Philips PS1966C122, Technical Service Data

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All other On Screen Display (except highlighted items in SDM or SAM) will be in red.
6. It will be memorized in the EEPROM that the TV set is in SDM or SAM. This is necessary because
the TV must show up in SDM or SAM again after an ac power interrupt.
7. When the television is in SAM or SDM, all normal features (such as volume control and direct
channel access) are available.
EEPROM Replacement or Defective EEPROM
After replacing a EEPROM (or with a defective/no EEPROM) default settings will be used that enable the
set to start up and that allow access to the Service Default Mode and Service Alignment Mode.
Service unfriendly modes
In the service modes, a number of modes/features are ignored since they interfere with diagnosing or
repairing a set. These are ”service unfriendly modes.“
”Ignoring“ means that the event that is triggered is not executed; the setting remains unchanged
(Example: Timer OFF: 8:00 PM; the set will not switch OFF in service mode at 8:00PM, but the setting will
remain).
The service unfriendly modes are:
•
(Sleep) timer
•
Blue mute
•
Auto switch off (when there is no video signal identified)
•
Hotel or hospital mode
•
Smart lock or blocking by V-chip
•
Skipping and/or blanking of ”Not Favorite“ channels
•
Automatic storing of Personal Preset settings
•
Automatic user menu time-out (menu switches back or OFF automatically)
Service Default Mode (SDM)
1. The Service Default Mode (SDM), set the option codes and bytes of the set, and display the error
codes (the Power LED begins blinking procedure for error code display, if errors are detected). SDM
also overrides software protections.
The Service Default Mode (SDM) must be used when taking voltages and waveforms.
2. To enter the Service Default Mode, press the following key sequence on the remote control
transmitter:
0-6-2-5-9-6-Menu
Do not allow the display to time out between entries while keying the sequence.
SDM can also be entered by pressing the Channel Down and Volume Down keys on the local
keyboard simultaneously while in SAM mode.
When Service Default Mode is entered, the text "SDM" will be displayed in the upper right corner of
the screen.
3. When Service Default Mode is entered, the Power LED will begin blinking to display any detected
error codes, the set automatically tunes to Channel 3 (61.25 MHz), and service unfriendly modes are
disabled. All customer controls are set to predetermined values.
4. When the unit is operating in Service Default Mode, all normal on-screen displays are suppressed
and replaced by a special service display. A sample SDM display is shown below.