Panasonic TC-14B10P, Service Manual

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TC-14B10P / TC-20B10P Service 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 “3”or “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 CHQ’s 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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