Sony KV-32XBR400 Service Manual ▷ View online
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KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C
3. Adjust white balance in the service mode and set the
following data:
2150P-1
No.
Name
Control Function
Avg. Data
05
RDRV
R-DRIVE
Fix: 41
06
GDRV
G-DRIVE
Adjust
07
BDRV
B-DRIVE
Adjust
08
RCUT
R-CUT OFF
Fix: 41
09
GCUT
G-CUT OFF
Adjust
10
BCUT
B-CUT-OFF
Adjust
4. Adjust sub-brightness: Input an all black signal (to IRE 7.5%
set up) 480i (15.75KHz) signal into the VIDEO 1 input
terminal and adjust the following parameter of the
CXA2150P-1.
terminal and adjust the following parameter of the
CXA2150P-1.
CXA2150P-1
No.
Name
Control Function
Avg. Data
04
SBRT
SUB-BRIGHT
Adjust
5. Check INITIAL DATA (Important)
2150P-1
No.
Name
Control Function
Avg. Data
00
SBOT
SUB-BRT OFFSET
7
12
SBOF
SUB-BRT OFFSET
63
6. Repeat steps 3 to 5.
3-8. RASTER CENTER ADJUSTMENT
1. Input a monoscope signal.
2. Set to NTSC (DRC) mode.
3. Enter service mode and set the following:
CXA2150P-2
No.
Name
Control Function
Avg. Data
06
AGNG
AGING1, AGING2
2
CXA2150D-2
No.
Name
Control Function
Avg. Data
02
HSIZ
Horiz Size
31
CXA2150D-3
No.
Name
Control Function
Avg. Data
00
HBLK
Blanking enable
0
4. Reduce HSIZ to see sides of raster.
5. Adjust H-Center with CXA2150D-2 00.
6. Adjust the best screen position with H-CENT and write data.
7. Restore aging, HSIZ and HBLK to original condition.
3-9. PICTURE DISTORTION ADJUSTMENTS
3-9-1. NTSC (DRC) Full mode adjustment
1. Face picture tube to east or west direction.
2. Complete VPIN and VCEN adjustment first. (A2150-D1 05
VPIN, A2150-D1 04 VCEN)
3. Input a monoscope and a cross-hatch signal. Adjust picture
distortion with the following service parameters to balance
the best condition for these two signals.
the best condition for these two signals.
A2150-D1
00
VPOS
A2150-D1
01
VSIZ
A2150-D1
02
VLIN
A2150-D1
03
VSCO
A2150-D1
04
VCEN
A2150-D1
05
VPIN
A2150-D1
07
HTPZ
A2150-D2
01
HPOS
A2150-D2
02
HSIZ
A2150-D2
03
SLIN
A2150-D2
05
PIN
A2150-D2
06
UCP
A2150-D2
07
LCP
A2150-D2
13
PPHA
A2150-D2
14
VANG
A2150-D2
15
LANG
A2150-D2
16
VBOW
A2150-D2
17
LBOW
Make sure picture size is within specs. Vertical size is 11.8 sq.
and Horizontal size is 15.8 sq.
and Horizontal size is 15.8 sq.
4. Write data into memory then set screen to 1080i Mode.
CXA2150D-1
0.
VPOS ( V-POSITION)
1.
VSIZ (V-SIZE)
2.
VLIN (V-LINE)
3.
VSCO (VS-COR)
7. HTPZ (H-TRAPEZOID)
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KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C
CXA2150D-2
1.
HPOS (H-POSITION)
2.
HSIZ (H-SIZE)
5.
PIN (PIN AMP)
6.
UCP (UP COR PIN COR)
7.
LCP (LOW CO PIN COR)
13. PPHA(PIN PHASE)
14. VANG (AFC-ANGLE)
15. LANG (L-ANGLE)
16. VBOW (AFC-BOW)
17. LBOW (L-BOW)
3-9-2. 1080i HD mode adjustment
1. Input a 1080i HD cross-hatch signal and an HD monoscope
signal that contains overscan markers.
2. Adjust raster position per section 3-8 only if this procedure
was not performed for full mode.
3. Adjust geometry similar to Full DRC mode. Vertical size is
11.8 sq. and Horizontal size is 15.8 sq if monoscope signal is
available. Otherwise use Vertical size as 91.5% scan,
Horizontal size as 90% scan.
available. Otherwise use Vertical size as 91.5% scan,
Horizontal size as 90% scan.
