Got charging problem, model Acer Aspire ES1-572-304Z B5W1S LA-D671P Rev.: 1.0
Symptoms: Won't turn on if battery is connected or SWG1 switch pushed.
Got laptop without battery and not turning on at all. Found bad EC chip (ENE KB9022QD) and replaced from donor. Reprobramed EC firmware and Main bios firmware.
Got from OEM supplier new battery AC14B8K (4ICP5/57/80) 15.2V , tested with battery analyzer and charged till 30%.
Now it turns on, but only from adapter. Not if battery conected or SWG1 switch pressed.
So far replaced PU301 (from BQ24735 to BQ25A), PQ304, PQ305, PQ306.
Please any advice.
My measurements:
Charger BQ25A PU301
Charger only | Bat only | On Batery SWG1 pressed | AC+Battery+SWG1
1 ACN.... 19.5 | 0.12 | 15.13 | 19.55
2 ACP..... 19.5 | 0.12 | 15.13 | 19.53
3 CMSRC 19.4 | 0.00 | 0.00 | 19.53
4 ACDRV. 25.3 | 0.00 | 0.00 | 25.5
5 AC IN.... 3.1 | 0.00 | 0.00 | 3.20
6 ACDET... 2.6 | 0.00 | 0.00 | 2.65
7 IOUT.... 0.00 | 0.00 | 0.00 | 0.00
8 EC DA1 0.00 | 0.00 | 3.26 | 3.26
9 EC CK1 0.00 | 0.00 | 3.26 | 3.26
10 ILIM... 0.00 | 0.00 | 0.77 | 0.77
11 BATDRV 2.14 | 0.0 | 21.1 | 15.12
12 SRN... 1.11 | 0.00 | 15.3 | 15.13
13 SRP.... 1.11 | 0.01 | 15.3 | 15.13
14 GND... 0.00 | 0.00 | 0.00 | 0.00
15 DL CHG 0.00 | 0.00 | 0.00 | 0.00
16 REGN.. 5.98 | 0.00 | 0.00 | 5.98
17 BST..... 5.77 | 0.00 | 14.86 | 14.86
18 DH CHG 1.11 | 0.00 | 15.13 | 15.13
19 LX....... 1.11 | 0.01 | 15.13 | 15.13
20 VCC.... 19.24 | 0.09 | 14.93 | 19.24
Battery conector BTY1
Charger only|Bat only | On Batery SWG1 pressed | AC+Battery+SWG1
1 GND 0.00
2 GND 0.00
3 EC DA1-1 3.27| 0.00 | 3.26 | 3.26
4 EC CK1-1 3.27| 0.00 | 3.26 | 3.26
5 BATT TS.. 3.20 | 0.30 | 0.15 | 0.15
6 BAT B\I... 2.98 | 0.02 | 0.00 | 0.00
7 BTT+...... 3.10 | 0.00 | 15.13 | 15.13
8 BTT+...... 3.10 | 0.00 | 15.13 | 15.13
Symptoms: Won't turn on if battery is connected or SWG1 switch pushed.
Got laptop without battery and not turning on at all. Found bad EC chip (ENE KB9022QD) and replaced from donor. Reprobramed EC firmware and Main bios firmware.
Got from OEM supplier new battery AC14B8K (4ICP5/57/80) 15.2V , tested with battery analyzer and charged till 30%.
Now it turns on, but only from adapter. Not if battery conected or SWG1 switch pressed.
So far replaced PU301 (from BQ24735 to BQ25A), PQ304, PQ305, PQ306.
Please any advice.
My measurements:
Charger BQ25A PU301
Charger only | Bat only | On Batery SWG1 pressed | AC+Battery+SWG1
1 ACN.... 19.5 | 0.12 | 15.13 | 19.55
2 ACP..... 19.5 | 0.12 | 15.13 | 19.53
3 CMSRC 19.4 | 0.00 | 0.00 | 19.53
4 ACDRV. 25.3 | 0.00 | 0.00 | 25.5
5 AC IN.... 3.1 | 0.00 | 0.00 | 3.20
6 ACDET... 2.6 | 0.00 | 0.00 | 2.65
7 IOUT.... 0.00 | 0.00 | 0.00 | 0.00
8 EC DA1 0.00 | 0.00 | 3.26 | 3.26
9 EC CK1 0.00 | 0.00 | 3.26 | 3.26
10 ILIM... 0.00 | 0.00 | 0.77 | 0.77
11 BATDRV 2.14 | 0.0 | 21.1 | 15.12
12 SRN... 1.11 | 0.00 | 15.3 | 15.13
13 SRP.... 1.11 | 0.01 | 15.3 | 15.13
14 GND... 0.00 | 0.00 | 0.00 | 0.00
15 DL CHG 0.00 | 0.00 | 0.00 | 0.00
16 REGN.. 5.98 | 0.00 | 0.00 | 5.98
17 BST..... 5.77 | 0.00 | 14.86 | 14.86
18 DH CHG 1.11 | 0.00 | 15.13 | 15.13
19 LX....... 1.11 | 0.01 | 15.13 | 15.13
20 VCC.... 19.24 | 0.09 | 14.93 | 19.24
Battery conector BTY1
Charger only|Bat only | On Batery SWG1 pressed | AC+Battery+SWG1
1 GND 0.00
2 GND 0.00
3 EC DA1-1 3.27| 0.00 | 3.26 | 3.26
4 EC CK1-1 3.27| 0.00 | 3.26 | 3.26
5 BATT TS.. 3.20 | 0.30 | 0.15 | 0.15
6 BAT B\I... 2.98 | 0.02 | 0.00 | 0.00
7 BTT+...... 3.10 | 0.00 | 15.13 | 15.13
8 BTT+...... 3.10 | 0.00 | 15.13 | 15.13
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