Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
Z60t no power
Z60t no power
Got a Z60t here that is not getting any power. Symptoms are: Power LED does not light when AC adapter is connected. Power button does not turn on computer. AC adapter output is 20V (nominal), and I have tried other known good AC adapters. The battery is dead and I don't have an external charger to see if the Z60t will run on battery power.
My guess is a blown fuse somewhere. The couple fuses I've found on the system planar are shorted (good) but there are many more that I have not been able to find. Does anyone have a diagram of where all the fuses are located?
Any idea or suggestions on what to check next?
My guess is a blown fuse somewhere. The couple fuses I've found on the system planar are shorted (good) but there are many more that I have not been able to find. Does anyone have a diagram of where all the fuses are located?
Any idea or suggestions on what to check next?
-
- Admin
- Posts: 10327
- Joined: Sun Jun 04, 2006 1:26 am
- Location: San Jose, CA 95120 USA
- Contact:
Re: Z60t no power
The usual recommendations when dealing with a non-power-up situation would be the following:
- verify that the AC adapter is delivering 16V (older systems) or 20V DC or use a known good adapter, which you have done
- try powering up with only the battery; the DC jack and/or the main fuse may be damaged
- try powering up with only the AC adapter (battery removed)
- try powering up with all of the hardware (except for memory) removed; this means the hard drive, Ultrabay device, MiniPCI card, etc.
- the fuses on the motherboard are identified by "F" numbers; F1, F3, F11, etc. Typical surface mount fuses for the main power look like this: http://www.kawakami-ca.com/images/t22_main_fuses.jpg The one on the left (clear plastic looking with "FU" marked on top and denoted by the "F2" printed on the motherboard) protects the DC input on T2x motherboards. The one on the right (white ceramic with metal endcaps, with "F11" printed next to it) is the type which protects the battery and Ultrabay.
- look for burnt components on the motherboard. The usual suspects are MOSFETs such as "Q16" in this picture: http://www.kawakami-ca.com/ibm_t2x//let.jpg
- verify that the AC adapter is delivering 16V (older systems) or 20V DC or use a known good adapter, which you have done
- try powering up with only the battery; the DC jack and/or the main fuse may be damaged
- try powering up with only the AC adapter (battery removed)
- try powering up with all of the hardware (except for memory) removed; this means the hard drive, Ultrabay device, MiniPCI card, etc.
- the fuses on the motherboard are identified by "F" numbers; F1, F3, F11, etc. Typical surface mount fuses for the main power look like this: http://www.kawakami-ca.com/images/t22_main_fuses.jpg The one on the left (clear plastic looking with "FU" marked on top and denoted by the "F2" printed on the motherboard) protects the DC input on T2x motherboards. The one on the right (white ceramic with metal endcaps, with "F11" printed next to it) is the type which protects the battery and Ultrabay.
- look for burnt components on the motherboard. The usual suspects are MOSFETs such as "Q16" in this picture: http://www.kawakami-ca.com/ibm_t2x//let.jpg
Ray Kawakami
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
Re: Z60t no power
My Thinkpad Z60T just died today. It does not power ON anymore. The case gets very hot at the front botton RHS, just behind the SD connector. Power OFF current is 2A. I disassembled the laptop: on the motherboard, chip U41 is burned wide open, with a V-shaped gouge about 5mmx2mm and 1mm deep in the top; it is burning hot when power is applied. This chip is a large gull-wing surface mount marked "F21618TE110V H8S/2161BV V0516 BD05170" with a sticker BV19. It looks like an IBM custom chip. It seems that all the current -even when the Z60T is OFF- is diverted to the shorted chip, heting it up and preventing startup. Too bad it died: I really liked that Z60T
-
- Admin
- Posts: 10327
- Joined: Sun Jun 04, 2006 1:26 am
- Location: San Jose, CA 95120 USA
- Contact:
Re: Z60t no power
@vince88 Welcome to thinkpads.com!
I believe that the part you describe is the H8S; the hardware controller chip, aka, Embedded Controller, made by Renesas:
http://www.renesas.com/products/mpumcu/h8s/index.jsp
If that chip has a crater, you basically have to replace the entire motherboard.
I believe that the part you describe is the H8S; the hardware controller chip, aka, Embedded Controller, made by Renesas:
http://www.renesas.com/products/mpumcu/h8s/index.jsp
If that chip has a crater, you basically have to replace the entire motherboard.
Ray Kawakami
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
X22 X24 X31 X41 X41T X60 X60s X61 X61s X200 X200s X300 X301 Z60m Z61t Z61p 560 560Z 600 600E 600X T21 T22 T23 T41 T60p T410 T420 T520 W500 W520 R50 A21p A22p A31 A31p
NOTE: All links to PC-Doctor software hosted by me are dead. Files removed 8/28/12 by manufacturer's demand.
Re: Z60t no power
if you go this route, z60t (and z61t) motherboards can probably be found pretty cheap on ebay. I found a z61t with a cracked LCD a while ago for around $30 with shipping. the motherboard was fully functional and is now in a z60t.rkawakami wrote:If that chip has a crater, you basically have to replace the entire motherboard.
W500 - T9600 | FireGL V5700 | 8GB DDR3 | Momentus XT 500GB | WUXGA | 7 Ult
X200 Tablet, Surface Pro 128GB w/ Touch Cover
X200 Tablet, Surface Pro 128GB w/ Touch Cover
-
- Similar Topics
- Replies
- Views
- Last post
-
-
ThinkPad T530 Very little power, Will not power on
by ThinkPad560X » Sun Mar 10, 2024 12:42 am » in ThinkPad T430-T490 / T530-T590 Series - 2 Replies
- 369 Views
-
Last post by ThinkPad560X
Sun Mar 10, 2024 12:57 pm
-
-
-
T42 Charges and works with the battery in but without battery will not power on.
by kale87 » Fri Oct 27, 2023 3:39 pm » in ThinkPad T40/T41/T42/T43 Series - 0 Replies
- 3172 Views
-
Last post by kale87
Fri Oct 27, 2023 3:39 pm
-
-
-
ThinkPad T460 refuses to stay on after power button is pressed
by Fropple! » Fri Dec 08, 2023 1:31 am » in ThinkPad T430-T490 / T530-T590 Series - 0 Replies
- 7536 Views
-
Last post by Fropple!
Fri Dec 08, 2023 1:31 am
-
-
-
P14s Losing Power When OFF
by tenplus1 » Sat Dec 16, 2023 5:22 am » in ThinkPad P1/P40/P50/P70 and later Series - 7 Replies
- 1942 Views
-
Last post by tenplus1
Fri Jan 05, 2024 6:42 am
-
Who is online
Users browsing this forum: No registered users and 22 guests