JVC AV-28WFT1EPG Service Manual page 21

ADJUSTMENTS
B1 POWER SUPPLY CHECK
Measuring | test point Adjustment part
instrument :
Check of B1 TP-91(B1)
Power Supply | Generator TP-E( 4)
[CNO0S on
DC voltmeter | POWER DEF
PWB]
Check of High | Signal
Generator
DC volunteer
FOCUS 1
FOCUS 2
[In FBT]
Adjustment of. Signal _
generator
FOCUS 2
FOCUS 1
FOCUS1(F1)
FOCUS2(F2)
SCREEN1(S1)
No. 51694
PO NOoarwn =
WO MOWNAAP WON =
AV-28WFT1EPG AV-28WFT1EIS
AV-28WFT1EPS AV-32WET1EPG
AV-28WFT1EKS AV-32WFTIEPS
AV-28WFT1EK AV-32WFT1EKS
Receive a any broadcast.
Push the "ZOOM" key and select the FULL mode.
Select 2. V/C from the SERVICE MENU.
Select 1. CUT OFF with Function UP / DOWN key.
Show one horizontal line with the 1 key.
Turn the SCREEN VR, the whole black screen display.
Connect a DC voltmeter to TP-91(B1) and TP-E( 4).
Make sure that the voltage is DC 144.5 +2.0V.
Receive a any broadcast.
Push the "ZOOM" key and select the FULL mode.
Select 2. V/C from the SERVICE MENU.
Select 1. CUT OFF with Function UP / DOWN key.
Show one horizontal line with the 1 key.
Turn the SCREEN VR, the whole black screen display.
Connect a DC voltmeter to CRT ANODE. 3!
Make sure that the voltage is DC 31.0kV _4 5xy-
Description
Receive a cross-hatch signal. Select FULL mode.
Make sure that when the screen is darkened, the lines remain
in good focus.
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