Sony KV-29FQ85E Service Manual ▷ View online
- 21 -
4-1. Electrical Adjustments
Service adjustments to this model can be performed using the
supplied remote Commander RM-943.
supplied remote Commander RM-943.
SECTION 4 CIRCUIT ADJUSTMENTS
Programming the Remote Commander for
Operation in Service Mode
Operation in Service Mode
Setting the TV into Service Mode
1.
Program the remote commander for operation in Service
Mode as described above.
Mode as described above.
2.
Turn on the TV main power switch.
3.
Press the ‘aux/video’ standby button
on the remote
commander twice.
‘TT ’ will appear in the upper right corner of the screen.
Other status information will also be displayed.
‘TT ’ will appear in the upper right corner of the screen.
Other status information will also be displayed.
4.
Press ‘MENU’ on the remote commander to obtain the
following menu on the screen.
5.
Move to the corresponding adjustment item using the
up or down arrow buttons on the Remote Commander.
up or down arrow buttons on the Remote Commander.
6.
Press the right arrow button to enter into the required menu item.
7.
Press the ‘aux/video’ button on the Remote Commander to quit
the Service Mode when all adjustments have been completed.
the Service Mode when all adjustments have been completed.
Note :
·
After carrying out the service adjustments, to prevent the
customer accessing the ‘Service Menu’ switch the TV set
OFF and then ON.
customer accessing the ‘Service Menu’ switch the TV set
OFF and then ON.
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3.
To return the remote commander to normal operation mode
repeat step 1. then press 00000. The TV LED should light.
The remote commander is now set to normal mode.
repeat step 1. then press 00000. The TV LED should light.
The remote commander is now set to normal mode.
1.
Press and hold the left Mode Select button
until the VCR and DVD LED’s flash.
until the VCR and DVD LED’s flash.
2.
Press 99999. The TV LED should light.
The remote commander is now set to
Service Mode.
The remote commander is now set to
Service Mode.
- 22 -
Sub Brightness Adjustment
1.
Input a Monoscope pattern.
2.
Program the Remote Commander for operation in Service Mode.
[ See Page 21 ].
[ See Page 21 ].
3.
Press ‘AUX/VIDEO’ ‘AUX/VIDEO’ 13 on the Remote
Commander.
Commander.
4.
Adjust the ‘Sub-Brightness’ data so that there is barely a
difference between the 0 IRE and 10 IRE signal levels.
difference between the 0 IRE and 10 IRE signal levels.
1.
Input a video signal that contains a small 100% white area on a
black background.
black background.
2.
Connect an oscilloscope to Pin 10 of J7330 [C Board].
3.
Program the Remote Commander for operation in Service Mode.
[ See Page 21 ].
[ See Page 21 ].
4.
Adjust the Sub-Contrast
[ Using ‘AUX/VIDEO’ ‘AUX/VIDEO’ ‘11’ ] to obtain a voltage
of 114 +0/- 5V.
[ Using ‘AUX/VIDEO’ ‘AUX/VIDEO’ ‘11’ ] to obtain a voltage
of 114 +0/- 5V.
Sub Contrast Adjustment
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- 23 -
Test Mode 2 is available by programming the Remote Commander for
operation in Service Mode [ As shown on Page 21 ] then pressing the
‘AUX/VIDEO’ button twice, OSD ‘TT’ appears. The functions
described below are available by selecting the two numbers. To
release ‘Test mode 2’, press 00, or switch the TV set into Stand-by
mode.
operation in Service Mode [ As shown on Page 21 ] then pressing the
‘AUX/VIDEO’ button twice, OSD ‘TT’ appears. The functions
described below are available by selecting the two numbers. To
release ‘Test mode 2’, press 00, or switch the TV set into Stand-by
mode.
4-2. TEST MODE 2:
1.
Program the Remote Commander for operation in Service Mode.
[ See Page 21 ] and enter into the ‘Geometry’ service menu,
Wide mode adjustment.
[ See Page 21 ] and enter into the ‘Geometry’ service menu,
Wide mode adjustment.
