or Connect
AVS › AVS Forum › HDTV › HDTV Recorders › iView-3500STB Tuner & DVR Owners Thread
New Posts  All Forums:Forum Nav:

iView-3500STB Tuner & DVR Owners Thread - Page 29

post #841 of 3148
Had an error on the test, check later post for correct results.
Edited by johnnyrw2 - 7/14/13 at 9:28am
post #842 of 3148
Thread Starter 
chuckboycejr;
Just program using the learning function of that remote. Slower process, but you only program what you will use instead of extra buttons you won't use. wink.gif

johnnyrw2;
What type of device are you using for readouts like that? I assumed you were using a IR thermometer.
post #843 of 3148
Quote:
Originally Posted by videobruce View Post

chuckboycejr;
Just program using the learning function of that remote. Slower process, but you only program what you will use instead of extra buttons you won't use. wink.gif

johnnyrw2;
What type of device are you using for readouts like that? I assumed you were using a IR thermometer.

I'm using a spare DCU (Distributed Control Unit) with a remote UC (Universal Control) module that has eight analog or digital inputs and eight digital outputs (relay). I can add 32 UCs to give 256 inputs / 256 outputs and can program the DCU to do whatever I can think of doing or want to do. I have many type sensors, 4-20ma, semiconductor, etc but these were the smallest, (semiconductors) sensors I have so I used them and soldered the sections of wiring to them. Calibrated them through the software with a standard. The equipment is some that I used in my working career, dated but great equipment. If you check that youtube video (graphics) I posted you will see some of the capabilities of the equipment. You need to watch the entire 20 minutes or so though. That was just part of the system that is shown in the graphics. It is commercial/industrial type equipment. I took the pictures of the laptop screen at the various intervals. Back when I was in business the software alone cost me $5,000.00. I still have quite a collection of hardware.
post #844 of 3148
Thread Starter 
Sorry I asked. redface.gif I guess I will have to settle on a IR thermometer.
post #845 of 3148
I have install V7, the Schedule daily and weekly work for the first schedule time, next daily record time will be next-day + 5 days. Next weekly schedule time is next week day + 5 days. Look like there is a mistake in calculation on next record time on both daily and weekly schedule.
post #846 of 3148
Johnnyrw2...

First Off THANKS !!!! for doing these tests

I have ti ask just to be clear. You are powering you HD from the USB port aren't you?

I don't have the test equipment you do put with two very good thermometers in direct contact with the diode d7 you are call the rectifier I have gotten temps around 185+ with HD recording. VB reported similar temps.,

On your D2 you get rather high readings. I never did measure the actual d2 because it never even felt warm to the touch.

T1 and the processor do get warm on my box but not so warm I felt a need to be overly concerned,

My focus was on that Rectifier diode D7. That one gets scorching hot. When I say, "scorching hot" that is with the cover off the box.
Now since I've replaced it with a different rated diode the temp with HD recording is around 128 F which is closer to your readings.
I would think that there might be a possibility that the original diode on my was bad but when saw the same readings with a replacement diode.
Now I am thinking that the D7 on my PS might have come with a different diode that the one you have. Not unheard of for parts to be substituted.
My original diode was a.... SR3100 100V 3A Schottky
Could you please take a look and see if you can tell what diode is on your board?
The replacement I'm now using and getting very comfortable temps is rated at 40 V 5A SB540 Schottky
.
.
.
post #847 of 3148
Quote:
Originally Posted by videobruce View Post

Components;

(system processor still unknown at this time) (I believe iView doesn't want to release the make & model number.)
Samsung S5H1411X01-T0 DTV receiver/demodulator (released 2007)
Spansion FL032PIF Flash memory 32 Mb
Nanya NT5TU32M1600BE System memory 64MB (Thanks to nickle2 for correcting the model number and to demonfoo for confirming the memory size)
Rafael Micro RT534 Modulator
Artschip JRC4558 Dual Op-Amp
?? NM120AA Tuner (unknown, possible Russian based company)
The "system processor", or more correctly, the SoC (System on a Chip) is very likely made by MStar, a Taiwanese (not mainland China!) semiconducter manufacturer.
The part number for the SoC might be the MStar 7816, based on this product description.
MStar is a MIPS licensee, so the processor in the SoC is most likely to be MIPS.

