Grundig FINE ARTS VISION MFW 82 - 710/9 DPL/PIP Service Seite 10

Allgemeiner Teil / General Section
Service and Special Functions
GB
1. Switching-on Options
1.1 ATS Reset
Press and hold button "L+" on the TV and switch the mains button "ON".
- Analog default values are loaded.
- ATS bit is set. This option starts the ATS europlus function the next
time the TV is switched on. The previous programme allocations
(channels) are cleared.
- Safety circuit counter and operating hours meter (in "SERVICE"
menu) is set to zero.
1.2 ATS Start
The Auto Tuning System (ATS) is started selecting the menu –> "Adjust
language on screen" –> "Adjust country" –> pressing the "OK" button.
The ATS system scans the frequencies in ascending order, indicating the
channel. When setting the country F and *others, the display mode can
be changed optionally to indicate either the channel or the frequency.
The ATS system determines the station identification or ACI signal.
When finding an ACI station, ATS search is stopped, the ACI data is taken
over and entered into the station table. When changing from ATS to ACI it
is possible during a period of 5s to stop the ACI function with the button "TXT".
Pressing the "TXT" or " " button stops the ATS function. The ATS bit
will not be reset.
Resetting the ATS bit without changing the existing channel table:
On stopping the station search function by pressing "TXT" or " ", select
"AUX" –> "green button" for direct channel entry, detune the finetuning
value by one step and reset it. On storing this setting, the ATS bit is
reset.
Additionally, for the programmes 1...99, the volume offset is reset and
the default values for "Lumadelay" and "Peaking" are stored together
with the Peri-bit for the respective country.
1.3 Loading the Average Values / Emergency Data Set (ROM Data)
This is only possible once on replacement of the NVM or
On replacement of CIC80095 (NVM) the TV must be started with the
emergency data set.
Press and hold the "P-" button on the TV and switch on with the mains button.
In doing so, the parental lock is deactivated and the following data is
read out from EPROM CIC80070 and loaded into the non-volatile
memory IC80095:
IC80095: (data specific to TV, can be set via the Dialog Center):
- picture geometry
- cut-off green and blue (white balance)
- AFC reference
- OSD position and PIP position, vertical and horizontal
- production data
- special functions, can be set via the Dialog Center (ATS with
language and country selection, switching on with AV, frequency bit,
AV1 or AV2 S-socket, display of bar scales, Megalogic data inser-
tion, format switch-over and picture format, AVL, picture tube)
- analog values (e.g. brightness, volume, colour saturation, black/
white contrast)
- Perfect Clear
- blue screen
- economy switch
- security
- picture and sound settings
- frequency, channel number, station ident, Peri, finetuning, TV
standard, luminance, noise, text/menu, reversal point, volume offset
- last AV position (AV1...4) and last programme
- tint
- socket configuration
- PIP position
- record programme and record timer
- Fan control
- Installation of external units
1.4 Memory contents CIC38091 (SAT Module)
- SAT ident, video data (deviation, H/V), audio frequency "High" and
"Low"
- SAT ident, Peri, finetuning, channel number
- audio frequency High/Low, video data (deviation, H/V)
10
- luminance, noise, TV standard, text/menu
- volume fine, sound peak
- station ident
- LNC frequency
1.5 Electronic Programme Lock (parental lock)
To cancel your personal code number enter "7 0 3 8 5 8 0" in this order.
1.6 EPROM Version Number
Press button " " to call up the "DIALOG CENTER" –> OK. Button "AUX"
shows the version number of the EPROM.
1.7 PIP Position (only with PIP Module)
Depress and hold the "PIP" button on the remote control handset and
switch on with the mains button to call up the PIP Mode.
Using the buttons
Using the buttons
Using the format button, the upper right/left and lower right/left position
of the PIP can be changed.
Store the position with "OK".
Note: VGA- or RGB signals cannot be inserted as a PIP picture.
1.8 Service Mode Programme (for fault finding on I
These error messages refer only to interferences on the I
is to modules or circuits which do not send an acknowledgement via the
I 2 C bus, e.g. no operating voltage supplied to the module, break in the
circuit path or I C interface defective.
2
1.8.1 I C Bus, IC Test
2
In this fault finding programme, the microprocessor CIC80050 scans
the individual modules or circuits connected to the I
indicates them as a countable pulse sequence at the LED of the
keyboard control unit.
Press and hold "P +" on the TV and switch on with the mains button.
The number of pulses indicates the defective module as shown in the
table.
Example:
µ
P.
red LED flashes quickly for 10s
yellow LED lights for 4s
green LED flashes (e.g. 2 times) = ten's place (2)
yellow LED lights for 4s
green LED flashes (e.g. 8 times) = unit's place (8)
Result:
With button "L+" on the TV it is possible to find out further defective
interfaces.
Designation
of IC
VPC (all types)
CIP3250
SDA5275
TEA6425
TEA6425
TEA6420
M24C16 (NVM)
SDA9280
SDA9362
TDA4780
2. Special Functions in the Dialog Center
2.1 Activating or Deactivating the Mains Economy Switch
Reach the "Mains economy sw." menu with button " " via "DIALOG
CENTER" –> "OK" –> "SPECIAL FUNCTIONS" –> "OK".
With the buttons
On activation of "Mains economy sw." the mains switch disconnects
the TV from the mains supply by pressing the button
control handset twice.
the horizontal position can be changed.
the vertical position can be changed.
2 C bus)
= 28
Number Defective
of Clocks Module/Integrated Circuit
1 Feature Box
2 Feature Box
7 Processor Module
13 Chassis (IC43570)
14 Chassis (IC43670)
16 Chassis
18, 19, 21-26 Processor Module
27 Feature Box
28 Feature Box
29 Chassis
select "off" or "1h...4h".
GRUNDIG Service
CUC 1931
C bus, that
2
2 C bus and
on the remote