Fishing bite alarm drains battery

[Mcfeetroy]

Good day to all. The bite alarm drains 9-volt Krona batteries. Current consumption when switched on is about 50 mA. I wiped the board from oxides, I will attach a photo (on the board there is a j3y transistor and a 7533 stabilizer, the microcircuit is erased = (the 3.3-volt stabilizer heats up weakly. I replaced it, nothing changed. I unsoldered the microcircuit, the consumption disappeared. The resistance on the pins of the unsoldered microcircuit from the point clockwise is more than 2 megaohms, the 11th leg is presumably ground. I warmed up the microcircuit, the consumption does not change. Voltage in standby mode - pin 1-0
2-0
3-0
4-3.3 volts
5-0
6-2.3 volts
7-3.3 volts
8-0
9-0
10-0
11-0
12-3.3 volts
13-0
14-0
when it beeps
1-2.2 volts
2-2.6 volts
3-2.1 volts
4-3.3 volts
5-2.8 volts
6-2.3 volts
7-3.3 volts
8-0
9-2.1 volts
10-3.3 volts
11-0
12-3.3 volts
13-0
14-2.1 volts
please help me what kind of microcircuit is this to replace

fex.net/uk/s/zcdvo28

[Mcfeetroy]

photo

[CapLeaker]

Put a 2S LiPo in or 6 x AA(A) and you got all kinda of power. Hardly anybody makes anything that uses a 9V block anymore, besides smoke detectors and gas alarm. Even garage remotes use a CR2025 and a smaller controller.
The only thing you didn’t check are the MLCC. For a 10 Bucks fish alarm it’s not worth friggin around with too much.