JVC AV-21QT4SJ Service Manual

SERVICE MANUAL

COLOUR TELEVISION

YA084B20053

AV-21QT4SJ

Supplementary

The following items for the AV-21QT4SJ was changed partly.
Therefore, this service manual describes only the items which differ from those of the AV-21QT4SJ service
manual.
For details other than those described in this manual, please refer to the AV-21QT4SJ service manual
(No.YA084, 2005/2).

DIFFERENCE LIST

PRINTED WIRING BOARD PARTS LIST

MAIN P.W. BOARD ASS'Y

Ref. No.

TU200 VE-30009637 VE-30033888 TUNER Non compatible

BEFORE AFTER

Part No.

PART NAME DESCRIPTION

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.YA084B

2005/3

SECTION 1

PRECAUTION

Please refer to "AV-21QT4SJ (No.YA084)" about this section.

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

Please refer to "AV-21QT4SJ (No.YA084)" about this section.

SECTION 3

DISASSEMBLY

Please refer to "AV-21QT4SJ (No.YA084)" about this section.

SECTION 4

ADJUSTMENT

4.1 SETTING VALUES OF OPTION ITEMS

When a previous TUNER (VE-30009637) is replaced by a new TUNER (VE-30033888), it should be adjusted to the setting values in
the table below. If the TUNER of the model with the new TUNER (VE-30033888) is replaced, there is no need for adjustment.

4.1.1 SETTING VALUE OF OPTINS ITEM

Make sure not to change the values that are not in the table below. If those values are changed, the unit will not operate normally.

Setting value

Item

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Option 111000111010001110

Option 120000001100000001

Option 130000011000000010

Option 141000010100001000

Option 151010101001010010

Option 160000100100001011

Option 171010001000000010

Option 180001101100011101

BEFORE AFTER

1-2 (No.YA084B)