Like other multimedia SoCs, chip information is very difficult to obtain, usually only under NDA.

From the MStar website:
Code:
Most of MStar STB chips for FreeToAir operations are provided with MStar SW turnkey solution. This guarantees to our customer:

    Best time to market
    Best price, getting rid of SW royalties for FreeToAir business, providing a compelling state of art BillOfMaterial
    Best performance, with MStar DTV Stack being deployed already per millions.
    Best support with a DTV stack already field tested and field proven on all your target countries
This implies that the firmware used in the iView box is most likely a reference design from MStar.
My personal experience with software reference designs is that they are rarely "ready for primetime" and sometimes at the level of just demonstration software (i.e fragile rather than robust, intended for a dog&pony show, poorly tested and debugged).

That the tuner may be of Russian origin is not surprising. MStar makes products for Europe (DVT stuff) and Russia.
Google "Mstar 7816", and the third search result is the Russian Wikipedia page for MStar.

Regards
Edited by blue_z - 7/14/13 at 2:20am
post #848 of 3148
Quote:
Originally Posted by nickle2 View Post

Johnnyrw2...

First Off THANKS !!!! for doing these tests

I have ti ask just to be clear. You are powering you HD from the USB port aren't you?

I don't have the test equipment you do put with two very good thermometers in direct contact with the diode d7 you are call the rectifier I have gotten temps around 185+ with HD recording. VB reported similar temps.,

On your D2 you get rather high readings. I never did measure the actual d2 because it never even felt warm to the touch.

T1 and the processor do get warm on my box but not so warm I felt a need to be overly concerned,

My focus was on that Rectifier diode D7. That one gets scorching hot. When I say, "scorching hot" that is with the cover off the box.
Now since I've replaced it with a different rated diode the temp with HD recording is around 128 F which is closer to your readings.
I would think that there might be a possibility that the original diode on my was bad but when saw the same readings with a replacement diode.
Now I am thinking that the D7 on my PS might have come with a different diode that the one you have. Not unheard of for parts to be substituted.
My original diode was a.... SR3100 100V 3A Schottky
Could you please take a look and see if you can tell what diode is on your board?
The replacement I'm now using and getting very comfortable temps is rated at 40 V 5A SB540 Schottky
.
.
.

First I'm glad you asked the questions, it made me check into my tests.

I think I have my head on straight now, I thought the readings were lower than I expected and they were.
At first I thought it may be the sensors I used, AD592 temperature transducers but they are linear to 158 and not bad to 221 degrees. The problem is the DCU UC controller combination I used. It is only good for 140 degrees due to the AD converter.
I will retake the test with a different controller that should handle the higher temps. I will confirm that.

D7 is SR3100
Edited by johnnyrw2 - 7/14/13 at 9:29am
post #849 of 3148
Thread Starter 
Great info blue_z. I added that to the 1st post.

Going further into the firmware jungle finds this;
http://www.mstar-europe.com/products_STB.php
http://www.nds.com/Software_Solutions/XTV_DVR_Technology/
http://www.enigma-systems.com/en/dtv-markets/terrestial

This situation is worse than I expected. Not only don't these no name Chinese manufactures don't write their software, whoever does is tied into the hardware manufacture and other companies. No wonder why nothing can get done and probably never will.
What TiVo doesn't hamper, these others will. mad.gif

.
Quote:
My personal experience with software reference designs is that they are rarely "ready for primetime" and sometimes at the level of just demonstration software (i.e fragile rather than robust, intended for a dog&pony show, poorly tested and debugged).
You can add myself and many others here judging by this and the VRX. wink.gif

I wonder what a "DVB-C zapper box for US DTA" is??

