Sony KD-34XBR2 Service Manual ▷ View online
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KD-34XBR2
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).
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. Enter the service mode.
1. Enter the service mode.
2. If the CRT or defl ection yoke was replaced, set the data as shown
below:
Device Name
Adj. Item #
Name
Data
D-CONV
0
SBHS
31
D-CONV
1
YBWU
31
D-CONV
2
YBWL
31
D-CONV
3
RSAP
31
D-CONV
4
RUBW
31
D-CONV
5
RLBW
31
D-CONV
6
LSAP
31
D-CONV
7
LUBW
31
D-CONV
8
LLBW
31
3. Display the cross-hatch pattern.
4. While observing the horizontal convergence, unplug connector CN5510
on the D-board.
The horizontal convergence should not shift. If it does shift, reconnect
CN5510 and make the following adjustment:
CN5510 and make the following adjustment:
Device Name
Adj. Item #
Name
Data
D-CONV
9
CADJ
*
Adjust as necessary so that the horizontal convergence is the same
regardless if CN5510 is plugged in or not.
regardless if CN5510 is plugged in or not.
5. Write the data to memory.
6. Make sure CN5510 is plugged in.
7. Remove the bow from the top and bottom of the vertical lines in the
cross-hatch pattern.
Device Name
Adj. Item #
Name
Data
D-CONV
1
YBWU
*
D-CONV
2
YBWL
*
* Adjust as necessary to minimize the bow (separation).
8. Write the data to memory.
6. DYNAMIC 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 cross-hatch pattern.
NTSC generator with cross-hatch pattern.
NOTE: Throughout these adjustment procedures you will be instructed to “Write the data to memory”. To do this, follow this procedure:
1. Press the “MUTE” button (“WRITE” appears in green letters at the top right corner of the screen).
2. Press the “ENTER” button (“WRITE” changes from green to red, then “WRITE” changes to “SERVICE”).
CN5510
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KD-34XBR2
9. Converge the vertical lines at the sides of the screen.
Device Name
Adj. Item #
Name
Data
D-CONV
3
RSAP
*
D-CONV
6
LSAP
*
RSAP affects the
right side.
right side.
LSAP affects the
left side.
left side.
If the side horizontal convergence can't be
achieved, the neck assembly may be too far
forward or too far rearward. Refer to the
Mechanical Pre-adjustments section.
achieved, the neck assembly may be too far
forward or too far rearward. Refer to the
Mechanical Pre-adjustments section.
10. Write the data to memory.
11. Remove the bow from the right and left side top and bottom of the
vertical lines in the cross-hatch pattern.
Device Name
Adj. Item #
Name
Data
D-CONV
4
RUBW
*
D-CONV
5
RLBW
*
D-CONV
7
LUBW
*
D-CONV
8
LLBW
*
* Adjust as necessary to minimize the bow (separation).
RUBW affects
this corner.
this corner.
LLBW affects this
corner.
corner.
RUBW affects
this corner.
this corner.
LUBW affects this
corner.
corner.
12. Write the data to memory.
13. Check the convergence in the ZOOM, WIDE ZOOM, and HD1080i
modes. Only minor touchups are allowed, as they affect the other
modes. Make minor adjustments as necessary as described in the
sections 5.7 to 5.12.
modes. Make minor adjustments as necessary as described in the
sections 5.7 to 5.12.
14. Copy the FULL mode convergence adjustments to the normal mode
as follows:
a) Select adjustment category “D-CONV”.
b) Select adjustment item # 10 “COPY 2”.
c) Change the data from “0” to “1”.
d) Press “MUTING” and then press “ENTER”.
15. Select the NORMAL mode.
16. Adjust the NORMAL mode convergence as described in items 7 to
12.
This completes the dynamic convergence adjustment.
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KD-34XBR2
SECTION 7. PICTURE QUALITY ADJUSTMENTS
Perform these adjustments as necessary.
REQUIRED EQUIPMENT: NTSC generator with 100 IRE 100% color bar pattern or 75 IRE 75% color bar pattern (composite video and RF output).
NOTE: Throughout these adjustment procedures you will be instructed to “Write the data to memory”. To do this, follow this procedure:
1. Press the “MUTE” button (“WRITE” appears in green letters at the top right corner of the screen).
2. Press the “ENTER” button (“WRITE” changes from green to red, then “WRITE” changes to “SERVICE”).
7-1. DTV SUB-CONTRAST ADJUSTMENT
SET-UP CONDITION:
Picture mode: PRO
Color: Minimum
Picture: Maximum
Picture mode: PRO
Color: Minimum
Picture: Maximum
INITIAL DATA:
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
PROCEDURE:
1. With set turned off, connect an oscilloscope to pin # 1 (R) of CN9001
1. With set turned off, connect an oscilloscope to pin # 1 (R) of CN9001
on the C-board.
2. Display the 1080i color bar pattern from the TV’s internal pattern
generator as follows:
a) Turn the set on and select the VHF-UHF antenna.
b) Tune the TV to channel 2.1 (“two point one” not “twenty one”).
Use the decimal point button on the remote. It’s OK if there is
no signal on channel 2.1.
Use the decimal point button on the remote. It’s OK if there is
no signal on channel 2.1.
c) Turn the TV off.
d) Enter the service mode.
e) Select adjustment category “DTV”
f) Select adjustment item # 1 “PATN”.
g) Change the data from “0” to “4”. The 1080i color bar pattern will
appear in a few seconds. The 1080i pattern automatically forces
the TV into the FULL mode.
appear in a few seconds. The 1080i pattern automatically forces
the TV into the FULL mode.
