Develop Bugs

Maintenance manual for universal? or may fluffcat1 help me?

I think that i have read somewhere on the internet about maintenance manual for universal, may anyone has it or its link?
If no, how to disassemble my universal, the LCD coaxial cable is damaged, and i cannot hear the sound from the side speakers (the media files or ringtones) hear only the sound of call from the ear speakers on the screen side. I have read a thread before from fluffcat1, he said that he knows how to disassembe univresal and also how to repair the cable if the damage is minor which may be true in my case. Please help me, the new cable is too expensive in my country. Thank you very much in advance.

37 views aND ABOUT 3 DAYS WITHOUT ANY REPLY, I HOPE FLUFFCAT1 WAS NOT AMONG THOSE VIEWERS.
Anyway, this is my experience, may it beneifit anyone here. I decided to open my Univ. downloaded the service manual from the internet and dollowed the steps to tear it down. I didn't completely dissassembIe it, I found that a main part of the cable exposed after removing the base of the device, I fixed that part wirh a piece of paper, and i think the device is working good now, except for sporadic call drops. Do u think that this drop is attributed to the cable, or as I think it is a separate issue?

Hi,
Have a look at ftp....
You can also dl it on the site where I'm moderator...
Here the link...http://www.planete-htc.com/index.php?mod=forum&ac=voir&cat=81&id=4293
Have fun
Bonisalive from planete-htc.com

O2 XDA -----> XDA2 Connector Difference???

Hi all, hoping somebody can tell me if here is a difference in the connectors at the bottom of these 2 phones??? The reason I ask is because I have come into possession of a Professional GPS Carkit for a XDA2 whic I have modified cosmeticly to accomodate the XDA. All parts other than sound and microphone are working. I would appreciate any guidance some of those in the know would be forthcoming with.........I have put my phone back to standard with the rom etc to be sure the upgrading of it had no adverse affect, so it is exactly as I bought it now, and still doesn't work properly

Check the wiki for the connector pinouts to confirm they are the same. They only device using a slightly different 22 pin connector is the blueangel with two ridges in the sleeve.
Richard

my xda1 got stolen and i could use both the cradle (xda1 cradle is soooo much better then xda2's)
and charger connector (of cause)
and headset

ok......a little progress nowhere really but, anyone got ideas on this........I pulled the control panel apart on the car kit, i have found that if i put the phone in the cradle whilst on a call and the sound comes through the speaker when it beeps to say it is in the cradle???? Upon checking it further, the control panel clicks, i presume that it 'opens' the connection to the speaker, but will close the connection and not reopen it if i make a call from the cradle tus rendering the speaker an the mic inoperative. I have found that the 'car on' wire appears to go through a resistor once on the board so could this be cutting down the input too much for the signal from an xad1??? Anyone with some technical knowledge on this would be really helpful. Thanks in advance

adapter for sound *in*?

Hi all!
For sound out, there are adapters (I already have one), which convert from that custom 2.5" jack to a standard 3.5" - which even let the built in microphone active. OK.
But is there any adapter for the opposite? Converting the microphone / sound in part of that custom 2.5" to an e.g. 3.5" - so that some standard microphone or some other sound pickup could be attached?
Wether built in speaker would be left active or not isn't relevant for me.
Background: I have one of those programs for tuning musical instruments. It works fine with the built in mic in relatively silent rooms and for acoustic instruments. But imagine beeing on stage between two songs while the crowd is cheering!
If no such accessory is available: I would spend some extra Euros for a second hands free thing, cut off the side with the 2.5" plug and tinker a 3.5" on the open end.
But will this work - or have I to include some resistors or such?
Thanks, greetings
Manfred

There are such adapter on sales
http://www.expansys.com/product.asp?code=113967&tab=0
As for the issue of resister, I don't think you will be needing any. I've no experience on electric musical instruments, but a microphone is a essentially an active resistor/capacitor that convert sounds to resistance/capacitance-variation and hence electric signals. It does not produce any form of voltage itself (eg. you do not need battery for microphone).
Hence, it depends on your musical instruments. If you were to get the adaptor above, perform a voltage test on all 6 combinations (of the 3 contacts) to make sure your instruments does not produce any form of voltage/current. If it does not produce any form of voltage, you ought to be safe for a direct plug-in.

