No. 52005
AV-27F703
AV-27F713
AV-27F803
12
SERVICE ADJUSTMENTS
ADJUSTMENT PREPARATION
1. You can make the necessary adjustments for this unit with
either the Remote Control Unit or with the adjustment tools
and parts as given below.
2.
Ad justment with the Remote Control Unit is made on the
basis of the initial setting values, however, the new setting
values which set the screen to its optimum condition may
differ from the initial settings.
3. Make sure that AC power is turned on c orrec tly.
4. Turn on the power for s et and test equipment before use, and
start the adjustment procedures after waiting at least 30 minutes.
5. Unless otherwise s pec ified, prepare the most suitable reception
or input signal for adjustment.
6.
Never touch any adjustment part
which are not specified in the
list for this adjustment - variable res istors, transformers, initial
setting value, etc.
7. Pres etting before adjustment.
Unless otherwise spec ified in the adjustment instructions, preset
the following functions with the remote c ontrol unit:
User menu preset value
MENU ITEM
PRESET
VIDEO STATUS
STANDARD
BASS, TREBLE, BALANCE
CENTER
HYPER SURROUND
OFF
TINT, COLOR,
PICTURE, BRIGHT , DETAIL
CENTER
MTS
STEREO
ADJUSTMENT EQUIPMENT
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
3. Signal generator (Pattern generator)
［
NTSC
］
4. Remote control unit
5. TV audio multiplex signal generator.
6. Frequenc y counter
ADJUSTMENT ITEMS
%
CHECK OF B1 POWER SUPPLY
%
ADJUSTMENT OF VIDEO / CHROMA CIRCUIT
%
ADJUSTMENT OF VCO
WHITE BALANCE(High Light & Low Light) adjustment
MAIN VCO adjustment
PIP WHITE BALANCE(High Light) adjustment
SUB VCO adjustment
SUB BRIGHT adjustment
RF. AGC adjustment
SUB CONTRAST adjustment
%
FOCUS adjustment
SUB COLOR adjustment
%
ADJUSTMENT DEF CIRCUIT
SUB TINT adjus tment
V. HEIGHT / V. CENTER(4:3) adjustment
%
ADJUSTMENT OF MTS CIRCUIT
V. HEIGHT / L. LIN(16:9) adjustment
MTS INPUT LEVEL adjustment
H. POSI, H. SIZE & SIDE PIN [ (4:3) &(16: 9) ] adjustment
MTS SEPARATION adjustment
PIP DISPLAY POSI adjus tment
%
HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
DISPLAY
(RM-C325G)
FUNCTION
▼
/
▲
POWER
NUMBER
SLEEP
TIMER
VIDEO
STATUS
EXIT
PIP OFF
FUNCTION
/
MUTING
MEMORY
