Sony KP-51DS1U Service Manual ▷ View online
– 33 –
KP-51DS1U
RM-892
SECTION 5
SAFETY RELATED ADJUSTMENT
When replacing the following components marked with
] on
the schematic diagram, always check hold-down voltage and if
necessary re-adjust.
5-1. HV HOLD-DOWN ADJUSTMENT
1. Remove CN810. Connect HV meter to HV Block.
2. Connect External Power Supply to CN810 2 pin (+135 V)
and 1 pin (GND).
Part Replaced (
])
E Board
C515,
C516,
C554,
D504,
D507,
L506,
Q502,
R1,
R514,
R516,
R517,
T502,
T504 (FBT)
G Board
IC6008
Part Replaced (
[)
R1
3. Turn on the set.
4. Slowly up the supply voltage from 135 V to 155 V.
5. Receive dot picture and set PICTURE/BRIGHTNESS to
4. Slowly up the supply voltage from 135 V to 155 V.
5. Receive dot picture and set PICTURE/BRIGHTNESS to
minimum.
6. Slowly up the voltage until hold-down circuit works (pic-
ture disappear).
7. Read the HV meter of peak HV voltage.
Spec : 34.5 ±0.75 KV
8. If Hold-down voltage is less than 33.75 KV then solder
R1 = 820 K.
9. If hold-down voltage is over than 35.25 KV then take-off
R514 and solder R1 = 9.1 K.
+
–
2
CN810
Power
Supply
Supply
1
E BOARD
– CONDUCTOR SIDE –
CN810
CN505
CN505
R1
Fig. 5-1
Fig. 5-2
Fig. 5-3
Fig. 5-4
Remove the cap off
from the unused
terminal and connect a
static voltmeter there.
from the unused
terminal and connect a
static voltmeter there.
– 34 –
KP-51DS1U
RM-892
6-1. HOW TO ENTER THE SERVICE MODE
6-1-1. Adjustment Method with Commander
1. Turn on the main power switch of the set and enter into
standby mode.
2. Press the following sequence of buttons on the Remote
Commander.
Service adjustment to this model can performed with the sup-
plied remote commander RM-892.
plied remote commander RM-892.
“TT - -” will appear in the top right corner of the screen.
Other status information will also be displayed.
Other status information will also be displayed.
PICTURE ADJUSTMENT
AFC Mode
1
0 - 3
Ref Position
2
0 - 3
SCP BGR
1
0 - 3
SCP BGF
1
0 - 3
Trap F0
9
0 - 15
Sub Contrast
8
0 - 15
Sub Colour
4
0 - 15
Sub Brightness
16
0 - 63
Green Drive
16
0 - 63
Blue Drive
39
0 - 63
Green Cutoff
6
0 - 15
Blue Cutoff
12
0 - 15
Gamma
0
0 - 3
Pre / Overshoot
3
0 - 3
Y Delay
6
0 - 7
D Pic
ON
ON/OFF
D Colur
ON
ON/OFF
DC Transfer
OFF
ON/OFF
TEST MENU
Picture Adjustment
Geometry
Wide
IC Status
MSP
Dynamic Convergence
Current TV Status
Convergence
Geometry
Wide
IC Status
MSP
Dynamic Convergence
Current TV Status
Convergence
SECTION 6
REGISTRATION ADJUSTMENTS
Enter the
“TT MODE”
5
(DIGIT 5)
(VOLUME +)
(TV MODE)
ON SCREEN
DISPLAY
( )
RM 892
PROGR
MENU
1
4
7
2
5
8
0
3
6
9
VIDEO
TV
TV STANDBY
ON SCREEN
DISPLAY
DISPLAY
SMART/4:3/
ZOOM/WIDE
ZOOM/WIDE
MUTE
TV MODE
VOLUME +
JOYSTICK
SONY
RM-892
OK
TV
4. Move to the corresponding adjustment using the joystick
( or : up or down) on the commander.
5. Move the joystick to the right ( ) to enter the selected
adjustment.
6. Press “
(OK)” to exit.
7. Before TURN OFF is necessary:
DATA WRITE : Press “
(MUTE)” + “-”
DATA COPY
: Press “
(ON SCREEN DISPLAY)”
+ “-”
8. Turn off the power to quit the service mode when adjust-
ments are completed.
Picture Adjustment
6-1-2. Screen Display on the Test Menu
3. Press “MENU” on the commander to obtain the following
menu on the screen.
