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Model
KP-FS57M31 KP-FS57M61 KP-FS57M90 KP-FS57M91 (serv.man3)
Pages
127
Size
14.1 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kp-fs57m31-kp-fs57m61-kp-fs57m90-kp-fs57m91-sm3.pdf
Date

Sony KP-FS57M31 / KP-FS57M61 / KP-FS57M90 / KP-FS57M91 (serv.man3) Service Manual ▷ View online

– 53 –
KP-FS57M31/M61/M90/M91
RM-997
ERROR
DESCRIPTION
NOTE
CODE
10
Sensor 0 low output
Check sensor 0, connection/Wiring, circuit and pattern position.
(Are patterns hitting sensor ?) Adjust V UP if necessary.
11
Sensor 1 low output
Check sensor 1, connection/Wiring, circuit and pattern position.
(Are patterns hitting sensor ?) Adjust HLE if necessary.
12
Sensor 2 low output
Check sensor 2, connection/Wiring, circuit and pattern position.
(Are patterns hitting sensor ?) Adjust HRIV if necessary.
13
Sensor 3 low output
Check sensor 3, connection/Wiring, circuit and pattern position.
(Are patterns hitting sensor ?) Adjust VLOW if necessary.
20
Sensor 0 high output
Check sensor 0 and circuit.
21
Sensor 1 high output
Check sensor 1 and circuit.
22
Sensor 2 high output
Check sensor 2 and circuit.
23
Sensor 3 high output
Check sensor 3 and circuit.
30
V center or skew adjustment
Check VMID data and check registration condition.
loop overflow
31
H center or skew adjustment
Check HMID data and check registration condition.
loop overflow
32
H linearity or size adjustment
Check HLE and HRIV data and check registration condition.
loop overflow
40
V center regi data overflow
Check VMID data and confirm V center data (all modes) is not near 511.
41
H center regi data overflow
Check HMID data and confirm H center data (all modes) is not near 511.
42
V skew regi data overflow
Check VMID data and confirm V skew data (all modes) is not near 511.
43
H skew regi data overflow
Check HMID data and confirm H skew data (all modes) is not near 511.
44
H linearity regi data overflow
Check HLE data and HRIV data and confirm H center data (all modes)
is not near 511.
45
H size regi data overflow
Check HLE and HRIV data and confirm H center data (all modes)
is not near 511.
50
V center regi data ovedrow
Check VMID data and confirm V center data (all modes) is not near 512.
51
H center regi data ovedrow
Check HMID data and confirm H center data (all modes) is not near 512.
52
V skew regi data ovedrow
Check VMID data and confirm V skew data (all modes) is not near 512.
53
H skew regi data ovedrow
Check HMID data and confirm H skew data (all modes) is not near 512.
54
H linearity regi data ovedrow
Check HLE and HRIV data and confirm H center data (all modes)
is not near 512.
55
H size regi data overdrow
Check HLE and HRIV data and confirm H center data (all modes)
is not near 512.
60
H or V center overflow
Check HMID data and check VMID data.
61
H or V skew offset overflow
Check skew adjustment.
62
H size or linearity offset overflow
Check HLE and HRIV data and check size and linearity adjustment.
70
H or V center offset ovedrow
Check HMID data and check VMID data.
71
H or V skew offset ovedrow
Check skew adjustment.
72
H size linearity offset ovedrow
Check HLE and HRIV data and check size and linearity adjustment.
80
Size limit Error
Check that horizontal size data is negative and not near zero.
ERROR CODE LIST
3-16. AUTO CONVERGENCE ERROR CODE LIST
If an error code is displayed after the set has been fully adjusted, correctly, plese check the following items : position, tilt and sizing. If
either of these adjustments are off, even slightli, the auto registration pattern will not hit the four sensors properly. This occurs when the
internal generator patterns is being flashed on the screen for the sensor to read. Therefore, auto registration (called auto  convergence)
cannot operate properly causing an error code to be displayed. In order for this function to operate properly, correct position, tilt and size
must be adjusted properly.
