Reading Error Codes; Option Bytes - Philips 27G7 Service Manual

Reading Error Codes

Error codes are displayed in the following ways:
1. By SAM, SDM, or CSM display
2. By blinking Power LED
1. If the on screen display is working, enter SAM, SDM or CSM and read the error buffer display.
2. If the on screen display is not working, read the error code from the Power LED:
a. The number of blinks represents the number of the most recent error (the error in the "left" position)
b. The error code can be determined by counting the "off" blinks
Note: Some indications take 30 seconds or longer to appear on the LED.
3. Displayed error codes are saved by removing the ac power. Displayed error codes are erased by pressing
the power button on the remote control or local keyboard.

Option Bytes

The next line of the display (OPT 85
particular model. These values can be changed by changing feature bits or entering new option byte values in
the Options sub-menu of SAM.
Refer to the Chassis Feature Listing to see the values for Option Bytes 1 through 7. These values can be used
to set the feature package for a particular model.
Sub-menus
The bottom three lines of the top level SAM menu represent the SAM sub-menus. All sub-menus cannot be
displayed on the screen at once. Other sub-menu items can be displayed by pressing the Menu Down and
Menu Up keys on the remote control.
Note: All sub-menu items may not be available in all models. The presence of a particular sub-menu item may
depend on the hardware and software features of the model.
Erase Buffer Sub-Menu
Allows manual erasure of the error buffer.
1. Enter the Service Alignment Mode (SAM) by pressing the following key sequence on the remote control
transmitter:
0-6-2-5-9-6-Status
Do not allow the display to time out between entries while keying the sequence.
2. From the top level SAM menu, use the Menu Up/Down keys to highlight the ERASE BUFFER sub menu.
3. To erase the error buffer, press the Menu Left or Menu Right key. The error buffer will display all zeros.
The error buffer is now cleared.
139 47 222 224 0 0) shows the option byte values for the