– 35 –
KP-51DS1U
RM-892
GEOMETRY ADJUSTMENT
Wide Smart
4:3
Zoom
V Size
50
50
50
50
0 - 63
V Position
31
31
31
31
0 - 63
S Correction
7
7
7
7
0 - 15
V Linearity
7
7
7
7
0 - 15
H Size
40
40
40
40
0 - 63
H Position
12
12
8
12
0 - 15
Pin Amp
20
20
20
20
0 - 63
Pin Phase
8
8
8
8
0 - 15
AFC Bow
7
7
7
7
0 - 15
AFC Angle
7
7
7
7
0 - 15
EHT V
0
0
0
0
0 - 3
EHT H
0
0
0
0
0 - 3
Lo Corn Pin
2
2
2
2
0 - 15
Up Corn Pin
5
5
5
5
0 - 15
WIDE ADJUSTMENT
Wide
Smart
Zoom
V Aspect
0
15
47
0 - 63
V Scroll
31
31
30
0 - 63
Upper V Lin
0
0
0
0 - 15
Lower V Lin
0
0
0
0 - 15
Left Blanking
15
15
15
0 - 15
Right Blanking
15
15
15
0 - 15
Geometry (
*
: No need to adjust)
IC STATUS (CXA2076 / CXA2040)
CXA2076
H lock
1
IKR
1
V NG
0
XRAY
0
Colour System
7
CV1 Sync
0
CXA2040
Sync Sep
1
S1 Mode Pin
01
S2 Mode Pin
01
PORT EXPANDER
Power Good
0
TUNER
Tuner Status
01100010
MSP ADJUSTMENT
SDR
SDR
1
CONCCT
0
FAWCTIST
12
AGC On / Off
ON
ON/OFF
Constant Gain CDB
0
0 - 20
FM Prescale FMP
36
0 - 127
Zwei Mono-St WHI
36
0 - 127
Zwei St-Mono WLO
18
0 - 127
Zwei Mono-Bi WMH
36
0 - 127
Zwei Bi-Mono WLO
18
0 - 127
Time Zwei WML
41
0 - 127
FAWCT Limit
10
0 - 127
FAWCT Soll Init FAW
12
0 - 127
FAW ER Tol
2
0 - 127
NICAM Err Max CCT
10
0 - 127
NICAM Err Min
0
0 - 127
Time NICAM
26
0 - 127
Audio Clock ACO
HIZ
ON/HIZ
SCART Prescale
25
0 - 127
SCART Volume
64
0 - 127
NICAM Prescale I
127
0 - 127
NICAM Prescale L
97
0 - 127
NICAM Prescale BG
97
0 - 127
NICAM Prescale DK
97
0 - 127
IC Status
DYNAMIC CONVERGENCE
Range
0
0 - 42
H stat
0
OFF - 63
H amp l
0
OFF - 63
H amp r
0
OFF - 63
Up Y
0
OFF - 63
Low Y
0
OFF - 63
Y up l
0
OFF - 63
Y up r
0
OFF - 63
Y low l
0
OFF - 63
Y low r
0
OFF - 63
Mbow up l
0
OFF - 63
Mbow up r
0
OFF - 63
Mbow low l
0
OFF - 63
Mbow low r
0
OFF - 63
V stat
0
OFF - 63
MSP
Dynamic Convergence
*
*
*
Wide (
*
: No need to adjust)
*
*
*
*
*
*
*
*
*
*
– 36 –
KP-51DS1U
RM-892
OSD
00
CHSW
00, 01
01
HATCH DISPLAY
00 : Internal Pattern (Crosshatch)
01 : External Pattern
00 : Internal Pattern (Crosshatch)
01 : External Pattern
01
OSH
01 ~ 32
10
OSD H Position
02
OSV
01 ~ 32
10
OSD V Position
03
VMRK
00, 01
00
V SIZE MARKER
ON / OFF (cannot write to NVM)
ON / OFF (cannot write to NVM)
SFT
00
SFTE
00, 01
00
SHIFT ENABLE
00 : Disable 01 : Enable
00 : Disable 01 : Enable
01
SFTF
00, 01
00
SHIFT FAST
00 : Normal 01 : Quick (cannot write to NVM)
00 : Normal 01 : Quick (cannot write to NVM)
GH
00
GSEL
00, 01
00
00
00
OSD SELECT FOR GH, GV
CXP86213
00 : Green+Red 01 : Green
01
CENT
–127 ~ +127
31
24
28
GREEN H CENTER
02
SKEW
–127 ~ +127
05
05
05
GREEN H SKEW
03
BOW
–127 ~ +127
05
06
08
GREEN H BOW
04
4BOW
–127 ~ +127
–01
–01
–01
GREEN H 4th BOW
05
SIZE
–127 ~ +127
01
24
04
GREEN H SIZE
06
LIN
–127 ~ +127
–24
13
–22
GREEN H LINEARITY
07
MSIZ
–127 ~ +127
–04
–61
–04
GREEN H MID SIZE
08
MLIN
–127 ~ +127
00
02
00
GREEN H MID LINEARITY
09
KEY
–127 ~ +127
–07
–06
–10
GREEN H KEYSTONE
10
SSKW
–127 ~ +127
03
03
05
GREEN H SUB SKEW
11
MPIN
–127 ~ +127
–02
–05
–05
GREEN H MID PINCUSHION
12
PIN
–127 ~ +127
–09
–15
–27
GREEN H PINCUSHION
13
SBOW
–127 ~ +127
06
07
14
GREEN H SUB BOW
14
MBOW
–127 ~ +127
04
04
04
GREEN H MID BOW
15
4PIN
–127 ~ +127
03
02
06
GREEN H 4th PINCUSHION
16
4SBO
–127 ~ +127
01
02
02
GREEN H 4th SUB BOW
6-1-3. Service List (Convergence)
Item
Number
Adjustment
Item
Data
Range
Initial Data
Wide
Smart Zoom
Name / Description
Device
TV STATUS RE-2D(TT09)
Text System
C Text-2
Dolby Enabled
No
DSP Present
No
Text Language Set
WEST
Menu Language Set
WEST
Destination
UK
Ageing
Disabled
Auto Shut Off
Enabled
Size
PJ
Colour Trap Sw
ALL
Velocity Mod
On
AFT Status
Window
Digital PF
No
Attenuation
Off
Partial Digital Off
Enabled
Digital Tuning Mode
2K
Micro/Jungle
SDA5250/CXA2076
Current TV Status
Convergence
OSD
00
50
CHSW
00
Adjustment Item
Data
Depends on the signals
PAL, SECAM : 50
NTSC
NTSC
: 60
Item No.
Mode
Mode
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