0 : UPPER SENSOR
1 : LEFT SENSOR
2 : RIGHT SENSOR
3 : LOWER SENSOR
SCREEN
0
3
1
2
[SENSOR POSITION]
PJE
61
133
ERR
|
Category : PJE
Item : 61 ERR
213
Error Code : (See Error List)
Color : (0=Green, 1=Red, 2=Blue)
• ERROR CODE SCREEN DISPLAY
When executing flash focus in service mode, the error will be
displayed in text format (see below).
(When select “PJE” 
b “61 ERR”.)
ERROR  G
 LO LEVEL  S3
0
3
2
1
• ERROR CODE SCREEN DISPLAY
Error codes in normal (customer) mode are not dis-
played. You must enter PJED service mode to see
the error code.
(When press “
 (AUTO CONVERGENCE)”
button.)
– 54 –
KP-FS57M31/M61/M90/M91
RM-997
SECTION  4
SAFETY  RELATED  ADJUSTMENT
4-1. HV  
REGULATION
  ADJUSTMENT
When replacing the following components marked with 
]
on the schematic diagram, always check hold-down volt-
age and if necessary re-adjust.
HV REGULATION ADJUSTMENT
1. Connect a HV static voltmeter to the unconnected plug
of the highvoltage block. (Fig.4-1)
2. Power on the set.
3. Confirm that the static voltmeter reading is
31.0 ± 0.2 kV.
4. If not, adjust with VR8001 to the specified value.
5. After adjustment, apply sufficient amound of RTV
KE490 on the VR8001. (Fig.4- 2)
HV HOLD-DOWN ADJUSTMENT
1. Connect a HV static voltmeter to the unconnected plug
of the highvoltage block. (Fig.4- 1)
2. Power on the set.
3. Connect an external 10k  VR at CN8015 and adjust
this VR so that the high voltage is 34.50 kV.
4. Confirm that the static voltmeterreading is
34.5 ± 0.4 kV.
5. If not, adjust with VR8002 to the specified value.
6. After adjustment, put the VR cover on VR8001 as
shown below and apply sufficient amound of RTV
KE490 on the VR8002. (Fig.4- 2)
4-2. HV  HOLD-DOWN  ADJUSTMENT
When replacing the following components marked with 
]
on the schematic diagram, always check hold-down volt-
age and if necessary re-adjust.
[
 : VR8001
]
 : C8054, C8086, C8088, C8100, C8104, C8118,
C8123, C8124
D8019, D8020, D8022, D8028, D8036
IC8008
Q8035, Q8043
R8043, R8159, R8166, R8171, R8196, R8201
T8004(LOT), T8005(FBT)
HV block, D board
[
 : VR8002
]
 : C8079, C8083, C8090, C8129
D8013, D8015, D8038, D8043, D8051
IC8006
Q8021
R8055, R8102, R8128, R8129, R8131, R8139,
R8140,  R8142, R8153, R8163, R8223, R8230
T8004(LOT), T8005(FBT)
HV block, D board
4-3.+B MAX VOLTAGE CONFIRMATION
The following adjustments should always be performed
when replacing IC6503.
1. Supply 220V AC to variable autotransformer.
2. Receive dot signal pattern and set the PICTURE and
BRIGHTNESS setting to their minimum.
3. Confirm the voltage of TP+B 135V is less than 137.0
Vdc.
4. If step 4 not satisfied, replace IC6503 and repeat above
steps.
4-4.+B OVP CONFIRMATION
1. Add to low voltage power supply between to TP6502
and 4 pin of IC6502.
2. Supply 220V AC to variable autotransformer.
3. Power on the Set and receive dot signal pattern.
4. Set the PICTURE and BRIGHTNESS settings.
5. Check the OVP is actived.
Operate : power supply voltage  2.70 ± 0.05 V
Fig. 4-1
RTV KE490
VR8001, VR8002
Fig. 4-2
Remove the cap off
from the unused
terminal and connect a
HV static voltmeter
there.