.
Edited by videobruce - 7/14/13 at 3:35am
post #850 of 3148

Comments Made Regarding..... videobruce's Components List


blue_z ,
Thanks for the very knowledgeable information.
Excellent post with plenty of "Eye Opening" and "Thought-Provoking" subject matter.

Quote:
blue_z Wrote....
The part number for the SoC might be the MStar 7816, based on this product description.

This is pretty is much what I previously commented on..... How a retailer (HomeWorx, MediaSonic, Amazon Retailers, and others) interested in marketing a product, contracts with an overseas developer/manufacturer and custom designs the looks, documentation, packaging, etc and has the marketing company's unique trade name imprinted on the product. The link above takes you to the Asian Site..... Alibaba.com Where these manufactures market their wholesale products and services to the retail market oriented investors.

Quote:
blue_z Wrote....
That the tuner may be of Russian origin is not surprising. MStar makes products for Europe (DVT stuff) and Russia.

With one of the links VB provided for the Russian connection, Enigma Systems. I found something interesting and rather humorous:

The following text was taken from various pages on the Enigma Systems website
(I highlighted and under-lined in blue)
Quote:
Enigma Systems

Flexibility, affordability, competitiveness and I purchase cialis online ease of use are the strong points of the payday loans mt orab ohio new generation CA, VIP Control, to meet the challenges of digital TV networks in emerging economies.

All the products in the VIP range have been designed to be easy to use and generic cialis mg amp mg quick to understand, with web interfaces that are simple and intuitive.

In the absence of cable infrastructures, in numerous countries with emerging economies, the digital terrestrial technology remains the best alternative to generic viagra caverta SAT and IP networks.

Within the framework of the use of a TV network for pay TV services, the key to the protection problem lies in the renewal of the security device. When the cheapest viagra prices latter is based on physical security technologies (smart card, electronic component) the renewal cost becomes prohibitive so making the economic model of the operator non-competitive relative to the illegal economy.

The virtual smartcard, VIP Boxshield, integrates the viagra from pharmacy western australia owned and patented CERTEX® technology. The latter enables

Obviously, the web site has been hacked (or has it?).
Now we understand. why some of us feel that they have been
.... Screwed Again! eek.gif
.
.
.
Edited by nickle2 - 7/14/13 at 1:24pm
post #851 of 3148
Found several other STB's PVR's based on the Mstar MST7816

Doing an eBay search for...... Mstar 7816
Click on Listing Title to see Information

Terrestrial digital receiver DVB-T2 HD 1080p FS-820T2 Satellite receiver H.264
$40
Black HD Digital Terrestrial Receiver Video Decoder MPEG4 DVB-S2 MST7816 8901
$47.99
Digital TV SetTopBox HD Player Fully DVB-S/DVB-S2/MPEG-2/MPEG-4/H.264 compliant
$79.00
.
.
There are many other STB's PVR's out there.
mad.gif Problem is, they all might be plagued with the same problems we are having. mad.gif

rolleyes.gif Anyone with a few extra buck$, burning a hole in their pocket, willing to take a gamble??? rolleyes.gif
smile.gif They all have better looking remotes. smile.gif
.
.
post #852 of 3148
I had a problem with the previous tests, I used equipment which had a 7 bit AD converter that only goes up to 140 degrees (which I had forgot), Re-did the tests with equipment that has a 12 bit AD converter which will cover the higher temps. The re-tests afforded the opportunity to compare the original 3500 chassis temps with the one I modified by installing a fan on the back and installing a SATA hard drive inside the chassis, without repositioning the sensors.. I have a picture of it in a former post. Here is what I recorded, these are screen pictures of the laptop screen taken at the intervals indicated by the "plus minutes" (from test start.)

