Sony KV-XJ29N80 Service Manual ▷ View online
KV-XJ29N80
RM-915
– 25 –
(3) Screen-corner Convergence
Fix a Permalloy assy corresponding to the misconverged
areas.
areas.
3-3. FOCUS ADJUSTMENT
Focus adjustment should be completed before W/B adjustment.
b
a
c
d
a-d : screen-corner
misconvergence
misconvergence
a
b
c
d
Permalloy assembly
FOCUS ADJUSTMENT
1) Receive digital monoscope pattern.
2) Set "AV CONTROL" to "DYNAMIC"
3) a) Adjust FOCUS VR so that center of the screen becomes
just focus.
4) Change the receiving signal to white pattern and blue back.
5) Confirm MAGENTA RING is not noticeable,
Incase magenta is very obvious, adjust a FOCUS VR to take
balance between MAGENTA RING and FOCUS.
FLYBACK TRANSFORMER (T503)
Screen
Focus
2. WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
WITH COMMANDER).
2) Input white raster signal.
3) Set the PICTURE to minimum.
4) Select GCT (WHB 04) and BCT (WHB 05) with
[1]
and
[4]
,
and adjust the level with
[3]
and
[6]
for the best white bal-
ance.
5) Set the PICTURE to maximum.
6) Select GDR (WHB 01) and BDR (WHB 02) with
[1]
and
[4]
, and adjust the level with
[3]
and
[6]
for the best white
balance.
7) Write into the memory by pressing
[MUTING]
then
[0]
.
3. SUB BRIGHT ADJUSTMENT
1) Set to service mode.
2) Input a staircase signal of black to white from the pattern
generator.
3) BRIGHTNESS .... 50%.
PICTURE ............ MINIMUM
4) Select SBR (WHB 07) with
[1]
and
[4]
, and adjust SBR (WHB
07) level with
[3]
and
[6]
so that the second stripe from the
right is dimly lit.
3-4. G2 (SCREEN) AND WHITE BALANCE
ADJUSTMENTS
1. G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C6 board cathode to the
oscilloscope.
4) Adjust BRIGHTNESS to obtain the cathode voltage to the
value below.
5) Adjust G2 (screen) on the FBT until picture shows the
point before cut off.
White
second from the right
Black
Cathode setting voltage:
180 V ± 2 (VDC)...29"
KV-XJ29N80
RM-915
– 26 –
SECTION 4
CIRCUIT ADJUSTMENTS
4-1. ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the
supplied Remote Commander RM-915.
supplied Remote Commander RM-915.
a. ENTERING SERVICE MODE
With the unit on standby
With the unit on standby
This operation sequence puts the unit into service mode.
The screen display is :
b. METHOD OF CANCELLATION FROM SERVICE
MODE
Set the standby condition (Press [POWER] button on the com-
mander), then press [POWER] button again, hereupon it becomes
TV mode.
c. METHOD OF WRITE INTO MEMORY
1) Set to Service Mode.
2) Press [1] (UP) and [4] (DOWN), to select the adjustment.
4) Press [MUTING] button to indicate WRITE on the screen.
5) Press [0] button to write into memory.
d. MEMORY WRITE CONFIRMATION METHOD
1) After adjustment, pull out the plug from AC outlet, and then
plug into AC outlet again.
2) Turn the power switch ON and set to Service Mode.
3) Call the adjusted items again to confirm adjustments were
made.
n
[DISPLAY]
n
5
n
VOL (+)
n
[POWER]
4-2. ADJUSTMENT METHOD
Item Number 00 of device GEO
This explanation uses H-Position as an example.
1. Select “GEO 00 HPS” with the 1 and 4 buttons.
2. Raise/lower the data with the 3 and 6 buttons.
3. Select the optimum state. (The standard is 1F for PAL
reception.)
4. Write with the
[MUTING]
button. (The display changes to
WRITE.)
5. Execute the writing with the - button. (The WRITE
display will be changed to red color while excuting, and
back to SERVICE.)
Example on screen display :-
1, 4
Select the adjustment item.
↓
3, 6
Raise/lower the data value.
↓
[MUTING]
Writes.
↓
-
Executes the writing.
7, -
All the data becomes the values in memory.
8, -
All user control goes to the standard state.
5, -
Service data initialization (Be sure not to use
usually.)
[MUTING]
+ -
Write 50Hz adjustment data to 60Hz, or vice
versa.
2, -
Copy the data.
Use the same method for all Items. Use 1 and 4 to select the
adjustment item, use 3 and 6 to adjust, write with [MUTING],
then execute the write with -.
Note : 1. In [WRITE], the data for all items are written into
memory together.
2. For adjustment items that have different standard
data between 50Hz or 60Hz, be sure to use the
respective input signal after adjustment.
respective input signal after adjustment.
PAL,SECAM:50
NTSC :60
NTSC :60
00
HPS
1C
SERVICE
Data
Mode
Item
Name
Item No
Software version
Suffix No
(OEM Code)
(OEM Code)
Total Power-On time (hours)
p
Marking of new NVM
GEO
1.0C
59
7F
000A
0
643S
Device
Name
50
1F
SERVICE 50
HPS
Adjusted with [3]
and [6] buttons.
and [6] buttons.
GREEN
Write with [MUTING]
Write executed with [0]
GEO
00
7F
0
000A
59
643S 1.0C
GREEN
1F
WRITE
50
HPS
GEO
00
7F
0
000A
59
643S 1.0C
1F
SERVICE 50
HPS
RED
The WRITE display
then the display
returns to green
SERVICE
The WRITE display
then the display
returns to green
SERVICE
GEO
00
7F
0
000A
59
643S 1.0C
KV
-XJ29N80
-XJ29N80
RM-915
–
28
–
Adjustment Item Table
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