Sony KV-34XBR800 (serv.man2) Service Manual ▷ View online
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KV-34XBR800
NO. Name
Control Function
03 SCOL
SUB COLOR
04 SHUE
SUB HUE
2103-2
VB4
VB3
VB2
VB1
COLOR: VB1 < VB4 (=20 ± 40 mV)
HUE: VB2 < VB3 (=20 ± 40 mV)
7. Write data into memory.
2-7. WHITE BALANCE (CRT) AND SUB
BRIGHT ADJUSTMENT
Preparation
• Input an all white 480I (15.734 KHz) signal into the VIDEO 1 input
• Input an all white 480I (15.734 KHz) signal into the VIDEO 1 input
terminal to perform the White Balance (highlight, cut-off) adjustments.
The parameters to adjust are in the CXA2170P in Service Mode.
The parameters to adjust are in the CXA2170P in Service Mode.
34RSN
2-7.1. COLOR OFFSET ADJUSTMENT
PROCEDURE
Preparation:
• Input an all white (30 IRE) signal to the specifi ed input.
• Input an all white (30 IRE) signal to the specifi ed input.
• Adjust the white balance using the specifi ed registers.
VIDEO 1
CXA2103-M
NO.
Name
Control Function
20
CBO1
CB OFFSET
21
CRO1
CR OFFSET
VIDEO 5
CXA2103-M
NO.
Name
Control Function
20
CBO1
CB OFFSET
21
CRO1
CR OFFSET
VIDEO 7 - DVI
CXA2103-M
NO.
Name
Control Function
22
CBO2
CB01 (FROM VIDEO 5) - 5
23
CRO2
CR01 (FROM VIDEO 5) -4
2-8. H RASTER CENTER ADJUSTMENT
Preparation:
• Input a monoscope signal.
• Input a monoscope signal.
• Set to NTSC (DRC) mode.
1. Set to Service Mode and adjust as follows:
NO. Name
Control Function
Avg. Data
06 AGNG
AGING 1, AGING 2
2
NO. Name
Control Function
Avg. Data
02 HSIZ
Horiz Size
45
NO. Name
Control Function
Avg. Data
00 HBLK
Blanking Enable
0
CXA2150P-2
CXA2150D-2
CXA2150D-3
2. Reduce HSIZ to see sides of raster.
3. Adjust H-Center with CXA2170D-2.
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KV-34XBR800
5. Restore aging, HSIZ and HBLK to original condition.
Raster Edge Equal:
RASTER
EDGES
EDGES
RASTER
2-9. PICTURE DISTORTION ADJUSTMENTS
2-9.1. NTSC (DRC) FULL MODE
ADJUSTMENT
1. Face the picture tube in an east-west direction. (For best condition.)
2. Complete V-PIN and V-CEN adjustments fi rst (A2170-D1 06 V-PIN,
A2170-D1 05 V-CEN).
3. Input a monoscope and crosshatch signal. Adjust the picture
distortion with the following service parameters to balance the best
condition for these two signals.
condition for these two signals.
NOTE: Make sure that the picture size is within specs. Vertical size
is 11.8 ± 0.1 sq. and horizontal size is 15.8 ± 0.1 sq.
is 11.8 ± 0.1 sq. and horizontal size is 15.8 ± 0.1 sq.
4. Write data into memory before changing modes.
CXA2170D-1
Item 0. VPOS (V-POSITION)
Item 1. VSIZ (V-SIZE)
Item 3. VLIN (V-LINE)
Item 4. VSCO (VS-COR)
Item 9. HTPZ (H-TRAPEZOID)
CXA2170D-2
Item 1. HPOS (H-POSITION)
Item 2. HSIZ (H-SIZE)
Item 5. PIN (PIN AMP)
Item 7. UCP (UP COR PIN COR)
Item 8. LCP (LOW CO PIN COR)
Item 14. PPHA (PIN PHASE)
Item 15. VANG (AFC-ANGLE)
Item 16. LANG (L-ANGLE)
Item 17. VBOW (AFC-BOW)
Item 18. LBOW (L-BOW)
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KV-34XBR800
2-9.2. 1080I HD MODE ADJUSTMENT
1. Input a 1080i cross-hatch signal and an HD monoscope signal that
contains overscan markers.
