JVC AV-48P777/H Service Manual page 22

4.5 SERVICE MODE
4.5.1 BASIC OPERATION OF SERVICE MODE
Operate the SERVICE MODE with the REMOTE CONTROL UNIT.
4.5.1.1 HOW TO ENTER THE SERVICE MODE
(1) Set to "0 minutes" using the [SLEEP TIMER] key.
(2) While "0 minutes" is displayed, press the [VIDEO
STATUS] key and [DISPLAY] key simultaneously.
(3) Enter the SERVICE MODE (Fig.1)
SERVICE MENU SCREEN
Service Menu Service Menu
1.Digital Service 1.Digital Service
2.T 2.TV-Micro Servic -Micro Service
3.Co 3.Conver Servic er Service
4.Diagnostics 4.Diagnostics
4.5.1.2 HOW TO EXIT THE SERVICE MODE
Press the [ MENU ] key to exit the SERVICE MODE.
4.5.1.3 HOW TO STORE OF SETTING VALUE
When adjustment is completed, press the [MUTING] key to
memorize the adjustment value.
NOTE:
If not to do it, adjustment data is not memorized to the memory
IC. And if exit the adjustment mode before memorize the data,
the adjustment value which you change is canceled.
1-22 (No.YA455)
Fig.1
4.5.1.4 SERVICE MODE SELECT KEY LOCATION
TV/CATV
switch
TV CATV VCR
DISPLAY
SLEEP
TIMER DISPLAY
SLEEP
TIMER
THEATER PRO
VIDEO STATUS
VIDEO
STATUS
ASPECT
SUB CH
FAVORITE ML/MTS SOUND
MUTING
MUTING
VOL
–
VOL -
MENU
VCR CHANNEL
MENU
PREV NEXT
REW
REC
OPEN/CLOSE
VCR/DVD
switch
POWER
DVD
POWER
INPUT
C.C.
1 2 3
NUMBER
4 5 6
7 8 9
TUNE RETURN+
0
/TV
GUIDE
CH +
OK
CH +
VOL +
VOL
+
BACK
CH –
BACK
VCR/DVD
CH -
POWER TV/VCR
PLAY FF
STOP PAUSE
STILL/PAUSE
RM-C1272G
TV