SENSOR LOCATIONS



post #853 of 3148
johnnyrw2 ....... Reports Revised Temperature Readings


Thanks Again

Good to see this. Now your professional temp readings are very close to what I have observed.
/
/
/
post #854 of 3148
New V7 issue to report

Today when I turned on my IView 3500 I could not get any picture on any channels. There was no indication that there was an issue other than no picture or sound. I could go from channel to channel and there was no reception. I turned it off and waited a few minutes. Turned it back on and there was reception on every channel.
post #855 of 3148
Quote:
Originally Posted by jjeff View Post

The Homeworx seems to be currently unavailable from Amazon and they don't know if they'll be getting it back......
All it's reviews on Amazon also seem to be gone....
http://www.amazon.com/Homeworx-Analog-To-Digital-Converter-Analog-Pass-Through/dp/B00BBDC0AS/ref=sr_1_9?ie=UTF8&qid=1373570972&sr=8-9&keywords=HomeWorx

That's their converter box. The PVR is still available: http://www.amazon.com/HomeWorx-HW-150PVR-Converter-Recording-Function/dp/B00CXAE92K/ref=sr_1_2?s=electronics&ie=UTF8&qid=1373845663&sr=1-2&keywords=HomeWorx
post #856 of 3148
Quote:
Originally Posted by nickle2 View Post

Found several other STB's PVR's based on the Mstar MST7816

Doing an eBay search for...... Mstar 7816
Click on Listing Title to see Information

Terrestrial digital receiver DVB-T2 HD 1080p FS-820T2 Satellite receiver H.264
$40
Black HD Digital Terrestrial Receiver Video Decoder MPEG4 DVB-S2 MST7816 8901
$47.99
Digital TV SetTopBox HD Player Fully DVB-S/DVB-S2/MPEG-2/MPEG-4/H.264 compliant
$79.00

All three of these are FTA satellite receivers, not for OTA. But I do wonder if they may have similar problems. Too bad ebay does not allow for reviews of the product, only the seller.
Edited by Vegas_Vic - 7/14/13 at 5:17pm
post #857 of 3148
Oh.... OK, they are satellite boxes. Silly me! rolleyes.gif

I just basically did a search for the Mstar 7816 System Processor.
There is apparently a lot of this stuff (being polite here) out there.

I wasn't serious about "Buying & Trying. We have enough problems as it is.
All these boxes look pretty much the same fro the back side. Which leads me to think that the main board is pretty much identical.

From what blu_z mentioned regarding the MStar processor and the MStar STB chips for FreeToAir operations
It makes one wonder exactly who it is that is (if they still are) working on correcting all these problems with firmware up-dates.
Is it iView or someone else further up the chain.

Question...
Since I know nothing about modern cable and satellite (I don't and won't pay for TV) Why is it that these (satellite) boxes make this claim,"Digital reception covers VHF & HUF band" Assuming HUF is a typo for UHF. Is VHF and UHF somehow part of satellite reception? Maybe this just serves to show my ignorance(s). Or.... that of those who wrote the advertising.
.
.
post #858 of 3148
Quote:
Originally Posted by LenL View Post

New V7 issue to report

Today when I turned on my IView 3500 I could not get any picture on any channels. There was no indication that there was an issue other than no picture or sound. I could go from channel to channel and there was no reception. I turned it off and waited a few minutes. Turned it back on and there was reception on every channel.

Hmmmm...... Is this a problem with v7 or is it a problem with your 3500, or all the 3500's? Might even be a once in a lifetime occurrence.
Let's wait to see if it happens again to you or if someone else has this happen.
post #859 of 3148
Thread Starter 
All of those boxes do not have ATSC tuners. Anything with "DVB" in the description for the tuner are not for the US market.

.
Quote:
Obviously, the web site has been hacked (or has it?).
Not necessarily, though that does sound extreme for "Chinese English" unless those 'out of context portions' have a link to another web site. Sounds more like massive data corruption along the way.
post #860 of 3148
Quote:
I just basically did a search for the Mstar 7816 System Processor.
There is apparently a lot of this stuff (being polite here) out there.
Yes, like this box or this one.
A search comment from the Alibaba site stated that "there are 332 ATSC digital TV box for america from at least 30 suppliers on Alibaba.com".
Quote:
All these boxes look pretty much the same fro the back side. Which leads me to think that the main board is pretty much identical.
No, some of these units have small variations in connector placement that indicate different boards.
This one interests me:
(I tried to embed the photo here, but it has no URL, so you'll have to follow the above link to see it.)
It claims to be an ATSC STB & DVR, and has Ethernet for networking.
But instead of antenna connections, they are labeled "LNB", which would imply satellite connections.

