JVC HV-32D25EUW Service Manual page 22

HV-32D25EUW
HV-32D25EJW
3.5 ADJUSTMENTS
3.5.1 CHECK ITEM
Mesuring
Item
instrument
B1 POWER Signal
SUPPLY generator
Check
DC voltmeter
Remote
control unit
VCO Check Remote
control unit
IF SERVICE MENU
1. VCO
2. ATT
1-2 : SELECT
VCO(CW)
MAIN
TOO HIGH
ABOVE REF
JUST REF
BELOW REF
TOO LOW
22
Test point Adjustment part
CN0S1 2. V/C -->
connector 1. CUT OF R
pin-1 (GND)
CN0S1
connector
pin-5 (B1)
[POWER & DEF
PWB]
1. IF -->
1. VCO
i : EXIT
**** MHz
SUB
The arrow position
mean AFC voltage level.
: EXIT
Description
(1) Receive any broadcast.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 1. CUT OF R.
(4) Press the [YELLOW] key to display a signal
horizontal line.
(5) Connect the voltmeter between 5pin (B1), and 1pin
(GND) of the connector CN0S1.
(6) Confirm that the voltage is DC185V
• Under normal conditions, no adjustment is required.
(1) Receive any broadcast.
(2) Select 1.IF from the SERVICE MENU.
(3) Select 1.VCO.
(4) Check the arrow position of MAIN between the
"ABOVE REF." and "BELOW REF." .
(5) Check the arrow position of SUB between the
"ABOVE REF." and "BELOW REF.".
2V.