AV-14FM
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, transformers
REMOTE CONTROL UNIT and the other is theand condensers) not shown in the adjustment items of this
conventional method using adjustment parts andservice adjustment.
components.7. Preparation for 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 setting
PICTURE MODE (VSM)BRIGHT
values.
TINT / COLOUR / BRIGHT /Refer to VSM PRESET on
3. Make sure that connection is correctly made to AC power
source.CONT / SHARPpage 25.
4. Turn on the power of the TV and measuring equipment forECO SENSOROFF
warming up for at least 30 minutes before staring adjustment.VNROFF
5. If the receive or input signal is not specified, use the mostBLUE BACKOFF
appropriate signal for adjustment.
MEASUREMENT INSTRUMENTADJUSTMENT ITEMS
AND FIXTURESAdjustment itemAdjustment item
1. DC voltmeter (or digital voltmeter)
DEFLECTION circuit
2. OscilloscopeB1 POWER SUPPLYadjustment
3. Signal generator (Pattern generator) [PAL / SECAM / NTSC]
4. Remote control unitFOCUS adjustmentVSM PRESET adjustment
IF circuit adjustmentPRESET adjustment
VIDEO/CHROMA circuitPURITY / CONVERGENCE
adjustmentAdjustment
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 :
" 1. IF eeeeeeeeeeeeeeeeeeeeeeFor entering/adjusting the setting values (adjustment values) of the IF circuit.
" 2. V/C eeeeeeeeeeeeeeeeeeeeFor entering/adjusting the setting values (adjustment values) of the VIDEO/CHROMA circuit.
" 3. DEFeeeeeeeeeeeeeeeeeeeeeeFor entering / adjusting the setting values (adjustment values)#of the DEFLECTION circuit.
" 4. VSM PRESET eeeeeeeeeeeeeFor setting the values of BRIGHT, STANDARD, and SOFT.
(VSM : video status memory)
" 5. PRESETeeeeeeeeeeeeeeeeeeThis is used when the PRESET MODE is adjusted. [Do not adjust]
" 6. TURBO TIMER eeeeeeeeeeeeFor quick setting the values of TIMER COUNT-adjustable not only by minutes but also by second.
If it is on, the time in TIMER mode changes from 1 minute into 1 second temporarily.
If you turn the TV power off, this setting becomes OFF automatically. (applicable to OFF TIMER,
ON TIMER, AUTO SHUTOFF). [Should be OFF]
12No. 51753 |
ACEC
