DOWNLOAD Sony KV-SW21M53 Service Manual ↓ Size: 4.47 MB | Pages: 59 in PDF or view online for FREE

Model
KV-SW21M53
Pages
59
Size
4.47 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-sw21m53.pdf
Date

Sony KV-SW21M53 Service Manual ▷ View online

– 10 –
KV-SW21M53/SW21M81/SW21N50
   RM-GA002
2-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B
adjustment.
1. Receive digital monoscope pattern.
2. Set Picture Mode to "DYNAMIC".
3. Adjust focus VR to obtain a just focus at the center of
the screen.
4. Change the receiving signal to white pattern and blue
back.
5. Confirm magenta ring is not noticeable. In case magenta
ring is obvious, then adjust FOCUS VR to balance
magenta ring and FOCUS.
2-4. G2 (SCREEN) ADJUSTMENT
1. Set the following condition:
– Picture and Brightness to "STANDARD".
– TV to Video mode.
– WHBL 016 "RGBB" to 01
2. Connect R, G, B of the C/CV board cathode to
oscilloscope.
3. Adjust Brightness to obtain the cathode value to the
value stated below.
4. Adjust SCREEN VR on the FBT until the scanning line
disappears.
5. Finally set WHBL 016 "RGBB" back to 00.
165 
± 2VDC
2-5. WHITE BALANCE ADJUSTMENT
1. Set to Service Mode.
2. Input white raster signal using signal generator.
3. Set the following condition:
Picture "DYNAMIC", PICT 006 "WTS" to 00.
4. At Highlight condition, select WHBL 03 "GDRV" and 04
"BDRV" with 1 and 4 button of the remote
commander then adjust the data with 3 and 6 button.
5. At Cutoff, select WHBL 000 "BKOR" and 001 "BKOG"
and adjust the data.
6. Perform adjustment at Highlight and Cutoff condition
until it reaches its target.
7. Write data into memory by pressing [MUTING] 
t -.
8. Finally set PICT 006 "WTS" back to its original data.
SCREEN
FOCUS
– 11 –
KV-SW21M53/SW21M81/SW21N50
   RM-GA002
SECTION 3
CIRCUIT ADJUSTMENTS
3-1. ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the supplied remote commander RM-GA002.
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.
– 12 –
KV-SW21M53/SW21M81/SW21N50
   RM-GA002
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 -.
RED
The WRITE display
then returns to green
SERVICE
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