Sony KP-43T70K / KP-43T70T / KP-48VS70K / KP-53VS70K / KP-53VS70T Service Manual ▷ View online
– 36 –
KP-43T70K/43T70T/48VS70K/53VS70K/53VS70T
RM-Y906K
RM-Y906
RM-Y906K
RM-Y906K
RM-Y906
[RED REGISTRATION ADJUSTMENT]
<RED CENTER>
1. Change to VPNT mode and set VPNT 28 RON to “001”, 29
GON to “001” and 30 BON to “000” to show the green and
red colors.
2. Change the VPNT mode to the PJE mode.
3. Press 3 key on the remote commander to shift the GRN
mode to the RED mode.
4. Select RED CENT with the 1 and 4 keys on the remote
commander.
5. Adjust the red crosshatch lines go straight vertically and
horizontally and overlaps the green lines with the joystick on
the remote commander.
<RED SKEW>
1. Select RED SKEW with the 1 and 4 keys on the remote
commander.
2. Adjust the red crosshatch lines go straight vertically and
horizontally and overlaps the green lines with the joystick on
the remote commander.
<RED LINEARITY>
1. Select RED SIZE (vertically and horizontally) or RED LIN
(vertically) with the 1 and 4 keys on the remote com-
mander and adjust while tracking each other alternately.
2. Adjust the red crosshatch lines go straight vertically and
horizontally and overlaps the green lines with the joystick on
the remote commander.
<RED KEY>
1. Select RED KEY with the 1 and 4 keys on the remote
commander.
2. Adjust the red crosshatch lines go straight horizontally and
overlaps the green lines
with the joystick on the remote commander.
<RED PINCUSHION>
1. Select RED PIN with the 1 and 4 keys on the remote
commander.
2. Adjust the red crosshatch lines go straight horizontally and
overlaps the green lines with the joystick on the remote
commander.
<FINE ADJUSTMENT>
1. Press 9 key on the remote commander to shift to the fine
adjustment mode.
The red marker (in the RED mode) appears on the center of the
screen.
2. Use the 1 and 4 keys or the joystick on the remote com-
mander, move the marker everywhere you want to adjust and
adjust with the joystick on the remote commander.
[BLUE REGISTRATION ADJUSTMENT]
1. Change to VPNT mode and set VPNT 28 RON to “001”, 29
GON to “001” and 30 BON to “001” to show full color.
2. Change the VPNT mode to the PJE mode.
3. Press 3 key on the remote commander to shift the RED mode
to the BLU mode.
4. Adjust BLU CENT, BLU SKEW, BLU SIZE, BLU LIN, BLU
KEY and BLU PIN in the same procedure of the red registra-
tion adjustment.
[FINAL CHECK]
1. Store the new adjustment (offset) value on the remote control
by pressing [MUTING] and [ENTER].
2. Press the FLASH FOCUS button on the front panel.
(The Offset value is now automatically stored.)
3. Check that no error message appears.
If an error message appears, recheck.
– 37 –
KP-43T70K/43T70T/48VS70K/53VS70K/53VS70T
RM-Y906K
RM-Y906
RM-Y906K
RM-Y906K
RM-Y906
* In case of multiple error, last error is displayed.
[SENSOR POSITION]
• ERROR CODE SCREEN DISPLAY
* Error code will be displayed on center of screen for 3 seconds.
E 11 B
E 11 B
R. G. B
SENSOR NUMBER
ERROR CODE 10
ERROR
3
0
2
1
SCREEN
0 : UPPER SENSOR
1 : LEFT SENSOR
2 : RIGHT SENSOR
3 : LOWER SENSOR
• ERROR CODE DISPLAY IN REGI SERVICE MODE
PJE 2 9 1 4 0
ERR
ERR
ITEM NUMBER-29
ERROR CODE 40
SENSOR NUMBER
(ONLY "10"or "20")
(ONLY "10"or "20")
R.G.B
G-0 (Blank)
R-1
B-2
R-1
B-2
3-11. AUTO REGISTRATION ERROR CODE LIST
00
No Error
10
Sensor Output Level Low
* Check wiring, beam position, sensor.
0 : Upper Center
1 : Middle Left
2 : Middle Right
3 : Lower Center
20
Sensor Output Level High
* Check OP-amp circuit.
0 : Upper Center
1 : Middle Left
2 : Middle Right
3 : Lower Center
30
Adjustment Loop Counter Overflow
* Check the data go far from the standard or not.
40
Regi Data Overflow
* Check the data go far from the standard or not.
50
Regi Data Overflow
* Check the data go far from the standard or not.
60
Offset Overflow
* Check the data go far from the standard or not.
70
Offset Overdrow
* Check the data go far from the standard or not.
ERROR
DISCRIPTION
NOTE
CODE
[ERROR CODE LIST]
– 38 –
KP-43T70K/43T70T/48VS70K/53VS70K/53VS70T
RM-Y906K
RM-Y906
RM-Y906K
RM-Y906K
RM-Y906
Remove the cap off from
the unused terminal and
cpmmect a static voltmeter
there.
the unused terminal and
cpmmect a static voltmeter
there.
