Sony KD-34XBR2 Service Manual ▷ View online
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KD-34XBR2
Device Name
Adj. Item #
Name
Data
2150D-1
12
SCRL
*
* Adjust as necessary to vertically center the pattern. If the monoscope
pattern is not available, use the cross-hatch pattern’s center dot as the
reference point.
pattern is not available, use the cross-hatch pattern’s center dot as the
reference point.
Monoscope Pattern
A
B
A = B
9. Write the data to memory.
10. Adjust the vertical size.
Device Name
Adj. Item #
Name
Data
2150D-1
11
ASPT
*
* Adjust to meet the following spec.:
Monoscope pattern: 10.8 boxes.
Cross-hatch pattern: 83% of the full pattern height.
10.8 boxes
(monoscope
pattern only!)
pattern only!)
Monoscope Pattern
11. Write the data to memory.
12. Display a cross-hatch pattern (do not use the monoscope pattern.
13. Adjust horizontal outer pin cushion.
Device Name
Adj. Item #
Name
Data
2150D-2
5
PIN *
* Adjust as necessary to straighten the vertical lines of the cross-hatch
pattern. The PIN adjustment is more effective in the outer areas of the
screen.
pattern. The PIN adjustment is more effective in the outer areas of the
screen.
14. Write the data to memory.
15. Adjust the pincushion in the top and bottom corners of the screen.
Device Name
Adj. Item #
Name
Data
2150D-2
7
UCP
*
2150D-2
8
LCP
*
* Adjust as necessary to straighten the vertical lines of the cross-hatch
pattern in the top and bottom corners of the screen
pattern in the top and bottom corners of the screen
16. Write the data to memory.
17. Adjust the vertical keystone.
Device Name
Adj. Item #
Name
Data
2150D-2
14
PPHA
*
* Adjust as necessary to remove vertical keystone.
18. Write the data to memory.
This completes the WIDE ZOOM mode geometry adjustment.
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KD-34XBR2
4-5. TWIN MODE GEOMETRY CONFIRMATION
The TWIN mode uses the FULL mode adjustments. You should check
the geometry in TWIN mode, but it will normally be OK. Minor fl aws are
allowed. Anything beyond minor fl aws indicates problems that will be
evident in the FULL mode also. You should correct the problems in the
FULL mode only, not the TWIN mode.
the geometry in TWIN mode, but it will normally be OK. Minor fl aws are
allowed. Anything beyond minor fl aws indicates problems that will be
evident in the FULL mode also. You should correct the problems in the
FULL mode only, not the TWIN mode.
This completes the TWIN mode geometry confi rmation.
4-6. HIGH DEFINITION 1080I MODE
GEOMETRY ADJUSTMENT
GEOMETRY ADJUSTMENT
The high defi nition 1080i mode (“HD1080i”) shares many of the
FULL mode adjustments. As a rule you should not have to make
any adjustments in HD1080i mode except vertical size (ASPT),
vertical position (SCRL), and horizontal positioning (HPOS) which are
independent of the FULL mode.
FULL mode adjustments. As a rule you should not have to make
any adjustments in HD1080i mode except vertical size (ASPT),
vertical position (SCRL), and horizontal positioning (HPOS) which are
independent of the FULL mode.
SET-UP CONDITION:
Display Mode: HD1080i FULL (this mode is automatically selected when
a 1080i video signal is displayed).
Display Mode: HD1080i FULL (this mode is automatically selected when
a 1080i video signal is displayed).
Picture mode: STANDARD (select the STANDARD mode from the user
menu, then press the RESET button on the remote control to set the
STANDARD settings to the factory settings).
menu, then press the RESET button on the remote control to set the
STANDARD settings to the factory settings).
TILT CORRECTION: set to zero (from the user menu).
VERTICAL CORRECTION: set to zero (from the user menu).
PROCEDURE:
1. With the set turned off, turn it on and tune a DTV channel (either
1. With the set turned off, turn it on and tune a DTV channel (either
standard defi nition or high defi nition is OK), then turn the set off
again.
again.
2. Enter the service mode.
3. Display the 1080i cross-hatch pattern as follows:
a. Select adjustment category “DTV”.
b. Select adjustment item # 1 “PATN”.
c. Select the 1080i cross-hatch pattern by changing the PATN
data from “0” to “1”. The cross-hatch will appear after a
second or two.
data from “0” to “1”. The cross-hatch will appear after a
second or two.
4. Adjust the pattern so that it is centered on the screen horizontally
and vertically. Use the dots that surround the pattern to determine
when it is centered.
when it is centered.
The HPOS adjustment affects the other display modes; adjust it to fi nd
the best balance among all display mode.
the best balance among all display mode.
Device Name
Adj. Item #
Name
Data
2150D-1
12
SCRL
*
2150D-2
1
HPOS
*
* Adjust as necessary to horizontally and vertically center the pattern.
5. Write the data to memory.
6. Adjust the vertical size.
Device Name
Adj. Item #
Name
Data
2150D-1
11
ASPT
*
* Adjust as necessary so that the horizontal dots along the top and
bottom of the pattern are close to the bezel.
bottom of the pattern are close to the bezel.
7. Write the data to memory.
This completes the HD1080i mode geometry adjustment.
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KD-34XBR2
SECTION 5. STATIC CONVERGENCE ADJUSTMENTS
Perform these adjustments when any of the following are replaced: CRT, defl ection yoke, D-board, and whenever touch-ups are required.
REQUIRED EQUIPMENT: NTSC generator with dot pattern and cross-hatch pattern.
SET-UP CONDITION:
Display Mode: FULL (NTSC)
Display Mode: FULL (NTSC)
Picture mode: STANDARD (select the STANDARD mode from the user menu, then press the RESET button on the remote control to set the
STANDARD settings to the factory settings).
STANDARD settings to the factory settings).
BRIGHTNESS: 50%
PICTURE: 50%
TILT CORRECTION: set to zero (from the user menu).
VERTICAL CORRECTION: set to zero (from the user menu).
H-STAT control
C Board
PROCEDURE:
1. Make sure the TV power is off, then disable the dynamic convergence
1. Make sure the TV power is off, then disable the dynamic convergence
circuit by unplugging CN5510 from the D-board.
2. Turn the set on and display the dot pattern.
CN5510
3. Adjust the H-STAT control on the C-board (RV9001) to horizontally
converge the red, green, and blue dots in the center of the screen.
R
B
R
B
4. Lock the H-STAT control with locking paint.
5. Adjust the V-STAT magnets on the defl ection yoke to vertically
converge the red, green, and blue dots in the center of the screen.
B
R
B
R
6. Adjust the BMC magnets and the V-STAT magnets for the best
possible alignment of the red, green, and blue dots.
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KD-34XBR2
The magnets interact with each other, so you may have to alternately
switch between them several times.
switch between them several times.
B
R
B
R
7. Secure the magnets by applying locking paint.
8. Adjust the convergence along the horizontal axis throughout the entire
screen by turning the XCV core located at the bottom of the yoke
assembly. A plastic tuning tool is required. Do not use a hex wrench
as its magnetic properties will throw off the adjustment.
assembly. A plastic tuning tool is required. Do not use a hex wrench
as its magnetic properties will throw off the adjustment.
XCV Core
9. Balance any remaining misconvergence along the horizontal axis by
adjusting the TLV control on the top of the yoke assembly.
Green and blue line up
perfectly.
perfectly.
Red hangs down a small
amount.
amount.
10. Turn the set off, and then reconnect CN5510 on the D-board.
This completes the static convergence adjustment.
CAUTION! Do not turn the XVC core more than two full turns in
either direction.
either direction.
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