Service Test Program - Philips HTS3500S 98 Service Manual

EN 10 4.
4.

Service Test Program

To start service test program
open the tray with remote control
or front panel key, while plugging
in the mains cord press 2, 5 8 on
remote control, the tray will close
by itself and the set will display
shown "S-Vxx-yy"
Display shows
"SERVICE"
followed by ROM version
"S-Vxx-yy"
Main Menu
Display Test
key
"DisplayTest"
triggered?
y
Activate and display
"Pattern1"
key
"DisplayTest"
triggered?
y
Activate and display
"Pattern2"
key
" "
triggered?
y
HTS3500S Service Test Program
S refers to Service Mode
V refers to Version
xx refers to Software version number of BEA
(counting up from 01 to 99)
yy refers to Software version number of Front uP
(counting up from 01 to 99)
4.1
Purpose:
This test is used to check the driving circuits, the display and whether there are
any short-circuits, open-circuits or any other defects.
Player:
Following display patterns are used to test the display and its connections to μP.
Pattern 1:
- to check the open-circuits
n
Pattern 2:
- to check the short-circuits on Data port
Receiver:
n
Following display patterns are used to test the display and its
Pattern 1:
- to check the open-circuits
Pattern 2:
- to check the short-circuits on Data port
n
TEST
EEPROM FORMAT
TEST
ROTARY
ENCODER TEST
LEAVE SERVICE
TEST PROGRAM
Display Test
Default: All display control pins are ON
Alternate display control pins are on (Test Pattern: 0x55)
Default: All display control pins are ON
Alternate display control pins are on (Test Pattern: 0x55)
Activated with
to Exit
Volume
Knob
Disconnect
mains cord
LX8300SA & LX8320SA & LX8500W_Service Test Program_dd wk0429
connections to μP.
ACTION
Load default data. Display shows "NEW".
Caution!
All presets from the customer will be lost!!
Display shows value for 2 seconds.
Volume values increases or decreases in
steps of 1
until 0 (VOL MIN) or 40 (VOL MAX) is
reached.