JVC AV-65WP74/HA, Service Manual

Page: 21 / 126

AV-65WP74
(No.52096)1-21
2.9 MEMORY IC REPLACEMENT
2.9.1 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.
Fig.1
2.9.2 MEMORY IC REPLACEMENT PROCEDURE
(1) Power off
Switch off the power and disconnect the power cord from
the wall outlet.
(2) Replace the memory IC
Initial value must be entered into the new IC.
(3) Power on
Connect the power cord to the wall outlet and switch on the
power.
(4) SERVICE MENU setting
a) 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 (Fig.2) simultaneously.
b) The SERVICE MENU screen of Fig.1 is displayed.
c) Verify what to set in the SERVICE MENU, and set
whatever is necessary (Fig.1).
Refer to the SERVICE ADJUSTMENT for setting.
d) Press the [BACK] key twice to return 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 after page.
Where these do not agree, refer to the OPERATING
INSTRUCTIONS (USER'S GUIDE) and set the items as
described.
Fig.2
2.9.3 SERVICE ADJUSTMENT ITEM
SERVICE MENU
SERVICE MENU
1.PICTURE/SOUND
2.YC SEP
3.WHITE BALANCE
4.MEMORY SETUP
5.RF AFC
6.CONVER A 7.CONVER BD
8.PP
9.IP
0.GCR
RM-C1200G
POWER
VIDEO
STATUS
INPUT2
INPUT3
INPUT4
DIGITAL-IN
INPUT1
SPLIT
100+
3
9
6
/TV
MUTING
MENU
C.C.
BACK
TV CATV VCR DVD
THEATER
PRO
NATURAL
CINEMA
LIGHT
SLEEP TIMER DISPLAY SOUND
1
7
4
2
8
0
5
POP
FREEZE SWAP SELECT
INDEX
ASPECT
EZ SURF
+
CH
VOL VOL
+
CH
OK
REC
OPEN/CLOSE STILL/PAUSE
STOP PAUSE
PLAY FF REW
VCR CHANNEL
PREV NEXT TV/VCR
VCR/DVD
POWER
SERVICE MENU SELECT KEY
MULTI SCREEN
POWER
NUMBER
FUNCTION
(UP)
FUNCTION
(RIGHT)
FUNCTION
(DOWN)
DISPLAY
FUNCTION
(LEFT)
MENU
SLEEP
TIMER
MEMORY
(MUTING)
VIDEO
STATUS
BACK
Setting item Item No. Remark Setting item Item No. Remark
1.PICTURE/SOUND 7.CONVER B
AUDIO A01~A27 Convergence adjustment ------
VIDEO S01~S99 8.PP
DEFLECTION D01~D32 Multi-picture adjustment and
setting ADM001~ADM034 Do not adjust
FACTORY setting F01~F70 PPA001~PPA008 Do not adjust
2.YC SEP PPB001~PPB036 Do not adjust
YC separation setting YCM001~YCM185 Do not adjust PPC001~PPC008 Do not adjust
YCS001~YCS114 Do not adjust PPD001~PPD025 Do not adjust
3.WHITE BALANCE 9.IP
LOW LIGHT/HIGH LIGHT
adjustment BR, DRV R, DRV B,
CWT R, CWT G,
CWT B
DIST process setting IPA001~IPA120 Do not adjust
4.MEMORY SETUP ------ Do not adjust IPB001~IPB079 Do not adjust
5.RF AFC IPC001~IPC044 Do not adjust
AFC of TUNER setting TUNER, AFC,FINE Do not adjust IPD001~IPD026 Do not adjust
6.CONER A IPE001~IPE015 Do not adjust
Convergence adjustment CPA01~CPA08 0.GCR
CCA01CCA09 Ghost re reduction Not use
CBA01~CBA80 Do not adjust