4. Use the following register to adjust the horizontal parameter:
A2150-D2
01
HPOS
If necessary, touch up geometry using the data register listed
above for Full mode.
above for Full mode.
5. Write data into memory.
3-9-3. Vertical Compressed Mode Check and
Confirmation
Confirmation
1. Input a monoscope and a cross-hatch signal.
2. Check vertical compressed mode.
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KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C
Is RHT
Changed?
Is D-Board
Replaced?
If all adjustments are complete, then seal and secure RV8001,
RV802 and RV8003 with epoxy to prevent any possible
misadjustment by non-trained technical service.
Replace RV8001, RV8002 and RV8003 with the same value:
HV project adjust and inspection
1. Turn RV8001 and RV8003 fully counter-clockwise.
2. Turn set on with black video signal then adjust RV8002 slowly to obtain
35.5kv.
3. Adjust RV8001 clockwise slowly until hold how protection just activiates,
then turn set off. Turn back RV8001 about 1/16 turn, then turn set back
on.
on.
4. Turn RV8003 (fine adjust) slowly clockwise until hold down protect just
activates. Then turn the set off.
5. Adjust RV8002 clockwise, then turn the set on. Change video to white
field then slowly turn RV8002 counter-clockwise to get 35.0 = 0.2kv.
Confirm set does NOT TURN OFF at this condition. If yes, then repeat
from step 1 again.
Confirm set does NOT TURN OFF at this condition. If yes, then repeat
from step 1 again.
6. Finally, set back RV8002 to 31.50kv + 0.2kv at video cut off (black video).
SECTION 4
SAFETY RELATED ADJUSTMENTS
RV8001, RV8002, RV8003 CONFIRMATION METHOD AND HV SERVICE ADJUSTMENTS
B+ Max Confirmation:
HV Service Flowchart
Standard: 135.3 + 1 VCD
Check Condition:
AC input voltage : 120 (± 2) VAC at Board Adjustment Process
130 ( ± 2) VAC at QC
120 ( ± 2 ) VAC at Overall Adjustment (After aging)
*Note: If using stabilized power supply, make sure the distortion factor is 3% or less.
Setting Mode:
Full mode
Signal input :
Cross hatch of NTSC at QC
Initial setting :
Reset condition at QC
Confirm point :
Across C6544 for B+ of [D] board.
— 24 —
KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C
5-1. SETTING THE SERVICE ADJUSTMENT MODE
1. Standby mode (power off).
2. Press each of the following buttons on the remote within
a second of each other:
SERVICE ADJUSTMENT MODE VIEW
SBOT
SERVICE
TV
WSL: 0
F/A FLAG:
CBA FLAG:
Reading the Memory
1. Enter into Service Mode
2. Press 0 on the remote commander.
3. Press ENTER to read memory.
Adjusting the Picture
1. Enter into Service Mode.
2. Press 2 or 5 on the remote to select the device item.
2. Press 1 or 4 on the remote to select an item.
3. Press 3 or 6 on the remote to change the data.
4. Press MUTING then ENTER to save into the memory.
RESETTING THE DATA
Note: Be careful when using the remote! It will clear and
reinitialize ALL NVM data including deflection adjustment
data if not reset properly as follows:
reinitialize ALL NVM data including deflection adjustment
data if not reset properly as follows:
Resetting the Deflection NVM Data
1. Enter into Service Mode.
2. Press 7, MENU, and then press Enter on the remote.
Resetting the System NVM Data
1. Enter into Service Mode.
2. Press 7, then 9, and then press Enter on the remote.
Resetting the User Data
1. Enter into Service Mode.
2. Press 8, and then press Enter on the remote.
SECTION 5
CIRCUIT ADJUSTMENTS
ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER
Use the Remote Commander (RM-Y74) to perform the circuit adjustments in this section.
NOTE: Test Equipment Required:
1) Pattern generator
2) Frequency counter
3) Digital multimeter
4) Audio oscillator
RM-Y174
5-2. MEMORY WRITE CONFIRMATION METHOD
1. After adjustment, remove the power plug from the AC
outlet, then plug it in again.
2. Turn the power switch ON and set to service mode.
3. Call the adjusted items again to confirm they were
adjusted properly.
5-3. ADJUSTMENT BUTTONS AND INDICATORS
DATA UP
DATA DOWN
DEVICE DOWN
EXECUTE
READ MEMORY
WRITE INTO
MEMORY
MEMORY
ITEM UP
ITEM DOWN
TEST RESET
DEVICE UP
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