AV-21D81
AV-20N81
AV-16N81
AV-16N81G
REPLACEMENT OF MEMORY ICs
1. MEMORY ICs
This model uses memory ICs. This memory IC data are for proper operation of the video and deflection circuits.
When replacing memory ICs, be sure to use ICs written with the initial values of data.
2. PROCEDURE FOR REPLACING MEMORY ICs
SERVICE MENU
(1) Power off
Switch the power off and disconnect the power plug from the wall outlet.1.IF 2.V/C
(2) Replace ICs3.VSM PRESET
Be sure to use memory ICs written with the initial data values.
(3) Power on1-3 SELECT DISP : EXIT
Connect the power plug into the wall outlet and switch the power on.****************************************************.************
*** ** ***** ** ***** ** ***** ** **** ***** ***** ***** ***
(4) Check and set SYSTEM CONSTANT SETFig.1
It must not adjust without adjustment signals.
1) Press the DISPLAY key and the PICTURE MODE key of the REMOTE
CONTROL UNIT simultaneously.
2) The SERVICE MENU screen of Fig. 1 will be displayed.SYSTEM CONSTANT-????
3) While the SERVICE MENU is displayed, again press the DISPLAY key and
PICTURE MODE key simultaneously, and the SYSTEM CONSTANT SET SYSTEM CONSTANT SET 1/3
screen of Fig. 2 will be displayed.1.INCH: 21
4) Check the setting values of the SYSTEM CONSTANT SET of Table 1 If the2.COLOUR: MULTI
3.VIDEO INPUT : 1
value is different, select the setting item with the MENU U/�key, and set4.ECO SENSOR : YES
5.SUPER BASS : NO
the correct value with the MENU - / + key.
5) Press the DISPLAY key twice, and return to the normal screen.: SELECT
: OPERATEDISP : EXIT
(5) Receive channel of setting
Refer to the OPERATING INSTRUCTIONS and set the receive channelsSYSTEM CONSTANT-����
(channels preset) as described
(6) User Setting
SYSTEM CONSTANT SET 2/3
Check the user setting value of Table 2, and if setting value is different, set
6.SPATIALIZER : YES
the correct value.7.VOL LIMITER : YES
For setting, refer to the OPERATING INSTRUCTIONS.8.B/B SOUND : NO
9.TEXT : NO
(7) Setting of SERVICE MENU10.COLOUR AUTO : NO
Verify the setting items of the SERVICE MENU, and reset where necessary.
: SELECT
For setting, refer to the SERVICE ADJUSTMENTS.: OPERATEDISP : EXIT
SYSTEM CONSTANT-ŤŤŤŤ
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
SYSTEM CONSTANT SET 3/3
11.LANGUAGE : E/V
12.TUNER: MU
13.AMP TUNER : YES
14.VNR: NO
: SELECT
: OPERATEDISP : EXIT
Fig.2
14No. 51902 |
ACEC