– 55 –
KP-FS57M31/M61/M90/M91
RM-997
Original Condition
DRC-MF
: DRC1250
PICTURE MODE : HI-FINE
3D-NR MODE
: OFF
ECO MODE
: OFF
WIDE MODE
: OFF
  Category      Item                                      Data
          50TV  50VIDEO  60TV  60VIDEO
SAJ
00 PIC
25
(HI-Fine)
02 COL
22
(HI-Fine)
06 DYC
00
(HI-Fine)
0C GMS
00
(HI-Fine)
0D GMR
00
(HI-Fine)
0E GMG
00
(HI-Fine)
0F GMB
00
(HI-Fine)
14 CLO
07
07
07
07
16 HUO
07
07
07
08
19 PIO
(TWIN)=07
13 ABT
08
JGL
03 BBT
00
04 LML
01
05 SCO
07
WHB
05 GDR
1B
08 GCT
1B
5-1. Picture Quality Adjustment
5-1-1. Preparation
1. Set in the service mode.
2. Set respective items as follows.
Adjustment Condition
DRC-MF
: DRC1250
PICTURE MODE : HI-FINE
3D-NR MODE
: OFF
ECO MODE
: OFF
WIDE MODE
: OFF
Category
Item
Data
SAJ
00
PIC
3F
02
COL
22
06
DYC
00
0C
GMS
00
0D
GMR
00
0E
GMG
00
0F
GMB
00
13
ABT
00
14
CLO
07
16
HUO
07
19
PIO
00
JGL
03
BBT
00
04
LML
03
05
SCO
07
WHB
04
RDR
1F
05
GDR
1F
06
BDR
1F
07
RCT
1F
08
GCT
1F
09
BCT
1F
3. Connect the oscilloscope probe to the following point on the
A board.
Measurement Point
A Board CN1100 :
1
 pin R100
t VR
5
 pin B100
t VB
Note : After the adjustment 5-3. Picture Quality Adjustment,
these adjustment parameters must be recovered to the
original condition.
SECTION  5
ELECTRICAL  ADJUSTMENTS
– 56 –
KP-FS57M31/M61/M90/M91
RM-997
5-1-3. NTSC RF Input
1. Enter the NTSC RF color bar (White & color 75%) signal.
(i) SUB CONTRAST
Condition :
Category
Item
Data
SAJ
00
PIC
3F
02
COL
00
19
PIO
00
Adjusting Parameter :
LEFT screen
:
YCT
04 SCT
RIGHT screen
:
SYC
04 SCT
(ii) SUB HUE/SUB COL
Condition :
Category
Item
Data
SAJ
02
COL
22
16
HUO
07
Adjusting Parameter :
LEFT screen
:
YCT
03 SCL
00 TNT
RIGHT screen
:
SYC
03 SCL
00 TNT
VB3
VB4
VB1
VB2
VB1 = VB4 ± 70 mV
VB2 = VB3 ± 70 mV
GND
VR2
VR1
VR1 – VR2 = 1.73 ± 0.07 Vp-p
(ii) SUB HUE/SUB COL
Condition :
Category
Item
Data
SAJ
02
COL
22
16
HUO
07
Adjusting Parameter :
LEFT screen
:
YCT
0A COL
00 TNT
RIGHT screen
:
SYC
0A COL
00 TNT
5-1-2. NTSC Video Input
1. Enter the NTSC video color bar (White & color 75%) signal.
2. Enter the service mode, and set respective items as follows.
3. Measure waveform, and each item is adjusted to become the
following figure.
4. Press “
 (SWAP)” button on the commander, when the left
screen and the right screen are changed.
5. After adjustment finished, press “
 
(MUTE)” + “-” but-
ton to write the data to the NVM.
(i) SUB CONTRAST
Condition :
Category
Item
Data
SAJ
00
PIC
3F
02
COL
00
19
PIO
00
Adjusting Parameter :
LEFT screen
:
YCT
08 YOL
RIGHT screen
:
SYC
08 YOL
GND
VR2
VR1
VR1 – VR2 = 1.73 ± 0.07 Vp-p
VB3
VB4
VB1
VB2
VB1 = VB4 ± 70 mV
VB2 = VB3 ± 70 mV
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