Service Modes - Philips H8 Technical Training Manual

SERVICE MODES

All of the adjustments in the set are performed
via the On-Screen Service mode. There are
three different Service Modes. The SDM
(Service Default Mode) allows Error Codes to
be read through an On-Screen menu or from
a blinking Power light. It also pre-sets certain
conditions and disables certain functions.
The next Service mode is the SAM (Service
Adjustment Mode). This mode is used to
align the set, adjust option settings, and read
and clear the error buffer.
The final mode is the CSM (Customer Service
Mode). This mode can be entered by the
Customer on instruction of the Service
Technician to read error codes.
Service Default Mode (SDM)
The Service Default Mode can be entered by
pressing 0-6-2-5-9-6-Menu, on the remote
control transmitter. The Service Default Mode
sets the following conditions:
Tuning Frequency is set to 61.25 MHz
(Channel 3).
Volume level set to 25%.
Other Picture and Sound settings set to
50%.
Timer, Sleep Timer, Parental Lock, and
Blue Mute disabled.
The SDM can also be entered by shorting
jumpers 9261 and 9262 while turning the set
On. Caution should be used when using this
procedure because the 5-volt protection is
disabled. After entering the SDM, the Error
Codes can be read by the blinking power
LED. The LED will blink the number of times
equal to the value of the error codes. After
the SDM has been entered, the LED will light
for 750 milliseconds, followed by a pause of
1500 milliseconds, followed by the number of
blinks equal to the error code. If more than
one error code is present, the procedure will
repeat itself for the next Error Code. When
all of the Error Codes have been displayed,
the LED will light for three seconds. The
procedure will then repeat itself.
Service Alignment Mode (SAM) (Figure
25)
The Service Alignment Mode is used to
read Error Codes, Reset Error Codes, Set
Option Codes, and perform Service
Alignments. Pressing 0-6-2-5-9-6-Status
on the remote control transmitter enters the
SAM. To save the Error Codes, remove
AC power to the set without turning it Off.
When power is reapplied and the set is
turned On, the SAM will still be active. Use
the Cursor Up-Down keys to select a
function in the menu. Press the Cursor
Right-Left keys to select a function or make
an adjustment. Under White Tone, there
are three sets of settings which are
Normal, Cool, and Warm. Normal set-
tings is for a normal Gray Scale and should
be selected when doing a White Balance or
Gray Scale adjustment. When the User
selects Cool, a slight Blue tint is added to
the picture. When Warm is selected, a
slight Red tint is added to the picture.
Refer to the Service Manual for the proper
alignment procedure.
To Save changes in SAM, return to the
main menu and turn the set Off from either
the Remote Control or the Front Keyboard.
Customer Service Mode (CSM)
The Customer Service Mode allows the
Customer to read the Error codes upon
instruction form the Technician.
The Customer Service Mode can be
entered by pressing the Mute button on the
Remote Control and any key on the set
Keyboard at the same time.
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