JVC AV-32X37SUE Service Manual page 19

3.5 ADJUSTMENTS PROCEDURE
3.5.1 CHECK ITEM
Measuring
Item
instrument
B1 POWER Signal
SUPPLY generator
check
DC voltmeter
Remote
control unit
HIGH VOLTAGE Signal
check generator
HV voltmeter
Remote
control unit
IF VCO Remote
check control unit
IF SERVICE MENU
1. VCO
2. ATT
1-2 : SELECT
VCO(CW)
TOO HIGH
ABOVE REF
JUST REF
BELOW REF
TOO LOW
Test point Adjustment part
X connector [2.V/C]
TP-91(B1) 1.RGB BLK
TP-E( )
[POWER DEF
PWB]
CRT anode [2.V/C]
1.RGB BLK
Chassis GND
[1.IF]
1.VCO
Do not move
i : EXIT
**** MHz
i : EXIT
Description
(1) Receive a any broadcast.
(2) Select the FULL mode.
(3) Select 2. V/C from the SERVICE MENU.
(4) Select 1. RGB BLK.
(5) Press the [FUNCTION + (
screen (Black screen).
(6) Connect a DC voltmeter to TP-91(B1) and TP-E( ).
(7) Make sure that the voltage is DC139.9
(8) Press the [FUNCTION - (
menu.
(1) Receive a any broadcast.
(2) Select the FULL mode.
(3) Select 2. V/C from the SERVICE MENU.
(4) Select 1. RGB BLK.
(5) Press the [FUNCTION + (
screen (Black screen).
(6) Connect a HV voltmeter to CRT ANODE and
chassis GND.
(7) Make sure that the voltage is DC 31.0kV (+1kV / -
1.5kV).
(8) Press the [FUNCTION - (
menu.
• Under normal conditions, no adjustment is required.
• It must not adjust without broadcast signal.
(1) Select 1.IF from the SERVICE MENU.
(2) Then select 1.VCO from the 1.IF.
(3) Receive any broadcast.
(4) Check the arrow (<--) position between the ABOVE
REF. and BELOW REF.
AV-32X37SUE AV-32X37HKE
AV-32X37HIE AV-32X35HUE
AV-32X35HKE AV-32H35SUE
)] key to find the cut off
±
2.0V.
)] key to return to service
)] key to find the cut off
)] key to return to service
(No.52107)1-19