JVC TM-H1700G/E Service Manual page 9

REPLACEMENT OF MEMORY IC
1. MEMORY IC
This model uses memory IC. In the memory IC, memorized data
for correctly operating for the video-chroma, deflection and the
other control circuits.
When replacing memory IC, be sure to use the IC written with
the initial values of data.
2. PROCEDURE FOR REPLACING MEMORY IC
(1) Power off
Turn the power off and unplug the power plug from the AC
outlet.
(2) Replace IC
Be sure to use the memory IC written with the initial setting
data.
(3) Power on
Connect the power plug into the AC outlet and turn the
power on.
(4) Check and set SET-UP MENU items
1) Press the MENU key and the CHROMA/PHASE key
simultaneously.
2) The SET-UP MENU screen (Fig. 1) will be displayed.
3) Check the setting value of the each item of the SET-UP
MENU. If value is different, select it and set the correct
value.
4) Press the MENU key, and return to the normal screen.
(5) Check and set MENU items
Press the MENU key and check the setting value of the each
item. If the value is different, select the item and set the
correct value.
(6) Adjust the front control items
Adjust the CHROMA, PHASE, CONTRAST and BRIGHT.
Not all items can be adjusted as expected if the signal has
not been input correctly in the adjustments.
(7) Confirm the items of SERVICE MENU
Confirm the each item of the SERVICE MENU. Refer to the
corresponding page to operate the SERVICE MENU.
< BLOCK SELECT >
SIGNAL BLOCK
WHITE BALANCE BLOCK
DEFLECTION BLOCK
CONTROL BLOCK
SIG W/B DEF CNTL EXIT
SERVICE MENU
<BLOCK SELECT> SCREEN
1 1
1 1
PICTURE SUB ADJ.
H.POSITION
V.POSITION
2 2 2 2
WHITE BALANCE
CONTROL LOCK
STATUS DISPLAY
REMOTE SYSTEM : MAKE
INPUT REMOTE
4 4 4 4
5 5 5 5
① ① ① ① CURSOR
Display with the current adjusting item. Operate with the
CHROMA/PHASE key and CONTRAST/BRIGHT key.
② ② ② ② SETTING ITEM
The items of setting
③ ③ ③ ③ SETTING VALUE
Adjust each item of SET-UP MENU with the VOLUME/
SELECT ( － － － － or ＋ ＋ ＋ ＋ )key.
④ ④ ④ ④ FUNCTION DISPLAY
When you move the cursor to select the item, the function
display changes the illustration.
⑤ ⑤ ⑤ ⑤ OPERATION KEY ARRANGEMENT
In the SERVICE MENU, the original key operation by the
front panel replaced with the displayed function. Accordance
with the display about operate each mode.
No. 51922
SET-UP MENU
< SET-UP MENU>
: 00
: 00
3 3 3 3
: OFF
: ON
: A-B
EXIT
Fig.1
TM-H1700G
9