2.
Select and adjust each item in order to obtain the optimum image.
Deflection System Adjustment
Sub Colour Adjustment
1.
Receive a PAL colour bar signal.
2.
Connect an oscilloscope to Pin 5 of CN7331 [C Board].
3.
Program the Remote Commander for operation in Service Mode.
[ See Page 21 ].
[ See Page 21 ].
4.
Adjust the ‘Sub Colour’
[ Using ‘AUX/VIDEO’ ‘AUX/VIDEO’ ‘12’ ] so that the Cyan,
[ Using ‘AUX/VIDEO’ ‘AUX/VIDEO’ ‘12’ ] so that the Cyan,
Magenta and Blue colour bars are of equal levels as indicated
below.
Same Level
B-Out Waveform
V LIN
BOW
V POS
H POS
PIN AMP
V TRAP
UP COR
ANGLE
LOW COR
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D
- 24 -
5-1. BLOCK DIAGRAMS (1)
IC3600
AUDIO/VIDEO SWITCH
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
BLUE IN
MODE
GREEN IN
RED IN
BLANKING
VIDEO OUT
VIDEO IN
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
BLUE IN
MODE
GREEN IN
RED IN
BLANKING
VIDEO OUT
VIDEO IN
RIGHT OUT
RIGHT IN
LEFT OUT
LEFT IN
MODE
C IN
VIDEO OUT
VIDEO IN
C
Y/CVBS
L
R
2
9
11
13
14
15
17
18
19
20
23
24
25
26
27
28
29
30
32
33
34
35
36
37
38
39
40
41
43
45
47
49
51
54
56
58
60
62
64
BUFFER
AMP
Q3656
V-OUT-35
BUFFER
AMP
Q3657
BUFFER
AMP
Q3658
BUFFER
AMP
Q2602
BUFFER
AMP
Q2603
V-OUT-25
V-OUT-15
SC2-OUT-L
SC2-OUT-R
SPEAKER L
CN3601
CN3602
CN3603
TO H1 BOARD
CN2911
AV3
AV2
AV1
V-OUT-15
V-OUT-25
CVBS/Y MAIN
C-MAIN
SCL
SDA
MUTE
MODE 1
MODE 2
MODE 3
SPEAKER-L
SPEAKER-R
L-ANALOG RF
FRONT-L
SC3 IN-L
SC2 IN-L
SC1 IN-L
L-DIGITAL RF
FRONT-R
R-ANALOG RF
V-ANALOG RF
V-DIGITAL RF
V-IN-1
V-IN-2
V-IN-3
C-IN-3
Y/CVBS-FRONT
C-FRONT
C SLAVE
CVBS/Y SLAVE
V-OUT-35
SC3 OUT-L
SC3 OUT-R
SC1 OUT-L
SC1 OUT-R
R-DIGITAL RF
SC2-IN-R
SC3-IN-R
SC1-IN-R
MUTE
SWITCH
Q2604
9V
AC ON-OFF
V-OUT-2B
V-OUT-3B
V-OUT-1B
SPEAKER R
CVBS DIGITAL RF
CVBS/Y MAIN
C-MAIN
C SLAVE
BLUE 1
CVBS/Y SLAVE
GREEN 1
RED 1
BLK 1 FS1
GREEN 2
BLUE 2
R SPEAKER/HP
L-DIGITAL RF
BLK 2
L SPEAKER/HP
RED 2
R-DIGITAL RF
R-ANALOG RF
AV LINK
L-ANALOG RF
SDA
SCL
CVBS/ANALOG RF
35
33
32
29
26
25
23
22
20
19
17
16
15
14
12
11
10
9
7
6
4
3
1
TO A BOARD
CN3002
CN3604
LAST RF
AV3 IN R
