Service manual

CM150 2-1 GA - INSTALLER MENUS
INSTALLER’S MENU
ACCESS
Access the Service Menu by using the remote control or
the keyboard on the front of the set.
With the remote: Press and hold MENU key until user
menu displays disappears, then press 9, 8, 7, 6 and
ENTER. This will access the 03 H Pos item of the Service
Menu.
Models with 6 button Keyboard: Press and hold Menu
until User Menu display disappears. Immediately press
Volume Up and Channel Down simultaneously.
Models with 10 button keyboard: Press and hold MENU
until the user menu disappears. Immediately press the
Adj. Right and Channel Up keys simultaneously.
NOTE: Entry into and exit from the Service Menu will
automatically unblock all parental control.
To exit Service Menu, press ENTER key. Entry into and
exit from the Service Menu, will automatically un-block
all parental Control.
DISPLAY
The GA Chassis uses three different microcontrollers
(IC6000): 221-01164-01, 221-01164-02, or 221-
01305-01. When the Factory menu is accessed, the
opening display screen will show the microcontroller on
the top line. It will look as shown in Figure 1 or 2. The
bar at the top indicates the part number of the software
in the set. The bar at the bottom has a date and number.
The date on the left indicates the date the module went
through the factory. The number on the right indicates
the module has been tested.
The first seven menu items 00 through 06 will be the
same for each micro. Items 07 through the end will be
different on each micro.
When Service Menu appears, it will always appear on
third item H Pos. Use SELECT key to toggle through all
of the adjustments.
1164-01/02 MICRO
00 F MODE: (Factory Mode) Use Select key to select
item #00, which is the first item in the Service Menu,
the Factory mode. This item is used by the factory
when the module is being tested. In the field, this
item should always be left “off”. Zero is “Off”!
When the factory mode is Off, only the first seven
items in the Service Menu can be accessed. When the
factory mode is set to 1, all menu items will be avail-
able. Also they will appear on the screen one at a
time at the top left of the screen, as shown in Figure
3.
If the factory mode is “On”, a pair of dashes will ap-
pear at the top of the Customer Set Up Menu. On
other menus a number corresponding to the setting
of a high lighted item will be shown. This is a quick
way a technician can tell that the factory mode is on.
Other unusual things also happen when the factory
mode in “On”, for example, the AC power on feature is
always enabled regardless of the setting of “AC On” in
the Service Menu. The set will automatically come On
when AC is applied. In addition, when the factory
mode is “On”, the Service Menu can be accessed on
10 button key boards by pressing simultaneously the
RIGHT ADJ. and CHANNEL UP buttons. On 6 button
keyboards press VOLUME UP and CHANNEL DOWN but-
tons. Otherwise the hand control must be used to re-
enter the Service Menu to turn the factory mode off.
The factory mode can also be turned off by adjusting
the setting of the clock, or running the Auto Pro-
gram feature in the customer Set Up menu.
01 Pre Px: Used to store the customer menu adjust-
ments in the non-volatile memory of the EAROM. Set-
tings for Contrasts, Brightness, Color and Tint are
stored in this manner. 0 is custom and 1 is Pre-set
stored.
02 V Pos: Moves On Screen Displays vertically. Range is
0 - 24. Generally set at 10.
INSTALLERS MENU
SECTION 2
Figure 1
1164-01/02 Micro opening
display.
Figure 2
1305 Micro opening display.
Figure 3
1164-01/02 Factory mode on
opening display.