3. Select adjustment category “2150P-2”, item # 1 “RGBS”, and change
the data from 7 to 4 (this turns off the blue and green).
4. Select adjustment category “2150P-4”, item # 0 “SCON”, and change
the data so that the voltage difference between the peak white level
and black level is 2.25 V +/- 0.05 V.
and black level is 2.25 V +/- 0.05 V.
Black
VR2
VR1
White
VR1 – VR2 =
∆
VR = 2.25 V
±
0.05 V
p-p
50mv/div.
5uS/div.
5uS/div.
5. Write the data to memory.
6. Select adjustment category “2150P-2”, item # 1 “RGBS”, and change
the data from 4 to 7 (this turns the blue and green on).
This completes the DTV sub-contrast adjustment.
7-2. DTV SUB-COLOR AND SUB-HUE
ADJUSTMENT
ADJUSTMENT
SET-UP CONDITION:
Picture mode: PRO
Color: Factory default (press the RESET button while in PRO mode
adjustment menu).
Picture: Maximum
Picture mode: PRO
Color: Factory default (press the RESET button while in PRO mode
adjustment menu).
Picture: Maximum
INITIAL DATA:
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
PROCEDURE:
1. With set turned off, connect an oscilloscope to pin # 5 (B) of CN9001
1. With set turned off, connect an oscilloscope to pin # 5 (B) of CN9001
on the C-board.
2. Display the 1080i color bar pattern from the TV’s internal pattern
generator (refer to section 7-1. item 2).
3. Select adjustment category “2150P-4”, item # 1 “SCOL”, and adjust
the data so that VB1 and VB4 in the waveform meets the spec. shown
below.
below.
4. Select adjustment category “2150P-4”, item # 2 “SHUE”, and adjust
the data so that VB2 and VB3 in the waveform meets the spec. shown
below.
below.
VB1 VB2 VB3 VB4
SCOL: VB1
≤
VB4 (=VB1 + 0 ~ 90mV)
SHUE: VB2
≤
VB3 (=VB2 + 0 ~ 90mV
50mv/div.
5uS/div.
5uS/div.
5. Write the data to memory.
This completes the DTV sub-color and sub-hue adjustment.
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KD-34XBR2
7-3. ANALOG VIDEO SUB-CONTRAST
ADJUSTMENT
ADJUSTMENT
SET-UP CONDITION:
Picture mode: PRO
Color: Minimum
Picture: Maximum
Display mode: FULL
Picture mode: PRO
Color: Minimum
Picture: Maximum
Display mode: FULL
INITIAL DATA:
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
PROCEDURE:
1. With set turned off, connect an oscilloscope to pin # 1 (R) of CN9001
1. With set turned off, connect an oscilloscope to pin # 1 (R) of CN9001
on the C-board.
2. Enter the service mode.
3. Display a color bar pattern through the video-1 input.
4. Select adjustment category “2150P-2”, item # 1 “RGBS”, and change
the data from 7 to 4 (this turns off the blue and green).
5. Select adjustment category “2150P-4”, item # 0 “SCON”, and change
the data so that the voltage difference between the peak white level
and black level is 2.25 V +/- 0.05 V for 100 IRE color bars, or 1.7 V +/-
0.05 V for 75 IRE color bars.
and black level is 2.25 V +/- 0.05 V for 100 IRE color bars, or 1.7 V +/-
0.05 V for 75 IRE color bars.
Black
VR2
VR1
White
100 IRE color bars
VR1 – VR2 =
VR1 – VR2 =
∆
VR = 2.25 V
±
0.05 V
p-p
75 IRE color bars
VR1 – VR2 =
VR1 – VR2 =
∆
VR = 1.7 V
±
0.05 V
p-p
50mv/div.
5uS/div.
5uS/div.
6. Write the data to memory.
7. Select adjustment category “2150P-2”, item # 1 “RGBS”, and change
the data from 4 to 7 (this turns the blue and green on).
This completes the analog video sub-contrast adjustment.
7-4. ANALOG VIDEO SUB-COLOR AND SUB-
HUE ADJUSTMENT
HUE ADJUSTMENT
SET-UP CONDITION:
Picture mode: PRO
Color: Factory default (press the RESET button while in PRO mode
adjustment menu).
Picture: Maximum
Display mode: FULL
Picture mode: PRO
Color: Factory default (press the RESET button while in PRO mode
adjustment menu).
Picture: Maximum
Display mode: FULL
INITIAL DATA:
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
Cat. 2150P-1, item #4 “RDRV”, data = 45.
Cat. 2150P-1, item #7 “RCUT”, data = 41.
PROCEDURE:
1. With set turned off, connect an oscilloscope to pin # 5 (B) of CN9001
1. With set turned off, connect an oscilloscope to pin # 5 (B) of CN9001
on the C-board.
2. Enter the service mode.
3. Display a color bar pattern through the video-1 input.
4. Select adjustment category “2150P-4”, item # 1 “SCOL”, and adjust the
data so that VB1 and VB4 in the waveform meets the spec. shown
below.
below.
5. Select adjustment category “2150P-4”, item # 2 “SHUE”, and adjust
the data so that VB2 and VB3 in the waveform meets the spec. shown
below.
below.
VB1 VB2 VB3 VB4
SCOL: VB1
≤
VB4 (=VB1 + 0 ~ 90mV)
SHUE: VB2
≤
VB3 (=VB2 + 0 ~ 90mV
50mv/div.
5uS/div.
5uS/div.
6. Write the data to memory.
This completes the analog video sub-color and sub-hue
adjustment.
adjustment.
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