AV-A14M3
AV-A14T3
AV-A14AU3
AV-1413EE
SERVICE ADJUSTMENTS
BEFORE STARTING SERVICE ADJUSTMENT
1. There are 2 way of adjusting this TV: One is with the6. Never touch parts (such as variable resistors,
REMOTE CONTROL UNIT and the other is thetransformers and condensers) not shown in the
conventional method using adjustment parts andadjustment items of this service adjustment.
components.7. Preparation for user adjustment (presetting):
2. The setting (adjustment) using the REMOTE CONTROLUnless otherwise specified in the adjustment items, preset the
UNIT is made on the basis of the initial setting values.following functions with the REMOTE CONTROL UNIT.
The setting values which adjust the screen to the
optimum condition can be different from the initial settingz User setting position
values.
PICTURE MODE (VSM)BRIGHT
? For initial setting values not shown in each item of the
VNROFF
adjustments, refer to the ?INITIAL SETTING VALUE OF
SERVICE MENU?.TINT / COLOUR
CENTER
3. Make sure that connection is correctly made to AC powerBRIGHT / CONT. / SHARP
source.
BLUE BACKOFF
4. Turn on the power of the TV and measuring instrument for
warming up for at least 30 minutes before staring adjustment.OFF TIMEROFF
5. If the receive or input signal is not specified, use the mostAUTO SHUTO OFFOFF
appropriate signal for adjustment.
MEASURING INSTRUMENTADJUSTMENT ITEMS
AND FIXTURESAdjustment itemAdjustment item
1. DC voltmeter (or digital voltmeter)
2. OscilloscopeB1 POWER SUPPLYDEF. circuit adjustment
3. Signal generator (Pattern generator) [PAL / SECAM / NTSC]
4. Remote control unitFOCUS adjustmentVSM PRESET setting
IF circuit adjustment
PRESET adjustment
V/C (Video / Chrom) circuitPURITY, CONVERGENCE
adjustment
BASIC OPERATION OF SERVICE MENU
1. TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.
2. SERVICE MENU ITEMS
With the SERVICE MENU, various settings (adjustments) can be made, and they are broadly classified in the following items of settings :
z 1. IF eeeeeeeeeeeeeeeeeeeeee This mode adjusts the setting values of the IF circuit.
z 2. V/C eeeeeeeeeeeeeeeeeeee This mode adjusts the setting values of the VIDEO/CHROMA circuit.
z 3. DEF. eeeeeeeeeeeeeeeeeeeee This mode adjusts the setting value of the DEFLECTION circuit.
z 4. VSM PRESETeeeeeeeeeeeee For setting the values of STANDARD, SOFT and BRIGHT. (VSM : video status memory)
z 5. PRESETeeeeeeeeeeeeeeeeee This mode adjusts the setting value of the RF circuit (Do not adjust).
z 6. TURBO TIMEReeeeeeeeeeee For quick setting the value of TIMER COUNT adjustable not only by minutes but also by second.
(Should be OFF)
? If it is ON, the timer in TIMER mode changes from 1 minute into 1 sec temporarily.
(It is easier to checks the Operation of TIMER)
If you turn the TV power off, this setting becomes OFF automatically.
No. 5166913 |
ACEC
JVC
