOSFET.

PQ17 (top side) is close to PU19 (bottom side, marking: AS393M-G1)
Seems to be: Low Power Low Offset Voltage Dual Comparator.
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Old 11-09-2020, 01:49 AM   #3
jophuttenhuis
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Default Re: HP Envy Recline 23 Schematic - DA0NZ8MB6F0 REV F

Is there maybe someone who knows a board which has a similar design?
Or someone who has a similar problem?
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