AV-25PS
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, be sure to
use ICs written with the initial values of data.
2. Procedure for replacing memory ICs
(1) Power off
Switch off the power and disconnect the power plug from the wall outlet.
(2) Replace the memory ICSERVICE MENU
Be sure to use memory ICs written with the initial data values.SERVICE MENU
(3) Power on1. IF 2. V/C
3. AUDIO 4. DEF
Connect the power plug into the wall outlet and switch power on.5. VSM PRESET 6. WB PRESET
7. AUTO PROGRAM (OFF)
(4) Check and set SYSTEM CONSTANT SET
It must not adjust without signal.1-7 : SELECTDISP: EXIT
JVC JK ASIA V**
1) Press the DISPLAY key and the PICTURE MODE key of the REMOTEM*******-*****
CONTROL UNIT simultaneously.
2) The SERVICE MENU screen of Fig. 1 will be displayed.Fig.1
3) While the SERVICE MENU is displayed, again press the DISPLAY key and
PICTURE MODE key simultaneously, and the SYSTEM CONSTANT SET
screen of Fig. 2 will be displayed.
4) Check the setting values of the SYSTEM CONSTANT SET of Table 1 in pageSYSTEM CONSTANT SET
later. If the value is different, select the setting item with the MENU UP/DOWNMODEL=JK_ASIA(V*.***)
COLOUR: MULTI
key, and set the correct value with the MENU LEFT/RIGHT key.
MSP: NO
5) Press the OK key to memorize the setting value.SUPER BASS: NO
CENTER SPEAKER : NO
6) Press the DISPLAY key twice, and return to the normal screen.TEXT: NO
(5) Receive channel setting
OK :STORE DISP :EXIT
Refer to the OPERATING INSTRUCTIONS, and set the receive channels as
described.SYSTEM CONSTANT(1/3)
(6) User settings
Check the user setting items according to Table 2. Where these do not agree, refer
to the OPERATING INSTRUCTIONS.
SYSTEM CONSTANT SET
(7) SERVICE MENU settingMODEL=JK_ASIA(V*.***)
BLUE BACK MUTE: NO
Verify what to see in the SERVICE MENU, and set what ever in necessary.VOLUME LIMIT: YES
COLOUR AUTO: NO
KEY ASSIGNMENT OF REMOTE CONTROL UNITTILT: NO
C-TRAP: 1
OK :STORE DISP :EXIT
OKMENU
UP/DOWN
SYSTEM CONSTANT(2/3)
MENU
LEFT/RIGHT
DISPLAY
SYSTEM CONSTANT SET
MODEL=JK_ASIA(V*.***)
PICTUREE.M.C.: NO
MODEN/S WHITE BACK: NO
7 LED SPEED: 00
OK :STORE DISP :EXIT
SYSTEM CONSTANT(3/3)
Fig.2
8No. 51750 |
ACEC
JVC
