JVC AV-29FH1BUG Service Manual page 9

4.4 ADJUSTMENT PROCEDURE
4.4.1 LOCAL OSCILLATOR ADJUSTMENT
Measuring
Item
instrument
AFT Signal
adjustment generator
Remote
control unit
I502
I501
L150
I101
I601
I702
TUNER
4.4.2 AGC
Measuring
Item
instrument
AGC Signal
adjustment generator
Remote
control unit
4.4.3 FOCUS ADJUSTMENT
Measuring
Item
instrument
FOCUS Signal
adjustment generator
Remote
control unit
FBT
Test point Adjustment part
AFT
AFT coil : (L150)
[MAIN PWB]
MAIN PWB
FBT
Test point Adjustment part
AGC
Test point Adjustment part
FOCUS VR
[On FBT]
FOCUS
SCREEN
Description
(1) Receive a colour bar pattern signal.
(2) The frequency of the signal carrier must be accurate
(Max +/-10kHz deviation from the nominal channel
frequency).
(3) Select < AFT >.
(4) Adjust the AFT coil (L150) to bring the cursor to cen-
tral poison.
Description
(1) Receive a colour bar pattern signal.
(2) Select < AGC >.
(3) Press the [OK] key and wait until AGC level stabilize
to the optimum value.
Description
(1) Receive a cross-hatch signal.
(2) Adjust the FOCUS volume on the FBT to have the
best resolution on the screen.
(No.YA008)1-9