Panasonic TH-58PF12UK, Service Manual

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TH-58PF12UK
10.1.2. Initialization Pulse Adjust
1. Set Aging pattern (white pattern signal) by IIC mode.
2. Set the picture controls as follows.
Picture menu: Standard
Picture: +25
Aspect: Full
3. Connect Oscilloscope to TPSC1 and adjust VR16601 for 250V ± 10V.
10.1.3. P.C.B. (Print Circuit Board) exchange
10.1.3.1. Caution
1. To remove P.C.B., wait 1 minute after power was off for discharge from electrolysis capacitors.
10.1.3.2. Quick adjustment after P.C.B. exchange
Adjust the following voltages with the multimeter.
*See the Panel Label.
Caution
Absolutely do not reduce Vsus voltage below Ve not to damage the P.C.B.
Test Point Volume Level
TPSC1 (SC) VR16601 (SC) 250V ± 10V
at 100
µ
s
period on the down slope.
P.C.B. Name Test Point Voltage Volume Remarks
P Board Vsus TPVSUS (SS) Vsus ± 2V VR251(P) *
SC Board Vad TPVAD (SC) -165V ± 2V VR16600 (SC)
Vscn TPVSCN (SC) Va145V±4V
GND_base: -20V±6V Fixed
Vset TPVSET (SC) 290V ± 9V Fixed
SS Board Ve TPVE (SS) Ve ± 2.5V Fixed *
D, DS, DN Board White balance and Sub brightness for NTSC, PAL, HD, PC and 625i signals
DN Board Set Market Select Number to correct destination by MS mode (See chap. 6.1.4)