2. Adjust the raster position per Section 2-8., only if this procedure was
not performed for full mode.
3. Adjust the geometry similar to Full DRC mode. Vertical size is 11.7
± 0.1 sq. and horizontal size is 15.6 ± 0.1 sq., if monoscope signal is
available. Otherwise, set the Vertical size to 91.0 ± 0.6% scan and
Horizontal size as 91.0 ± 0.6% scan.
available. Otherwise, set the Vertical size to 91.0 ± 0.6% scan and
Horizontal size as 91.0 ± 0.6% scan.
4. Use the following register to adjust the horizontal parameter:
A2150-D2
01
HPOS
NOTE: If necessary, touch up the geometry using the data register
listed above for Full mode. Check NTSC full mode for side
listed above for Full mode. Check NTSC full mode for side
effect and balance.
5. Write the data into memory before changing modes.
2-9.3. VERTICAL COMPRESSED MODE
CHECK AND CONFIRMATION
(FOR 4X3 CRT ONLY)
(FOR 4X3 CRT ONLY)
1. Input a monoscope and crosshatch signal.
2. Check vertical compressed mode.
3. Adjust VPIN if needed.
2-9.4. TWIN MODE/FAVORITE/INDEX/
NORMAL MODE GEOMETRY
CONFIRMATION
CONFIRMATION
TWIN mode and FAVORITE mode use the FULL mode adjustment data.
The key point for TWIN mode adjustment is the blue border appearance.
The left border on the left picture should not be visible when the left
picture is selected. Similarly, the right border on the right picture should
not be visible when the right picture is selected. Balance the HPOS or
HSIZ data for FULL and TWIN mode.
The key point for TWIN mode adjustment is the blue border appearance.
The left border on the left picture should not be visible when the left
picture is selected. Similarly, the right border on the right picture should
not be visible when the right picture is selected. Balance the HPOS or
HSIZ data for FULL and TWIN mode.
For INDEX mode, however, no clipping of the picture edge should be
visible for the small sampled pictures on the right side. Adjust HSIZ/
HPOS to balance FULL and INDEX mode for this. Avoid displaying the
edge of the raster in FULL or FAVORITE mode.
visible for the small sampled pictures on the right side. Adjust HSIZ/
HPOS to balance FULL and INDEX mode for this. Avoid displaying the
edge of the raster in FULL or FAVORITE mode.
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KV-34XBR800
SECTION 3: SAFETY RELATED ADJUSTMENTS
3-1. PREPARATION BEFORE CONFIRMATION
Standard ............................................................................. 135.3 ± 1 VAC
Check Condition:
AC input voltage: 120 (± 2) VAC
Note: If using a stabilized power supply, make sure that the distortion
factor is 3% or less.
Setting Mode: ............................................................................ Full mode
Signal Input: ............................................................Cross-hatch of NTSC
Initial Setting: .....................................................Standard Reset condition
Confi rm Point:............................ Across CN5509 PIN 9 for B+ of D Board
3-1.1 HOLD-DOWN
OPERATION
CONFIRMATION
1. Using an external DC power supply, apply 5.3 ± 0.5 Vdc between
Pin 2 of CN507 (jig connector) and ground (Pin 8); confi rm set goes
to hold-down (main power relay click).
to hold-down (main power relay click).
2. Remove the external DC power supply.
3-2. B+ MAX CONFIRMATION
Standard
135.3 ± 1 VAC
Check Condition:
AC input voltage: 120 (± 2) VAC
Note: If using a stabilized power supply, make sure that the distortion
factor is 3% or less.
Setting Mode: ............................................................................ Full mode
Signal Input: ............................................................Cross-hatch of NTSC
Initial Setting: .....................................................Standard Reset condition
Confi rm Point:............................ Across CN5509 PIN 9 for B+ of D Board
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