(oops, did I mix up " with mm in my initial post )
Are you using this adaptor yourself? With a Prophet? Does it work?
Not to appear nagging, but there are three facts that make me doubt:
- the description there tells me, that it "converts the standard 2.5mm three conductor jack"
- which can also be seen on the "larger image" (those pictures at expansys often are near causing eye cancer >;-) ), where the plug has *three* contacts
- description also tells us, the adaptor converts to a "3.5mm Mono Headphone Jack".
Well, the jack of Prophet has *four* contacts, and sound out comes in *stereo*. I guess that: tip and first ring are - stereo - out; 2nd ring is mic in; last "ring" obviously is ground. This I take from the fact, that my adaptor for standard 2.5mm to standard 3.5mm stereo earphones really delivers stereo out, but the internal mic is still working.
So I also guess, that this adaptor here has e.g. *mono* out on tip, mic in on 1st ring - and ground on third and last ring - which also would lead to connecting Prophet's mic to ground.
Or am I totally wrong here?
The question about resistors (and such) comes from looking at
http://wiki.xda-developers.com/index.php?pagename=Connectors
(but that's Wallaby and Himalaya wiring, and with the latter there's also an extra (5th!) "outer sleeve" connector); but you can see in the drawing there, that there are a diode and three capacitors between mic and ground, and serially a resistor (but all without values).
So I fear, that just connecting a (passive) guitar pickup won't deliver satisfying results.

Hmm. didn't notice that one is a mono output. Anyway, can't really find one with mic and headphone out for streo (actually, gave up searching). I guess there aren't enough market for people pluging in their own mic.
As for the diagram, it looks like that, for the micrphone, the circular wiring thing is an inductor, not a resistor, since it is marked as L1. From what it seems, it looks like those capacitors and inductor is there to bias the circuit such that the mic is to be in the right impedance to pickup speech. That is more to "adjust" the mic such that it will gives the correct values (probably due to its small size?). So, if you were to plugin in your instruments directly, the result may not be that good. But probably it will. You may need to tune your software to adjust for this?
As for the z-diode there, it is a mystery to me. Can't think of anything useful for it, except to ensure the mic-in is always >= 0 (greater or equals to zero).

Well, first of all: thanks a lot for your answers!!
I also gave up searching before posting here; also searched for a separate 4-ring 2.5mm plug; but before investing in a second headset just to get that plug, I thought I'd ask here ...
Inductors, resistors et all ... it's been way too long since my physics intensive course on grammar school ...
Your thoughts sound logical.
So I'll get me the headset for the plug and tinker an adaptor myself - without any extra inductors or capacitors. Will see how it works - if not, well, I'll come back here again to ask for the values of them ... and tinker along ;-)

I build an adapter on my own out of the standard hands free headphone which was included in delivery.Unfortuately I had to destroy the case a bit I just made a kabel with a 3,5 mm jack and soldered it on the circuit board and bridged the build in mikrophone.Now I am able to connect a stand alone microphone to my Prophet.
Cheers

you can order one @ http://mobile.brando.com.hk/

@ Repose: you mean the handsfree headphone? I already ordered one at expansys
@ colida: that's another idea, keeping the circuit board. Such, all capacitors etc. are in place ... maybe just looks a bit ugly, you really have to break that little housing.

Audio Jack

I can't use a headset (neither with Tomtom nor with the media player) because the output is warped.
If I use the regular headset then there is no sound at all.
I had a spare headset, so I took it apart and soldered the wires from the jack directly to the headphones. This is what happens:
The first few moments of the output are sometimes cut off. The left channel is almost OK and quite loud. The right channel clicks loudly and is muted, it isn't even half as loud as the left channel.
(Nothing like this happens if you playback the audio via the phone's speaker.)
Is this because of the ROM ( I upgraded tp WinMo 6.5)? I need the audio output for Tomtom and I'll probably solder both headphones to the left channel, but this is an inelegant and dissatisfyinfg solution.
Dirk

probably the best way to find out, whether the rom is responsible is to upgrade to anothr one, i thought i read you are using build 21159? try 21202 then, it is much better and faster anyway. but actually, that is just a general advise, since your problem doesn't sound like a rom problem at all.
it sounds more like a hardware issue, which is likely to occur with these old devices, buttons tend to fail and the sockets, too
EDIT: Please don't double post

Thanks for the reply.
I just followed your advice and upgraded to 201202. Let's see what it does to the audio.
But one question: The headphoes I use look like those which came with a T-Mobile SDA (in fact, they are pretty much the same). Should they work with the Blue Angel? What about the issue where people cannot use their headsets because there is no sound when the plug is pushed in the whole way. I had that too, bu is this a hardware issue?
Dirk

the layout of the ba plug is (from the tip towards the cable): mic, left, right, ground.
that is the standard layout for 4-poled 2.5mm plugs and sockets, i don't know about the sda, but maybe that one uses a special layout.
we had another thread on that, to be found here: http://forum.xda-developers.com/showthread.php?t=492144
anyways, i had a problem, when using a cheap 3-poled adaptor, because it had the layout: left, right, ground, meaning i only had little sound, and it was the left channel, just coming out of the right ear plug, so that only worked, when pulling it out a little bit. maybe this is a similar thing.
hope this can help you a little, though i think it is not the solution, yet
greetz,
Chef_Tony

