Modo de servicio

Le escribo a la comunidad para saber si alguien pudiera facilitarme el modo de servicio de un televisor marca Sanyo modelo 4 VM2120MA. Les agradesco de antemano.

3 Soluciones propuestas

Ahí te va colega

Mantener presionado el botón MENU en el TV y presionar el botón 2 en el control remoto.
Para ajustar la sintonía fina, mantener presionado el botón MENU en el TV y presionar el botón MENU en el C/R..
LB1-A Con el TV encendido, presionar MENU en el TV, y simultáneamente en el C/R el nº de menú que desea acceder: 1: geometría, 2: imagen, 3: audio estéreo, 4: sintonía fina
Copyright Luis Alberto Tamiet Con el TV encendido, presionar M (memory) en el TV durante dos segundos, inmediatamente, presionar MEMORY en el C/Remoto, luego SOUND para elegir los ítem. Con VOL +/- se ajustan los valores.
Mantener el botón MENU presionado mientras se conecta el TV a la red eléctrica. Utilice CANAL+/- para desplazarse y VOL+/- para ajustar los valores. Pata salir y guardar cambios: MENU
TVS-1430MA TVS-2142MA TVS-2152PF
y otros chinos TMPA8823
TMPA8859 Dos modos de servicio: S y D Para entrar al modo S, presione VOL- en el TV hasta 0, manténgalo presionado, y presione DISPLAY en el c/r.
Para entrar al modo D, una vez dentro del modo S, seleccione la opción VP60, debe tener el valor: 00, entonces presione VOL- en el TV y sin soltarlo, presione DISPLAY en el c/r. Para cambiar de canal u otro ajuste de usuario, sin salir del modo de servicio, presionar DISPLAY
Saludos colega pues te envio el o la info quizas te ayude
Did you know you can screw Future Shop, Circuit City and other
electronics stores TV sales departments with just a few keypresses?

Most TVs sold today have digital service menus, hidden and completely
unknown to the consumer. Not quite an easter egg, because these
'features' are well known to TV servicemen. And heaven knows, I'm
about to do their industry a favor by publishing this file.

Once you are in a service menu you can do all kinds of things to the
TV that used to need a screwdriver and the cover off. You can turn
the Horizontal Hold way over until the TV shuts down - requiring a new
memory chip to correct. You can totally de-align the tuner. You can
change the colour temperature so it looks like an old fashioned sienna
photograph. You can put its user menus in a foreign language, and on
some models that can't be undone. Oftentimes, your changes can only
be corrected by a costly visit from a senior level technician, someone
the store isn't likely to have on staff. Do this to 8 or 10 TVs and
your actions will cost the store a LOT of money. The manufacturer and
distribution network also must bear the costs of this, unless of
course you're caught.

Here are some TVs you can screw with:

RCA and G.E. (most models after '94): Turn the TV on. Hold down MENU
and hit POWER and VOL+. Now you're in the service mode, looking at
parameter 0. It will say:

P00 V00

Use the VOL+ key to change the value (V number) to 76. This has to be
done before you can do anything else; it's sort of a password.

Once P00 is set to V76 you can use the Channel + and Clannel - buttons
to select from the first 12 parameters. P13 is another password - set
to 77 to get higher parameters. Depending on the model, another one a
couple of dozen parameters up will require a password of 78. This
varies by model but you will know when you have found it because you
won't be able to advance past it.

The first parameter, P01, is probably the quickest and easiest to
work. It is the Horizontal Frequency control. When you select it,
the TV will lose horizontal sync. Turn it all the way down or all the
way up with VOL- or VOL+ and then get out of setup (if the TV hasn't
shut itself off by then) with the power button.

Here are the parameter tables:

P00 Password (Must set to 76) P14 PLL Tuning
P01 Horizontal Frequency P15 4.58 MHz Trap
P02 Horizontal Phase P16 Video Level
P03 EW DC (Width) P17 FM Level
P04 EW Amplitude P18 B+ Trim
P05 Vertical DC P19 RF AGC Chan 6
P06 Vertical Size P20 RF AGC Band 1
P07 Red Bias P21 RF AGC Band 2
P08 Green Bias P22 RF AGC Band 3
P09 Blue Bias P23 D-PIP Chroma
P10 Red Drive P24 D-PIP tint
P11 Green Drive P25 D-PIP bright
P12 Blue Drive P26 D-PIP contrast
P13 Password (Must set to 77) P27 Factory Tint

P28 Password (Must set to 7

P100-156 - Tuner alignment parameters. If you fuck with these, the
tuner will have to be aligned by a professional.


Panasonic TV's after 1996 can be set to "Serviceman Mode" with the
following remote control sequence:

First, select the SET-UP icon and select CABLE mode.

Then, select the TIMER icon and set the SLEEP timer for 30 minutes.

Next, press the ACTION button twice to get out of the menus.

Now, change to channel 124.

Then, adjust the volume to minimum (0).

You're almost there - Hit the VOL down button on the TV itself (not on
the remote) and a red "CHK" should appear in the upper corner.

Now, if you press the ACTION and VOLUME DOWN buttons (again, on the
TV, not the remote) you will toggle between AGING and SERVICEMAN modes.

Select Serviceman mode. The POWER button on the remote control will
select one of the five Serviceman Adjustment modes.

The modes are:

B - Serviceman VCJ SUB Adjustments. These include sub-tint,
sub-color, sub-brightness, sub-contrast, colorkiller/ABL/gamma,
audio and video adjustment, and vertical size.

C - Serviceman VCJ Cut-off adjustments. These include Red, Green
and Blue cut-off, red and blue drive, automatic fine tuning
(AFT), RF AGC (RF gain control), horizontal center, beam limit,

S - Serviceman Options Adjustments. These involce the PIP and

M - Serviceman MTS (Stereo/SAP) adjustments.

CHK - the mode you first entered. Normal picture and sound, lets
you check things over and still have a hotkey into the
service menu.

There is one more adjustment that isn't in the five modes, it's
global. When in either the yellow or red CHK mode, you can press
RECALL on the remote control to enter the purity firld check mode.
This lets you select a pure white, red, green, or blue screen. A
good thing to walk away from if you just want to temporarily freak
out the floor manager, but it will be fixed as soon as the TV is
turned off. Oh well.

To get out of Serviceman mode, press ACTION and POWER on the remote
cimultaneously for at least 2 seconds. The TV will momentarily
shut off and then comes back on.


Newer ones with the full colour menus...

Go into the menu, select CLOCK SET, and you will get the clock set
menu. Set the clock to 3:21 AM. As soon as you select "Start Clock",
then UP/DOWN. You will then be in a service menu which will let you
change all kinds of neat things.

The service menu on new JVC televisions is quite self explanatory, so
I will not include a walkthrough here.


I think this might work on Goldstar TVs as well, since both Zenith and
Goldstar are the same company, LG Electronics.

Hold the MENU button. The menu will come up and then after a few
seconds will go away. Now let go of the MENU button and enter

9 8 7 6 Enter

You will get a service menu that varies widely depending on model, so
I won't include a walkthrough here. The ones I tried were fairly