AV2 OUT
CVBS Y MAIN
C MAIN
SCL
SDA
MUTE
MODE 1
MODE 2
MODE 3
AV2 OUT L/SPKR L
AV2 OUT L/SPKR R
ANALOG RF-L
FRONT L
AV3 IN-L
AV2 IN-L
AV1 IN-L
DIGITAL RF
ANALOG RF-R
FRONT R
AV2 I R
AV1 IN R
DIGITAL RF
AV1 OUT R
AV3 OUT R
AV3 OUT L
AV3 OUT CVBS
Y SLAVE
C SLAVE
FRONT C
AV3 IN C
FRONT Y
AV3 IN Y
AV2 IN Y
AV1 IN CVBS
DIGITAL RF
ANALOG RF
AV1 OUT L
J ( )
AV SCART I/O
SWITCHING AND
SOCKETS
1
2
3
6
7
8
11
15
16
19
20
1
2
3
6
7
8
11
15
16
19
20
1
2
3
6
8
15
19
20
1
3
5
8
CN3600
BUFFER
AMPLIFIER
Q7320, Q7321
PICTURE TUBE
CN7331
R
TO D2 BOARD
HV (T6800)
R
G
B
HV
IC7320
VIDEO OUT (BLUE)
IC7310
VIDEO OUT (GREEN)
8
VOC
IC7300
VIDEO OUT (RED)
8
9
10
13
5
HEATER
G2
RV7330
CN7330
TO D BOARD
CN8214
J7330
C
(
)
R, G, B OUT
3
VIN
1
2
3
4
5
6
9
R REF
G
G REF
B
B REF
IK
TO B BOARD
CN3400
BUFFER
AMPLIFIER
Q7300, Q7301
8
VOC
3
VIN
8
VOC
3
VIN
BUFFER
AMPLIFIER
Q7310, Q7311
BUFFER
Q7330
IK
IK
IK
5
VM
7
4
CN9401
QP (+)
QP (-)
4
7
8
2
3
VM
VM
1
QP (+)
QP (+)
QP (-)
QP (-)
VM ( )
VELOCITY
MODULATION
CN9403
QP-
QP+
VM
NECK ASSY
TO D BOARD
CN8206
VM AMPLIFIER
BUFFER
Q9413, Q9414
VM AMPLIFIER
BUFFER
Q9401, Q9402
VM AMPLIFIER
BUFFER
Q9403
VM AMPLIFIER
BUFFER
Q9404
VM AMPLIFIER
BUFFER
Q9406
VM AMPLIFIER
BUFFER
Q9405
VM AMPLIFIER
BUFFER
Q9407
VM AMPLIFIER
BUFFER
Q9408
2
CN9402
TO B BOARD
CN3402
VM AMPLIFIER
BUFFER
Q9409
VM AMPLIFIER
BUFFER
Q9410
VM AMPLIFIER
OUTPUT
Q9411
VM AMPLIFIER
OUTPUT
Q9412
DYNAMIC
FOCUS
T8900
D2 ( )
14
G2
16
FV
1
18
19
12
15
13
HV
17
8
9
7
10
5
6
4
3
11
HV OVERSHOOT
PROTECT
Q6808, Q6809
SS RESET
Q6804,
Q6806
ABL
PROTECT
Q6810
8
4
DYNAMIC
FOCUS
Q8900
1
3
7
5
6
1
2
3
BUFFER
Q6801
16
12
1
9
15
2
Q6802,
Q6803
RECT+
V SENSE
F/B
VG(H)
VS
VG(L)
IC6802
DRIVER
AC-HOP-VCC
1
IC6801
PROTECTION IC
IC6800
IC6803
SWITCHING
MOSFET
CATHODE
REF
T6800
4
HV-PROT
HPROT
CN6803
SMART MODE,
DEFLECTION
4
CN6802
TO G BOARD
CN6007
OCP
RECT-
1
3
2
1
2
3
IC6804
CONTROLLER
7
5
6
4
2
PH6800
PHOTOCOUPLER
1
7
3
4
1
2
DF DRIVE
EPG MODE
AC MONITOR
NOT
USED
ABL-COMP
TO A BOARD
CN6900
TO D BOARD
CN8900
CN6801
DYNAMIC
FOCUS
Q8901
2
+9V
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