Thanks again. Now I soldered the cables to the pins according to what you said. And I flashed the 201202 ROM. But the problem didn't change. I still have these problems:
The first part of the output is cut off most times.
Only the left channel is put through, if at all.
The right channel just clicks loudly.
Edit: I start to believe that there are two factors overlaying eachother. The right channel seems to be dead and I had the wrong headset. After de- and re-soldering the headset it works, minus the right channel. Seems like I have to live with that.
Regards,
Dirk

i am sorry to here that. apparently it is a hardware issue, maybe the following things could help you:
- if you happen to have an electronics store nearby, maybe you could buy a new 2.5mm socket, and assemble it yourself, following these instructions: http://wiki.xda-developers.com/index.php?pagename=DIS_BA_PICS (you could at least open it up and give it a look)
- since software faults are out of the picture now, maybe you could use bluetooth audio output, i don't know if you sat nav software offers bt headset profile or a2dp, but wmp at least does.
- 3rd option is looking for spare parts or broken devices on ebay
- 4th and most unlikely version: disassemble the device as shown in idea #1 and split the regular speaker input, you could derive at least another mono stream and put that to an external speaker to here it in the car, but i wouldn't ever do that, though it would probably work, where's the improvement, just a silly idea

how to replace microphone in HTC s620?

I would need help with my HTC s620. Sometimes the mic works perfectly, sometimes it does not, so people on the other end of the line can not hear me at all or just very-very low. I already tried changing regedit and also used the audio gain and microphone fix .cab files, but the basic problem remained: sometimes the mic works, sometimes not. I made soft reset / hard reset several times, still the problem remains. With my bluetooth headset I always have good voice quality even if the mic on the phone is not working. Altogether this drove me to the conclusion that I need to replace the microphone in my HTC s620.
On Ebay I can buy a new replacement microphone for a few $ but I don't know whether I would be able to replace it on my own. Anyone has any experience? Do I need any special tools for replacing the mic in my HTC s620? Can anyone provide me with a guide how to proceed? Any help is much appreciated.

antic323 said:
I would need help with my HTC s620. Sometimes the mic works perfectly, sometimes it does not, so people on the other end of the line can not hear me at all or just very-very low. I already tried changing regedit and also used the audio gain and microphone fix .cab files, but the basic problem remained: sometimes the mic works, sometimes not. I made soft reset / hard reset several times, still the problem remains. With my bluetooth headset I always have good voice quality even if the mic on the phone is not working. Altogether this drove me to the conclusion that I need to replace the microphone in my HTC s620.
On Ebay I can buy a new replacement microphone for a few $ but I don't know whether I would be able to replace it on my own. Anyone has any experience? Do I need any special tools for replacing the mic in my HTC s620? Can anyone provide me with a guide how to proceed? Any help is much appreciated.
Click to expand...
Click to collapse
There's a guide for taking apart your excalibur in the sticky, but honestly it doesn't specify how to change your mic but it will give a pretty good idea of what tools to use to open and re-assemble your dash.

Thanks for the response Mr. Clown. Indeed I would need a bit more specific info on how the MIC is attached to the phone and with what method it can be replaced. I read some forums on other type of phones where only the manufacturer is able to replace either the mic or the full board when it is impossible to replace the mic. As I mentioned earlier on Ebay there are two offers recently on OEM HTC mic for s620, however some forums also mention that even if a separate mic can be purchased, it does not guarantee that it can easily be replaced. Unfortunately I am not a tech expert, so I appreciate any guidance on this issue. Many thanks.

