My friends please help. This HP R23 (DA0R23MB6D1). In PQ24 had burnt. EC2 and PC106 Capacitors were shorted. I replaced. Now no ACIN signal. Signal coming from PU9 IC, pin number 9, after passing from PR156 going low voltage. TO CHECK I removed PR156 And gave 3.3V supply. Then ok power on Display ok. PQ24 going heat. IF battery inserted charging voltage coming for a about 2-3 seconds only. Then not charging. I can't find why not coming ACIN signal and battery not charging continuously. Thanks