According Schematic Page 2, VIN and S5_ON generates 4 Power signals[B] +3VPCU , +3VS5 , +5VPCU and +5VS5[/B]
those voltage all Presents well
also ,there is NO CLK_24M_KBC
if NO 24M Clock to EC causes NO SUSON signal from EC, that make sense
anyone can tell is SUSON depends on EC firmware?
also CLKRUN# alwasy LOW, which means EC didn't work!According Schematic Page 2, VIN and S5_ON generates 4 Power signals[B] +3VPCU , +3VS5 , +5VPCU and +5VS5[/B]
those voltage all Presents well
also ,there is NO CLK_24M_KBC
yihuilin
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Last Activity: 04-06-2025, 06:51 PM
Joined: 08-18-2019
Location: brooklyn
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Delted [HR][/HR]
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According Schematic Page 2,[COLOR=#e74c3c][SIZE=16px] VIN[/SIZE][/COLOR] and [COLOR=#e74c3c][SIZE=16px]S5_ON[/SIZE][/COLOR] generates 4 Power signals[SIZE=20px][COLOR=#e74c3c][B] +3VPCU , +3VS5 , +5VPCU and +5VS5 [/B][/COLOR][/SIZE]
[SIZE=14px]those voltage all Presents well[/SIZE]According Schematic Page 2,[COLOR=#e74c3c][SIZE=16px] VIN[/SIZE][/COLOR] and [COLOR=#e74c3c][SIZE=16px]S5_ON[/SIZE][/COLOR] generates 4 Power signals[SIZE=20px][COLOR=#e74c3c][B] +3VPCU , +3VS5 , +5VPCU and +5VS5 [/B][/COLOR][/SIZE]
[SIZE=14px]those voltage all Presents well[/SIZE]AccordingLeave a comment:
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- [LIST]
- DSWROK_EC 0v
- RSMRST# 3v3
- EC_RTC_RESET YES, from Low -> HIGH
- RCT Crystal YES , WAVE Good, 33K[/LIST]
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I forget AC Adapter in Company this weekend, i use battery tested again
With batter installed, before I pressed the Power Button, i got some voltage
VIN 12V88
+3VPCU 3V39
+BAT_RTC 3V21
after Pressed Power Button
[SIZE=28px] EC ITE_5570[/SIZE]
S5_ON 3V3 when Power LED On
+3VL_EC 3V3
+3VL_ECACC 3V3
+1.8V_DEEP_SUS 1V8 when Power LED On Resistance Good
SLP_S3# 0V Resistance Good
SLP_S4# 0V Resistance Good
i believe the CPU not even reached to S4 Level, still...Leave a comment:
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I don't have other ram ,but this laptop have two rams , and I removed both ram to test, dont need a ram presents before BIOS warning i believe
the problem is now the laptop even dont have a speaker Warning or Caps Lock Bilinking warning , or even the CPU Fan doen't run...Leave a comment:
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my Solder skills are pretty good, use NeoProgrammer to read and write and verify BIOS Chip working good, no issue...Leave a comment:
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HP 15-dy0013dx doesn't Power On, Power LED Bilinking, needs help for trouble shooting
Hello Every Genuis
I have a laptop from my friend, model is "HP 15-dy0013dx" , Logic Board model is DA00P5MB6D0 REV
MODEL: 0P5
this Laptop come with a BIOS Warning issue, the Keyboard CAPS LED Blinking 3 times slow, 2 times fast , don't remember exactly, someting like this, has a Meaning , also Fan will run
but I googled, people says this Meaning EC have a issue to read BIOS, so I use CHA314A programmer to read and write (wrote the same content file read from BIOS), after I flashed the BIOS, the CAPS LED doesn't blink anymore
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Hello Everyone
I came from America New York City
my hobby is repairing Electronics, including Smart Phones, Laptop, Mac, Smart TV etc...
and I also doing Embedded / C / Linux Programming a little bit
I know this forum becasue I searched google for some kind of schematic, this site gives me help, don't need to be a member to download attachements, Amazing
Nice to mee you all guys!Leave a comment:
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Re: need board view for Apple A1278
Do you have 820-2330A brd and sch?...Leave a comment:
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