JVC AV-29FH1BUG, Service Manual

Page: 8 / 48

1-8 (No.YA008)
SECTION 4
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION
(1) There are 2 ways of adjusting this TV : One is with the REMOTE CONTROL UNIT and the other is the conventional method
using adjustment parts and components.
(2) Make sure that connection is correctly made AC to AC power source.
(3) Turn on the power of the TV and measuring instruments for warning up for at least 30 minutes before starting adjustments.
(4) If the receive or input signal is not specified, use the most appropriate signal for adjustment.
(5) Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service
adjustment.
4.2 MEASURING INSTRUMENT AND FIXTURES
(1) DC voltmeter (or digital voltmeter)
(2) Signal generator (Pattern generator : PAL / SECAM / NTSC)
(3) Remote control unit.
4.3 BASIC OPERATION OF SERVICE MENU
4.3.1 TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.
4.3.2 SERVICE ADJUSTMENT ITEMS
There are 23 adjustment items.
4.3.3 HOW TO ENTER SERVICE MENU
(1) Press [ i ](Information) key and [ ](Muting) key same time
then enter SERVICE MENU.
(2) Adjust sharpness to minimum and exit all menus.
(3) Within 2 seconds press the key sequence [RED]-[GREEN]-
[MENU]key.
4.3.4 SELECTION OF MENU SCREEN
(1) Press [ ] / [ ] keys of the REMOTE CONTROL UNIT and
select adjustment item.
4.3.5 SETTING VALUE OF ADJUSTMENT ITEMS
(1) Press [ ] / [ ] keys of the REMOTE CONTROL UNIT and
setting value of adjustment items.
4.3.6 HOW TO EXIT SERVICE MENU
(1) Press [MENU] key, then exit SERVICE MENU.
No. Adjustment item No. Adjustment item
1 HOR CEN 13 PARABOLA
2 RED GAIN 14 HOR WIDTH
3 GRN GAIN 15 CORNER T
4 BLUE GAIN 16 CORNER B
5 RED BIAS 17 HOR PARAL
6 GRN BIAS 18 V. LINEAR
7 AGC LEVEL 19 EW TRAPEZ
8 G2-SCREEN 20 S CORRECT
9 AFT 21 VERT CENT
10 OPTION1 22 VERT SIZE
11 OPTION2 23 SHIPPING
12 AVL
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