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TC-14B10P / TC-20B10PService Adjustments and Calibrations
METER
ELETROSTÁTICO
20 INCHES 14 INCHES
26,5 + 1,0
_
1,5KV 24,5 + 1,0
_
1,5KV
RESISTIVO
26,0 + 1,0
_
1,5KV 24,0 + 1,0
_
1,5KV
1.2- Press 5 at the remote control to make appear a white
line for screen calibration. In order to make tHe line
disappear press 5 again.
DAC DIRECT TABLE
MEMORY - DIRECT ACCESS METHOD
1.1- To obtain direct access to memory go to item CHQ1,
press simultaneously VOL(
_
) at the TV set and mute
at the remote control.
1.2- To alternate between memory positions press 3or 4.
1.3- To change the contents of each memory positions
press VOL(+) or VOL(
_
), the letter will remain red. To
memorize the changes press 0, the letter will go
back to white.
1.4- To exit memory press 1 or 2 to alternate between
the CHQs or press N to exit SERVICE MODE .
DATA MEMORY ON THE SCREEN
EEPROM MEMORY MAP
ELECTRICAL INSPECTION
1- EQUIPMENTS REQUIRED
1.1- High voltage meter, range to 30kv (eletrostatic or
resistive)
1.2- Voltmeter, range 30VDC, 150 VDC and 300VAC
1.3- Voltmeter RMS
1.4- DY,CY,CRT
2- PREPARATION
2.1- Position controls on the following positions:
NORMAL IMAGE....ADJUSTED
VOLUME.......... MINIMUM
TV/VIDEO............ TV
POT SCREEN................CENTER
POT FOCUS...........BEST POINT ( VISUAL)
3- VOLTAGE INSPECTION
3.1- Adjust AC input voltage to 110V.
3.2- Turn on the S801 switch.
3.3- Apply a CROSS HATCH pattern.
3.4- Adjust controls SUB BRIGHT ( SUB BR) in CHQ5
and SCREEN to obtain corrente de feixe zero.
3.5- Verify the voltage on the points below:
3.6- Position SCREEN and SUB BRIGHT ( SUB BR) to a
level where image is visible.
INSPECTION OF THE DEFLECTION
CIRCUITS AND PRE-ADJUSTMENTS
1- REQUIRED EQUIPMENTS.
1.1- High voltage meter, range up to 30Kv (eletrostatic or
resitor).
2- PROCEDURES.
2.1- Apply a PHILIPS pattern.
2.2- Select VERTICAL HEIGHT (V ALT) in CHQ3.
2.3- Adjust the heigth to obtain a correct image.
2.4- Apply a CROSS HATCH pattern.
2.5- Adjust BRIGHT, SUB BR, in CHQ5, SCREEN
minimum to obtain current=0
2.6- Measure high voltage with the voltmeter and verify if
is within the limits below:
VOLTAGE
90V ± 2,0V
TEST POINT METER
C823 (+) 300V
190V ± 15V E33 - PIN 1 300V
22V ± 2,0V D850 (K) 30V
44V ± 2,5V D852 (K) 50V
9V ± 1V TPE9 30V
5V ± 1V TPE10 30V
6,3 V
RMS
± 0,24V
Y33 - PIN 4
30V
RMS
180V ± 15V E33 - PINO 1 300V
For 14 models only
ENGLISH
CHQ1 CHQ2 CHQ3 CHQ4 CHQ5
OP1 SUB-COR HC AFT B-CUT
OP2 COR VC VID G-CUT
OP3 SUB-NITIDEZ V ALT RF R-CUT
OP4 NITIDEZ --- B-DR
OP5 SUB-CONTRAST R-DR
OP6 CONTRAST SUB BR
--- SUB-BRIGHT BRIGHT
--- BRIGHT ---
--- SUB-MATIZ ---
--- MATIZ ---
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