JVC AV-34WP84 /ZA Service Manual page 13

3.2 MEMORY IC REPLACEMENT
3.2.1 MEMORY IC
This model uses a memory IC.
This memory IC stores data for proper operation of the video and
deflection circuits.
When replacing the memory IC, be sure to use an IC containing
this (initial value) data.
3.2.2 MEMORY IC REPLACEMENT PROCEDURE
(1) Power off
Switch the power off 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 the
power on.
(4) SERVICE MENU setting
Before entering the SERVICE MENU, confirm that the
setting of TV/CATV SW of the REMOTE CONTROL UNIT
is at the "TV" side and the setting of VCR/DVD SW of the
REMOTE CONTROL UNIT is at the "VCR" side. If the
switches have not been properly set, you cannot enter the
SERVICE MENU.
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 as shown in 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 the steps
described in the after page.
Where these do not agree, refer to the OPERATING
INSTRUCTIONS (USER'S GUIDE) and set the items as
described.
3.3 FACTRY SETTING VALUE
3.3.1 SERVICE MENU SETTING MODE
Setting Item
1.PICTURE/SOUND (SOUND AND PICTURE SETTING)
Sound circuits (A)
Video circuits (S)
Deflection circuits (D)
Factory setting items (F)
2.YC SEP
YC separation setting
3.WHITE BALANCE
White balance adjustment
4.MEMORY SETUP
Memory data edit
Settings Item No.
Fixed A01~A27
Adjust S01~S99
Adjust D01~D32
Adjust F01~F70
Fixed YCM001~YCS114
Fixed YCM001~YCS114
BR
Adjust DRV R, DRV B
CUT R, CUT G, CUT B
Non adjust ---
SERVICE MENU
1. PICTURE/SOUND
2. YC SEP
3. WHITE BALANCE
4. MEMORY SETUP
5. RF AFC
6.
SERVICE MENU SELECT KEY
TV/CATV
switch
TV CATV VCR
SPLIT
FREEZE
INPUT1
V1
INPUT2
V2
INPUT3
V3
INPUT4
V4
DIGITAL-IN
SLEEP D-IN
SLEEP TIMER DISPLAY SOUND
TIMER key
MEMORY key
MUTING
(MUTING)
Set value
/ key
MENU
VCR CHANNEL
MENU key
PREV NEXT
REW
REC
OPEN/CLOSE
Setting Item
5.RF AFC
IF VCO adjustment
8.IP
DIST processing setting
9.DSD
Digital super detail setting
0.HDMI
Digital input processing setting
7.
8. IP
9. DSD
0. HDMI
Fig.1
VCR/DVD
switch
DVD POWER
ASPECT
POWER key
MULTI SCREEN
POP INDEX EZ SURF
SELECT
SWAP
1 2 3
CHANNEL
NUMBER keys
4 5 6
7 8 9
DISPLAY &
0 RETURN
/TV
VIDEO
THEATER NATURAL
VIDEO
STATUS key
PRO CINEMA STATUS
LIGHT
i
Select item
C.C.
C.C.
CH
/ key
VOL VOL
OK
CH
BACK key
BACK
VCR / DVD
POWER TV/VCR
PLAY FF
STOP PAUSE
STILL/PAUSE
RM-C11G
TV
Fig.2
Settings Item No.
Refer to adjustment
Adjust
Procedure
Fixed IPA001~IPA042
Fixed DSA001~DSA053
Fixed DSB001~DSB053
Fixed DSC001~DSC044
Fixed DSD001~DSD017
Fixed HDM001~HDM080
Fixed RHD001~RHD170
(No.52170)1-13