DOWNLOAD Sony KV-AR21M83 Service Manual ↓ Size: 5.65 MB | Pages: 97 in PDF or view online for FREE

Model
KV-AR21M83
Pages
97
Size
5.65 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ar21m83.pdf
Date

Sony KV-AR21M83 Service Manual ▷ View online

– 10 –
KV-AR21M83
   RM-W101
(2) Convergence Rough Adjustment
Preparation:
• Before starting this adjustment, adjust the horizontal
static convergence and the vertical static
convergence
TLV
R B
YCH
R
B
XCV
B
R
TLH
B
R
Piece A (90), conv. correct
a
b
c
d
TLH
Insert
TLH
Correction Plate to DY Pocket
(Left or Right)
YCH
Insert
YCH
VOL on DY
TLV
Rotate TLV
VOL on DY
XCV
Rotate XCV
Adj core on DY
(3) Screen corner Convergence
1. Affix a Piece A (90), conv. correct corresponding to
the misconverged areas.
b
a
c
d
a-d : screen-corner
        misconvergence
ON DY:
TLV
TLV
XCV
YCH
DY pocket
DY pocket
TLH Plate
XCV
– 11 –
KV-AR21M83
   RM-W101
2-5. WHITE BALANCE ADJUSTMENT
1. Set to Service Mode (Refer Section 3-1:
ADJUSTMENTS WITH COMMANDER)
2. Input white raster signal.
3. Set Picture to <DYNAMIC mode>
4. Select RDRV (02) with 
1
 and 
4
 and fixed the value
to 25 with 
3
 and 
6
.
5. Adjust WHBL GDRV (03) and BDRV (04) with 
1
 and
4
 and adjust the data with 
3
 and 
6
 for best white
balance in Highlight condition.
6. Write into the memory by pressing [MUTING] then 
-
.
7. Adjust WHBL BKOR (00) and BKOG (01) with 
1
 and
4
 and adjust the level with 
3
 and 
6
 for best white
balance cut-off condition.
8. Write into memory by pressing [MUTING] then 
-
.
9. US model need to apply only for colour temperature
in Neutral.
2-6. SUB BRIGHT ADJUSTMENT
1. Set to service mode.
2. Brightness set to 50%, Picture....Minimum
3. Select WHBL SBRT (10) with 
1
 and 
4
 and adjust
SBRT (10) data with 
3
 and 
6
 so that the third stripe
from right dimly lit.
4. Write into the memory by pressing [MUTING] then 
-
.
5. GA models C/O: 20 IRE
S/G: 30 IRE
165 
± 2VDC
2-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before the W/B
adjustment:
1. Receive digital monoscope pattern.
2. Set picture mode: DYNAMIC.
3. Adjust focus VR to obtain a just focus at the center of
the screen.
4. Change receiving signal to white pattern and blue
back.
5. Confirm MAGENTA RING is not noticeable. Incase
magenta ring is obvious, then adjust FOCUS VR to
balance magenta ring and FOCUS.
2-4. G2 (SCREEN) Adjustment
1. Set the PICTURE & BRIGHTNESS to STANDARD.
2. Put the Video input mode signal.
3. Connect R,G,B of the CV board cathode to
oscilloscope.
4. Adjust Brightness to obtain the cathode value to
value below.
5. Adjust G2 (screen) on the FBT until picture shows
the point before cut off.
FLYBACK TRANSFORMER  (T802-14")
FLYBACK TRANSFORMER  (T801-21")
SCREEN
FOCUS
– 12 –
KV-AR21M83
   RM-W101
SECTION 3
CIRCUIT ADJUSTMENTS
3-1. ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the supplied remote commander RM-W101.
a. ENTERING SERVICE MODE
With the unit on standby
This operation sequence puts the unit into service mode.
This screen display is:
b. METHOD OF CANCELLATION FROM SERVICE MODE
Set the standby condition (Press [POWER] button on the commander), 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 item.
3. Change item by pressing 
3
6
.
4. Press [MUTING] button to indicate WRITE on the screen.
5. Press 
-
 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.
  
t [DISPLAY] t 5 t [VOL $+% ] t [POWER]
item no.
service data
NVM
field
channel no./
category
in decimal
item name
in decimal
NG
service command
frequency
video input name
GEOM
006
HSIZ
031
x
SERVICE
60
S VIDEO 1
software
service data
reserved
power on time
release ID
version
in binary
for factory
color system
(decimal?)
SUS01
0.69U
0001 1111
FF FF
NTSC3
65535
Status Byte
Status Byte
Flash DCXO
#1 SSD
#2 SSD
111 11 11 1 7 11
FG
xy 111
000000
000000
VDSP_C Flag
CO_LOCKED
VDSP
Detected Stereo Type (Direct Value from CZ_ Stereo_Mode)
S : for Sony
A : Aiwa
U S
: US/Latin/Taiwan
E U
: Europe
G A
: General Area
J P
: Japan
0 1 : serial no. of the M/P release
for each destination
111
Needed for Nicam DCXO aligment Purpose
xy
Value of x = 0 - Unknown, 1 - BTSC, 2 - A2, 3 - NICAM,
4 - KOREAN, 5 - Japan, 6 - AV Stereo
Value of y = 0 - Mono, 1 - Stereo, 2 - Bilingual, 4 - SAP/Single
1, 4
Select the adjustment item.
r
3, 6
Raise/lower the data value.
r
[MUTING]
Writes.
r
-
Executes the writing.
– 13 –
KV-AR21M83
   RM-W101
e. OTHER FUNCTION VIA REMOTE COMMANDER
7, -
All the data becomes the values in memory.
8, -
All user control goes to the standard state.
Display, -
Service data initialization (Be sure not to use usually.)
2, 5
Select Device or Category
3-2. ADJUSTMENT METHOD
Item Number 000 HPOS
This explanation uses H POSITION as an example.
1. Select "000 HPOS" with the 
1
 and 
4
 buttons, or 
2
 and 
5
.
2. Raise/lower the data with the 
3
 and 
6
 buttons.
3. Select the optimum state. (The standard is IF 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 :-
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.
Adjusted with [3] and [6] buttons.
GREEN
GEOM
000
HPOS
039
SERVICE
50
VIDEO 1
write with [MUTING].
GREEN
GEOM
000
HPOS
039
WRITE
50
VIDEO
1
GEOM
000
HPOS
039
WRITE
50
VIDEO
1
Write executed with [0].
RED
The WRITE display
then returns to green
SERVICE
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