SECTION 4
SAFETY RELATED ADJUSTMENTS
4-1. HV REGULATION CIRCUIT CHECK AND
ADJUSTMENT
When replacing the following components marked with
on the schematic diagram always check HV regulation, and
if necessary re-adjust.
on the schematic diagram always check HV regulation, and
if necessary re-adjust.
:
C517
:
C517, C521, C522
IC654, L504
T502, T504 (FBT)
D.Y, A board, G board
IC654, L504
T502, T504 (FBT)
D.Y, A board, G board
[ G BOARD]
4-2. HV HOLD DOWN CIRCUIT OPERATION
CHECK AND ADJUSTMENT
When replacing the following components marked with
on the schematic diagram always check hold-down voltage
and if necessary re-adjust.
on the schematic diagram always check hold-down voltage
and if necessary re-adjust.
:
R536, R545
:
C516, C536
D506, D507, D522
IC206, IC502, IC654
L504, R511, R522, R536, R538, R545,
R548, R584
T502, T504 (FBT)
D.Y, A board, G board
D506, D507, D522
IC206, IC502, IC654
L504, R511, R522, R536, R538, R545,
R548, R584
T502, T504 (FBT)
D.Y, A board, G board
Fig. 4-1
OPERATION CHECK
1. Connect a HV static voltmeter to the unconnected plug of
the high-voltage block. (Fig.4-1)
2. Power on the set.
3. Receive the dot signal. (PICTURE and BRIGHTNESS to
3. Receive the dot signal. (PICTURE and BRIGHTNESS to
minimum)
4. Check that the HV static voltmeter is reading 31.00
±
1.0
kVdc.
1.5
HV Regulation adjustment
1. Connect a HV static voltmeter to the unconnected plug of
the hight-voltage block.
2. Power on the set.
3. Receive the dot signal. (PICTURE and BRIGHTNESS to
3. Receive the dot signal. (PICTURE and BRIGHTNESS to
minimum)
4. If anode voltage is 31.95kV or higher, replace C517 of 470PF/
2kV with that of 1000PF/2kV, and check if the voltage is
within the standard range.
within the standard range.
5. If anode voltage is 29.45kV or lower, replace C517 of 470PF/
2kV with that of 100PF/2kV, and check if the voltage is within
the standard range.
the standard range.
OPERATION CHECK
1. Remove CN652 connecter.
2. Short-circuit across TP-PROT and ground.
3. Connect a HV static voltmeter to the unconnected plug of
2. Short-circuit across TP-PROT and ground.
3. Connect a HV static voltmeter to the unconnected plug of
the high-voltage block.
4. Connect a 220
Ω
/200W variable resistor, across pin
2 and
pin
1 of CN652 and connect an external dc power supply
unit (200V, class 2A) to pin
3 of CN652.
5. First turn on the external power supply (+B=135V), then turn
on the power of the set.
6. Receive the dot signal. (PICTURE and BRIGHTNESS to
minimum)
7. Gradually increase the value of the external dc power supply
and check that the hold-down circuit operates at a static volt-
meter reading of 33.5
meter reading of 33.5
±
1.0kVdc when the raster disappears.
HV HOLD-DOWN ADJUSTMENT
1. Repart steps
1 ~ 7 as above.
2. If hold down voltage is 34.5kV or higher, remove R536,
mount a resistor (150k
Ω
, 1/4W : RN) onto R545 instead, and
check again if the hold-down voltage is within the standard
range.
range.
3. If hold down voltage is 32.5kV or lower, mount a resistor
(220k
Ω
, 1/4W : RN) onto R536 and check again if the hold-
down voltage is within the standard range.
NOTE
: Please finish the adjustment as soon as possible
4-3. +B MAX VOLTAGE CONFIRMATION
The following adjustments should always be performed when
replacing IC654.
1. Supply 130VAC to with variable autotransformer.
2. Input a dot signal.
3. Set the PICTURE control and the BRIGHTNESS controls to
replacing IC654.
1. Supply 130VAC to with variable autotransformer.
2. Input a dot signal.
3. Set the PICTURE control and the BRIGHTNESS controls to
minimum.
4. Confirm the voltage of G BOARD TP135V is less than
137.0Vdc.
5. If step 4 is not satisfied, replace IC654 and repeat above steps.
– 39 –
KP-43T70K/43T70T/48VS70K/53VS70K/53VS70T
RM-Y906K
RM-Y906
RM-Y906K
RM-Y906K
RM-Y906
4-4. +B OVP CONFIRMATION
1. Connect an external dc power supply to TP OVP.
2. Supply 120VAC to variable autotransformer.
3. Set PICTURE and the BRIGHTNESS controls to minimum.
4. Gradually turn the external dc power supply, and check if
2. Supply 120VAC to variable autotransformer.
3. Set PICTURE and the BRIGHTNESS controls to minimum.
4. Gradually turn the external dc power supply, and check if
OVP works properly when the voltage of the external dc
power supply is between 139.0 ~ 155.0V.
power supply is between 139.0 ~ 155.0V.
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