No. 51782
AV-32220
11
MEMORY IC REPLACEMENT
1. Memory IC
This model uses a memory IC.
This memory IC stores data for proper operation of the video and deflection circuits.
When replacing, be sure to use an IC containing this (initial value) data.
2. Memory IC replacement procedure
Procedure
Screen display
(1) Power off
Switch off the power and disconnect the power cord from the outlet.
(2) Replace the memory IC
Initial value must be entered into the new IC.
(3) Power on
Connect the power cord to the outlet and switch on the power.
(4) System constant check and setting
It must not adjustment
1) Press
SLEEP TIMER
key and, while the indication of “
SLEEP TIMER 0
MIN.
” is being displayed, press
DISPLAY
key and
VIDEO STATUS
key
on the remote control unit simultaneously.
2) The SERVICE MENU screen of Fig.1 is displayed.
3) While the SERVICE MENU is displayed, again simultaneously press
the
DISPLAY
and
VIDEO
STATUS
keys to display the Fig.2 SYSTEM
CONSTANT screen.
4) Refer to the SYSTEM CONSTANT table and check the setting items.
Where these differ, select the setting item with the
MENU
UP/DOWN
key and adjust the setting with the
MENU
LEFT/RIGHT
keys. (The
letters of the selected item are displayed in yellow.)
5) After adjusting, release the
MENU
LEFT/RIGHT
key to store the setting
value.
6) Press the
EXIT
key twice to return the normal screen.
(5) Receive channel setting
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set
the receive channels (Channels Preset) as described.
(6) User settings
Check the user setting items according to Table 2.
Where these do not agree, refer to the OPERATING INSTRUCTIONS
(USER'S GUIDE) and set the items as described.
(7) SERVICE MENU setting
Verify what to set in the SERVICE MENU, and set whatever is
necessary. (Fig.1) Refer to the SERVICE ADJUSTMENT for setting.
SERVICE MENU
PICTURE
SOUND
THEATER
OTHERS
LOW LIGHT
HIGH LIGHT
RF AFC
VCO (CW)
I2C BUS CTRL
SELECT
BY
OPERATE BY
EXIT BY
EX
IT
Fig.1
SYSTEM CONSTANT
MODEL
:
XX-XXXXX
CCD
:
YES
BBE
:
NO
V-CHIP
:
YES
CAN V-CHIP
:
NO
XXXXXXXXX XXX
SELECT
BY
OPERATE BY
EXIT BY
EX
IT
Fig.2
Содержание AV-32220/G
Страница 35: ...AV 32220 AV 32220 No 51782 No 51782 3 2 5 2 6 CIRCUIT DIAGRAMS MAIN PWB FRONT CONTROL PWB CIRCUIT DIAGRAM ...
Страница 36: ...AV 32220 AV 32220 No 51782 No 51782 4 50 4 320 2 7 2 8 MAIN PWB CRT SOCKET PWB CIRCUIT DIAGRAM ...
Страница 37: ...AV 32220 AV 32220 No 51782 No 51782 5 54 4 320 2 9 2 10 AV SELECTOR FRONT JACK PWB CIRCUIT DIAGRAM ...
Страница 38: ...AV 32220 AV 32220 No 51782 No 51782 6 TP 91 B1 TP E FRONT 2 11 2 12 PATTERN DIAGRAMS MAIN PWB PATTERN ...
Страница 39: ...AV 32220 AV 32220 No 51782 No 51782 7 TOP 2 13 2 14 AV SELECTOR PWB PATTERN ...
Страница 62: ...No 51782 AV 32220 51 ...