Also interesting is this DVB satellite box, because it has eSATA (for a faster HDD connection), Ethernet for networking and runs the Linux OS. There are only a handful of SoCs that have SATA ports. And it would interesting to know what PVR software was used .

Neither descriptions of these two STBs (called Dreamlink and Dreambox) mention MStar or 7816.
Quote:
It makes one wonder exactly who it is that is (if they still are) working on correcting all these problems with firmware up-dates.
Is it iView or someone else further up the chain.
Since Homeworx claims that FW fixes are also imminent, that might imply a common fixer. That could mean the SoC manufacturer if done in-house, or whomever they might have subcontracted for the software development.

I took a look at the iView firmware update files. I was hoping to find copyright notices that would identify the owner or developer.
Instead the mystery just deepens.
There were no copyrights. The only corporate name that popped up was "ACD Systems", and they normally produce photo-editing applications, not embedded software for DVR/PVR.
Portions of the files had "MSVC" tags, which would seem to indicate Microsoft Visual C was used!!??.
There were indications that the update flash data within each file was Lzma compressed, which would explain the lack of readable text strings and possibly no copyright text.
There was clear evidence that this system uses the U-Boot (aka Das U-Boot or universal) bootloader. That has two implications.

(1) U-Boot is released under the GNU General Purpose License. One of the conditions of using GPL software is that the source code used must be freely available. This does not mean we get access to all of the STB source code. But since iView sold this box and it (seems to) use GPL code, then that source code must be made available. In addition the product should indicate that it uses GPL code; a lot of Panasonic HDTVs use GNU Linux, and the GPL notice is printed in the owners manual and displayed in the on-screen Setup menus.
(I'm not a lawyer, so don't quote me on the GPL requirements.)

(2)To interact with U-Boot, a developer would need access to the system board through a serial console, i.e. a RS-232 port.
The 4 contacts in the rectangle near the S/PDIF connector are prime suspects for being the serial port.
This is not going to get anyone close to hacking this STB or fixing bugs. More likely you can learn a bit more about it, like the SoC manufacturer or the copyright holder of the firmware.
Quote:
Question...
Since I know nothing about modern cable and satellite (I don't and won't pay for TV) Why is it that these (satellite) boxes make this claim,"Digital reception covers VHF & HUF band" Assuming HUF is a typo for UHF. Is VHF and UHF somehow part of satellite reception? Maybe this just serves to show my ignorance(s). Or.... that of those who wrote the advertising.
.
No, satellite signals have to be in a different frequency band so that they do not interfere with terrestrial signals. That misstatement could be a translation error or ignorance on the writer's part.
Most of the other, non-ATSC boxes are for the DVB standard. But DVB has three sub-types: Terrestrial, Cable and Satellite.
Could you have misread "DVB-T" as "DVB-S"?
Or it seems that some boxes with DVB-S tuners (e.g. Dreambox) can be optionally manufactured with DVB-C or DVB-T tuners.

Regards
Edited by blue_z - 8/10/13 at 4:51pm
post #861 of 3148
Thread Starter 
Interesting the various styles for the enclosures. This would be a welcome change. (Note the rear panel power switch);

LEAD Technologies Inc. V1.01
post #862 of 3148
Quote:
Originally Posted by nickle2 View Post

Hmmmm...... Is this a problem with v7 or is it a problem with your 3500, or all the 3500's? Might even be a once in a lifetime occurrence.
Let's wait to see if it happens again to you or if someone else has this happen.

Agree. I was just reporting it in case others have seen it or will see it. Very strange.
post #863 of 3148
Quote:
Originally Posted by videobruce View Post

Interesting the various styles for the enclosures. This would be a welcome change. (Note the rear panel power switch);

LEAD Technologies Inc. V1.01


First thing I noticed on this one was the poor fitting of the power cord coming out of the chassis. Appears they got the notch too large.
post #864 of 3148
Quote:
Originally Posted by johnnyrw2 View Post

First thing I noticed on this one was the poor fitting of the power cord coming out of the chassis. Appears they got the notch too large.