some possible solution
I searched a bit further on more general forums and it seems that I found the answer, so I post it here for others facing a similar problem.
It is not impossible but requires quite an experience and expertise to replace the microphone as it is soldered on the pcb. It needs high temparature heating and then the soldering of the new microphone. You can find new OEM microphones on Ebay (there are recently two offers: 3 - 6 USD price range + shipping), but you have to find someone who will replace the mic for you and who is experienced well and will not destroy your board with this procedure.
Here is a simple description of the process:
1. Set heater of your rework station between 400 to 417 degrees celcius, and air make the pointer of the air knob point aj 9 o'clock.
2. Select nozzle size that is not too big or too small for the mic.
3. Apply ample paste on the mic and direct the heat on it. Remove the mic with metal tweezers gently.
4. Apply paste to the interface of the mic to be soldered and then apply tiny solder on the pads to be soldered.
5. Place the mic correctly on the pcb and apply heat from the opposite side of the pcb, and remove the heat when the solder is melted.
Some have reported that this method really works, however I found no information whether it also works for the Excalibur as the interesting point is the exact place of the mic, so by heating it you will not damage other parts of the board.
I contacted the official HTC service and some other mobile experts, so I am looking for someone that can make the replacement for me... It is recommended that you also proceed similarly.
I hope this info will help.

If the mic sometimes works and other times not, why not trying to re-solder the contacts first? This is much easier than removing/replacing the microphone as you can apply the heat one contact after the other.
Dumb question: You are not covering the hole for the mic. with your fingers from time to time?

Thanks for the reply tobbie. I am surely not covering the mic with my finger or any other body parts ; ) So it must be the mic and not me causing the problem. For the time being I am still chasing someone experienced who could do the soldering for me... In the meanwhile I have flashed my ROM from 3VO.2.80.092509 to 3VO.3.50.033010, just to see whether this might be a software porblem. Flashing went well but problem remained. You are right pointing out that the MIC might be absolutely OK, as it sometimes functions well, and this might indicate that the problem is with the connection of the mic with the board and not the mic itself. However if I take the phone into pieces, then I would like to get it done, so I might still order this tiny mic on the internet. Out of curiosity: does anyone knows whether these mics are compatible with each other or not: I saw many Motorola (e.g.: V3) mics that look exactly as the HTC S620 mic, but I don't know whether they are really the identic.
For the time being I use my BT headset till I (hopefully) manage to solve this issue.

For a start, I would stay with HTC devices. All the older ones I have disassembled (typhoon, hurricane, tornado, excalibur, vox) share the same microphone (at least from the looks). Earpiece looks identical for all except the vox, ring-speaker looks identical for the 3 candy-bars while excalibur and vox seem to have the same as well.
Buying spare parts is usually more expensive than getting a used device with a broken screen or otherwise damaged. I have two definitely ruined boards (Tornado with a dead LCD interface + Hurricane with intermittent shut off) and some Typhoon parts that can not make a complete device.
Never soldered anything on the PBA - it is really delicate and if you spoil anything the board is gone. Possibly try to record something with the PBA accessible and apply some force to the mic while doing so. This should reveal if there is problem with soldering.

Many thanks for the help tobbie.
I will give a try and see how the mic would respond for such a "treatment". In the meanwhile I found a funny forum response from a guy who replaced a PCB soldered SonyEricsson W880 mic without a rework station, by just using a gas butane torch:
"I just managed to replace it. It wasn't so difficult.
First you have to unsolder the mic on the PCB (I used Gas Butane Torch from B&Q as I havn't got a Rework Station)
After that I found some old mic laying in my draw from samsung. I soldered it to the PCB using two thick copper wires
ps. If yo damage a track on the PCB you can solder a positive to the capacitor on the other side of the PCB."
Well it sounds a bit weird, anyway I would still go for an experienced expert with a rework station and proper equipment for replacement.
Danke und tschuss

Last night I dissambled my HTC s620 (it was a bit harder then I thought) and got to the mic, which is under a small rubber case, I cleaned a bit the surroundings, checked the contacts, but from the first sight everything seemed to be tight and fixed, still I pressed the mic a bit but no better mic functionality, actually now I can only here everything said in the mic very-very low and from last night there was no occasion when I could record with normal sound level. This might still indicate bad contact. Anyway, I will get now a replacmenet mic on Ebay and try to replace it. Will report whether it has really solved my problem.
The mic has the following numbers on it: S777 261, I don't know whether these types of mics are really compatible (I assume that they are - not only within the HTC brand but also with similar Motorola mics), anyway I will not go for a cheaper V3 mic but buy one which is advertised as an HTC S620 mic.

Same problem.
I've been using my excalibur for 2 weeks and, last night, in the middle of a call, my microphone stopped working. completely. does anybody have any idea of what i can do to solve this problem?!
please, i'm desperate.

amiloicram said:
I've been using my excalibur for 2 weeks and, last night, in the middle of a call, my microphone stopped working. completely. does anybody have any idea of what i can do to solve this problem?!
please, i'm desperate.
Click to expand...
Click to collapse
You try to check the headset jack may be the cause of it