Can you post the other side too?

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You don't have to backup all of your files, just the ones you want to keep.

Yep.

And what's the model number on the drive?

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You don't have to backup all of your files, just the ones you want to keep.

Seagate Lyrion
ST18.1
Model ST730212DE
SN 9SSOLZ4K
PN 9CR711-500

FW 3.01

This is from the datasheet... have you tried pins 1 & 2?

4.1Connector interface signals and connector pins
The following table summarizes the signals on the 40-way ZIF ATA interface connector.
Table 8: 40-way ZIF (IDE interface) connector signals
Pin number Signal Name Description
1 Reserved -
2 Reserved -
3 RESET- Hard Reset
4 GROUND Ground
5 DD07 Data bus bit 7
6 DD08 Data bus bit 8
7 DD06 Data bus bit 6
8 DD09 Data bus bit 9
9 DD05 Data bus bit 5
10 DD10 Data bus bit 10
11 DD04 Data bus bit 4
12 DD11 Data bus bit 11
13 DD03 Data bus bit 3
14 DD12 Data bus bit 12
15 DD02 Data bus bit 2
16 DD13 Data bus bit 13
17 DD01 Data bus bit 1
18 DD14 Data bus bit 14
19 DD00 Data bus bit 0
20 DD15 Data bus bit 15
21 GROUND Ground
22 DMARQ DMA request
23 GROUND Ground
24 DIOW- /
STOP
I/O Write to write to device registers or the data port
Stop during Ultra DMA burst
25 DIOR- /
HDMARDY- /
HSTROBE
I/O Read to read device registers or the data port
Flow control during Ultra DMA data-in burst
Data-out strobe signal for Ultra DMA data-out burst
26 GROUND Ground
27 IORDY /
DDMARDY- /
DSTROBE
I/O Channel Ready during register access
Flow control during Ultra DMA data-out burst
Data-in strobe signal for Ultra DMA data-in burst
28 GROUND Ground
29 DMACK- DMA Acknowledge
30 INTRQ Interrupt Request
31 DA01 Address bus bit 1
32 PDIAG- -
33 DA00 Address bus bit 0
34 DA02 Address bus bit 2
35 CS0- Chip Select 0
36 CS1- Chip Select 1
37 DASP- Used to drive external LED when drive is accessed
38 3.3V Voltage input
39 3.3V Voltage input
40 Reserved -

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You don't have to backup all of your files, just the ones you want to keep.

Actually i am not sure, this pcb have a serial terminal.

Anyway, if there is, i can measure or trace it out....
I suggest to try to measure the testpoints around the "seagate" logo, in the top left corner.
Maybe you can find it.

Please keep us informed.

Janos

Drccsc, I had seen that data sheet an I was wondering about pins 1 and 2 myself. I thought that the jumpers on the ide to zif adapter I have may have been connected to those pins but I cant be sure. I will have to try it directly. If that doesnt work ill try N.C. suggestion.

Well, pins 1 and 2 definitely lead somewhere. I can trace the circuit to a chip. Pin 40 seems to be the ground. I still cant test it because the pins 1 and 2 on the the adapter I have arent even connected. I have been looking online but I cant seem to find an adapter that has access to those pins.

Maybe Ill just try to separate the zif ribbon. That should be fun. Heh.

What about just using jumper wires from the pins to your terminal adapter, at least just for testing?

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You don't have to backup all of your files, just the ones you want to keep.

I'd turn a voltmeter to measure peak voltage then try pins 1 and 2 in turn, at least this way you're not going to fry anything...

Too late. For using the voltmeter anyway. One would think I would have learned my lesson after frying a $400 mobile touchscreen monitor a few years back but... guess not. At least in this case there was no harm done. At any rate, I think pin 2 is the rx lead. The Rx LED is lighting up when I turn on the hard drive. No luck on the Tx though. But im grounding it through the power supply. That might have something to do with it. These zif ribbon cables arent exactly the easiest things to work with.

Pins 38 and 39 are power inputs. Are both inputs always used? Im just asking because pin 39 isnt connected to anything either and if that would make a difference.

I'm confused. Can't you just touch a probe to the appropriate through hole on the PCB while having hyperterminal etc open to see if it spits anything out? I certainly shouldn't think the PCB would be able to fry a MAX232.

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You don't have to backup all of your files, just the ones you want to keep.

I was thinking more about blindly probing for Rx on the disk

Sure. I'd say start with receiving from the drive, and go from there.

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You don't have to backup all of your files, just the ones you want to keep.

Im not using hyperterminal. At home I have SD HD Doctor. And a friend of the family lets me play with his pc3k when Im in Chicago. They both have serial terminals with power, rx, and tx LEDs. When I connect the serial terminal to any seagate drives the rx led starts blinking. And it did when I connected pins 1 and 2. But I think there might be an issue with the hd doctor itself. I tried connecting two other seagate drives and I just get couple of beeps on those and the drive shuts down. I ordered an rs232 adapter and I will be trying with that. And I will be in Chicago this weekend so Im going to have a go with the pc3k.

Ok, here is what I get when I turn on the drive in cmd mode

PMstr

Comm - HMA0 - Sfi.
(3535-3544)LD00:00CE:4F89(+012 +073)0009:192A
Rdy
SK 8800,0
SPK
TTR1453
APM SK 3b8d,0
C54F64,*Bnk08...ok*
*Bnk01...ok*
ATspnDn 0,3
(3



When I switch pins 1 and 2 I get nothing.

Ah. Looks like good news and bad news then. Found the terminal, but who knows if its going to be of any use.

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You don't have to backup all of your files, just the ones you want to keep.

PMstr

Comm - HMA0 - Sfi.
(3536-3545)LD00:0099:501D(+010 +082)0009:1924
Rdy
SK 8800,0
SPK
TTR1485
APM SK 3cd9,0
C54F64,*Bnk08...ok*
*Bnk01...ok*
ATspnDn 0,2
(3

Thats from the second drive I have. But yeah. It would be something if I can just send commands to it. I just dont see seagates coming up with a whole new set of commands just for these drives alone. The firmware rev is from a plain seagate 20gb sata drive.

Have you tried Ctrl-Z etc?

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You don't have to backup all of your files, just the ones you want to keep.