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SERVICE MODE
1.This mode uses the standard rernote cortrol. The Service Mode is activated by entering the folleing rernote- control sequence :
(1) SLEEP ---> FACTORY
(2) STAND - BY ----> P.STD ----> HELP ----> SLEEP -----> POWER ON.
2. The "SERVICE (FACTORY) "meaasge will be displayed. The Service Mode has four componets : Adjustment, Tset Pattern, Option Bytes and Reset.
3.Access the Adjustment Mode by pressing the"VOLUME" keys (up or Dowe).
4.Selection sequences for the PAL system :
DOWN or UP key :
AGC. > VCO > SBT > SCT > SCR > SC > RG >
GG > BG > CDL > BLU > PSL > PVS > PVA > PHS
5.Selection sequences for the NTAC system :
DOWN or UP key :
AGC. > VCO > SBT > SCT > SCR > SC > RG >
GG > B > CDL > BLU > NSL > NVS > NVA > NHS
6.The VOLUME key increase or decrease or adjrstment values, (stored in the nonvolatile memory when Adjustment Mode is cancelled).
Cancel the Adjustment Mode by re - pressing the " FACTORY" or Power OFF .
Main Adustment Parameter
| Table 4 - 1 Main Ajustment Parameter (Zilog, Phlips 11 - com) |
| FUNCTION |
OSD ABBREVIATION |
RANGE |
INITIALL DATA |
REMARKS |
| AUTO GAIN CONTROL |
AGC |
O-63 STEP |
32 |
|
| SUB BRIGHT |
SBT |
O-23 STEP |
7 |
| SUB CONTRAST |
SCT |
O-23 STEP |
7 |
| SUB COLOR |
SCR |
O-23 STEP |
13 |
| RED DRIVE GAIN |
RG |
O-63 STEP |
32 |
| GREEN DRIVE GAIN |
GG |
O-63 STEP |
32 |
| BLUE DRIVE GAIN |
BG |
O-63 STEP |
32 |
| PSL VERTICAL SLOPE |
PSL |
O-63 STEP |
20 |
| PAL VERTICAL SHIFT |
PVS |
O-63 STEP |
32 |
| PAL VERTICAL AMPLITUDE |
PVA |
O-63 STEP |
45 |
| PAL HORIZONTAL SHIFT |
PHS |
O-63 STEP |
32 |
| NTSC VERTICAL SLOPE |
NSL |
O-63 STEP |
20 |
| NTSC VERTICAL SHIFT |
NVS |
O-63 STEP |
32 |
| TSC VERTICAL AMPLTUDE |
NVA |
O-63 STEP |
45 |
| NTSC HORIZONTAL SHIFT |
NHS |
O-63 STEP |
32 |
VOLTAGE CONTROL
OSCILLATOR |
VCO |
O-128 STEP |
64 |
| S - CORRECTION |
SC |
O-63 STEP |
32 |
| TTX SUB - CONTROL |
TSS |
O-63 STEP |
16 |
| CATHODE DRIVE LEVEL |
CDL |
O - 7 STEP |
3 |
TDA8842 |
| BLUE STRETCH MODE |
BLU |
O - 3 STEP |
2 |
OTE : PVS, PVA, PHS, NVS , NVA NHS parameters must be aligned using both the 50 Hz and 60 Hz vertical - field rates. |