The one on top looks like it was designed especially for Amazon.. (the "smile") biggrin.gif
post #865 of 3148
There are a lot of inexpensive FTA satellite boxes on the market, and most are of Chinese manufacture. They range from bad to very good, and from $17 for a basic unit to over a hundred.

The thing is, satellite receivers all generally work as well in China as in the USA, it's pretty much the same standards. But an ATSC device of any kind would be pretty difficult to beta test in China where TV is DTMB. I think we are all paying to be American beta testers for the Chinese.

I, for one, welcome our new Chinese overlords.
post #866 of 3148
I have the HomeWorx HW-150PVR and just installed the new firmware update that was released today. It did fix the time issue and the EPG single page issue. However, I can't get it to access more than about two days of program data on most channels. I also tried to see if it would tune in Clear QAM and that was a no go. Could someone confirm that the iView-3500STB does still tune in clear QAM? I can only assume that it's a difference in firmware since the two devices do appear to be almost identical. Thanks.
Edited by tahoejoe - 7/15/13 at 3:54pm
post #867 of 3148
TV stations are only required to broadcast 12hrs of PSIP guide info but many do more(some do less). 2 days is probably about as good as you'll get, PSIP guides aren't that great.
Are you sure you have any clear QAM channels available? I lost mine some time ago. I'd hook up another device like a HDTV to see if it gets any clear QAM channels, if it does then your tuner should get them also.
Lastly did you use the iView firmware? I had though you couldn't do that, I thought someone tried it and it bricked their Homework box.
post #868 of 3148
Regarding iview firmware on the HomeWorx STB
Quote:
Originally Posted by jjeff View Post

Lastly did you use the iView firmware? I had though you couldn't do that, I thought someone tried it and it bricked their Homework box.

It didn't "brick" the STB. It caused the HomeWorx remote to not work. He thought it had at first. That person figured out that he was able to use his 3500 remote with the HomeWorx STB. The problem was that the better remote no longer worked.
Good thing he had both the 3500 and the HomeWorx. Now that they have released the firmware he should be able to install that over the 3500 firmware.
Edited by nickle2 - 7/15/13 at 5:03pm
post #869 of 3148
tahoejoe...
Reports HomeWorx Firmware Released
Quote:
Originally Posted by tahoejoe View Post

I have the HomeWorx HW-150PVR and just installed the new firmware update that was released today. It did fix the time issue and the EPG single page issue. However, .............

When you say,
Quote:
It did fix the time issue
What time issue are you referring to. There are several.
Time Zones
Daylight Savings
24 hour vs 12 hour format
Recordings that span midnight
Scheduling Daily and Weekly Recordings
Did I leave out some?

You further state that EPG works as it should now? Except for only 2 days of listings. Not that big an issue.
Has the problem of text from previous listings not getting purged from the right pane been corrected?
Are you able to scroll through pages of text in the right pane of the EPG screen (page 1of 3, 2 of 3, etc.)

If I remember correctly the HomeWorx STB came with the same Version 3 firmware most of us started out with.
Over the weeks or months we have seen several improvements from the original firmware,

So the question is.... do you still basically have version 3 with only the improvements you just announced here?
Or, do you see the same improvements we have in the now version 7 of the iView firmware.

Maybe there is some hope for the 3500 after-all.
I'd say it all depends on who is doing the debugging, Is it someone like from Mstar doing it for all? Or, is it up to the individual marketing concerns like iview, and HomeWorx, etc..
.
.
.
post #870 of 3148
Direct From The MediaSonic HomeWorx Forum





Just answered some of my own questions,

Would be nice to hear from tahoejoe and other HomeWorx owners how well all these fixes work-out for them.
.
.
.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: HDTV Recorders
AVS › AVS Forum › HDTV › HDTV Recorders › iView-3500STB Tuner & DVR Owners Thread