dream box card reader fix

[spooky]

Dream BoX card reader fix
I have a fix for the dream box card readers
After many images and several card - figured my box was faulty
So i dug out the oscilloscope
And started looking around
Image was 107.2 emu rdgd and I found the after a reset the emu the clock osc went
From 1.5 MHz to 6.3 MHz the clock at 1.5 MHz level was about 3v pp
Now the problem when it changed 6.3 MHz the level dropped
Down to 1 v p-p this works for some sub cards but not any thing else
This is also a problem for some card programmers to

Solution amplify the clock signal

I have only done this mod to the top card slot as it easier to do
The pin out for the top card slot extention is
1 +5v
2 MLR or reset
3 clocks
4 card switch
5 gnd
6
7data I/O
8 card switch
You need to remove the top card socket and cut the track that
Goes from pin 3 of the extender board to pin 3 of the card slot
Solder a wire on the card socket pin 3

Grab a BC548 and solder the emitter to gnd pin 5
collector to the wire from The card socket pin 3 and a 220 ohm which goes to pin 1 +5v
The base is connected to pin 3 on the extender connector


With this mod the 6.3 MHz level came up to 4vpp and I can read Goldies emerald subs
But for some reason fun cards don’t work but I don’t think it a clock issue

I am going to contact dream media as ask if they have any fixes and will update at a later stage

[spooky]

added pic

[ZBee]

spooky is this youre fix...or is it "wille coyotes" from austech if so...please add the appropriate information in reagrds to this....as the posts are identical

[spooky]

what better why to catch a roadrunner -desguied as spooky duck

[xphile]

@spooky,

Hahaha your secret is out of the bag m8 . Must confess though that I already knew

[ZBee]

i suspected sorry but i hate plagerism...well done wil...oops i mean spootey

[aLRighT]

Did you actually mean that only yours is broken? or this is a common problem?

Wouldn't that have void the warranty?

[spooky]

i suspect its a wide problem not just me and it also depends on the cards being used



i was waiting for the warranty bit

you problly have voided the warranty putting in diferent firmware


i dont care about the warranty -it was voided when i put the harddrive in

it say on the box "support for MPEG4 decoding " -i havent seen any of that either

[spooky]

had added a better picture

[nop]

spooky
is this mod compatible with the changing of 2 resistors @ v1 boxes ?
could it be possible for dream to increase the voltage by software in a later image?

/*nop*/