Philips PS1966C122, Техническая сервисная информация

Страница: 11 / 79

Option AO : Audio Out (Fixed/Variable)
Function: Set audio output type (where present)
Values:
OFF = Fixed audio out
ON = Variable audio out (always on)
Option ST : Sound Type
Function: Set the sound type
Values: BG
PAL system
I PAL system
DK PAL system
M Default for USA
Option SB : Sound Board
Function: Set the sound board configuration
Values:
DB = DBX/SAP (BTSC)
EC = BTSC stereo (No SAP)
MA = Mono All
MS = BiSonic (Mono from tuner, Stereo from A/V jacks)
Service Alignment Mode (SAM)
1. The Service Alignment Mode (SAM) is used to make tuning adjustments, align the white tone, adjust
the picture geometry, and make sound adjustments.
2. To enter the Service Alignment Mode (SAM), press 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.
SAM can also be entered by pressing the Channel Down and Volume Down keys on the local
keyboard simultaneously while in SDM mode. When Service Alignment Mode is entered, the text
"SAM" will be displayed in the top right corner of the screen.
3. When Service Alignment Mode is entered, service unfriendly modes are disabled.
The following volatile SAM item values are set:
♦
AKB = 0
♦
VSD = 0
♦
AFW = 275 kHz
♦
SBL = 0
4. When the unit is operating in Service Alignment Mode, all normal on-screen displays are suppressed
and replaced by a special service display. The first screen seen upon entering SAM is the ”top level
SAM menu.“ The service technician must return to the top level SAM menu before exiting with a
power-off command. A sample SAM top level menu display is shown below.