Panasonic TC-54PS14 Service Manual - Page 26
Initialization Pulse Adjust, P.C.B. Printed Circuit Board exchange, 1.3.1., Caution, 1.3.2., Quick
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8.1.2. Initialization Pulse Adjust 1. Input the White signal to plasma video input. 2. Set the picture controls as follows. Picture menu : Vivid Normal : Set Aspect : Full 3. Connect Oscilloscope to TPSC1 (SC). Check the voltage (T2) at 100μs period on the down slop. Test point T2 TPSC1 (SC) Volume VR16601 (SC) Level 250 V ± 10 V 8.1.3. P.C.B. (Printed Circuit Board) exchange 8.1.3.1. Caution 1. To remove P.C.B., wait 1 minute after power was off for discharge from electrolysis capacitors. 8.1.3.2. Quick adjustment after P.C.B. exchange Adjust the following voltages with the multimeter. P.C.B. P Board SC Board A Board Name Test Point Voltage Volume Vsus TPVSUS (SS) Vsus ± 2V VR251 (P) * Vad TPVAD (SC) - 175V ± 2V VR16600 (SC) White balance and Sub brightness for NTSC, PAL, HD, PC and 625i signals *See the Panel label. Caution: Absolutely do not reduce Vsus below Ve not to damage the P.C.B. Remarks 26