Sony KP-HR432K90 / KP-HR532K90 / KP-HR532N90 / KP-HW572K90 Service Manual ▷ View online
– 33 –
KP-HR432K90/HR532K90/HR532N90/HW572K90
RM-Y909K
RM-Y908
RM-Y909K
RM-Y909K
4-2. P & P SUB CONTRAST ADJUSTMENT (RF)
(SCON)
( ):HW572K90
1. Receive the signal.
TV terminal (main)
: Color-bar (white-75%, No
setup)
setup)
VIDEO terminal (sub) : Color-bar (white-75%, No
setup)
2. VIDEO MODE
: Pro
PICTURE
: maximum
COLOR
: minimum
RGB Signal
: off
3. Set to P & P mode, and set to service mode.
4. Connect an oscilloscope between the check point and ground.
4. Connect an oscilloscope between the check point and ground.
Check points
: CN5 pin
6
(G)
(A Board)
5. Select “ 2103-1-02 ”(Main scon), and adjust so that the wave-
form level of VWB is 2.00 (1.67)
±
0.04Vp-p.
6. Select “ 2103-2-02 ”(Sub scon), and adjust so that the wave-
form level of VWB is 2.00 (1.67)
±
0.04Vp-p.
7. Write the data into memory.
MUTING
n
ENTER
Fig. 4-2
White
VR1
VR1-VR2=VR
VR2
Pedestal
SECTION 4
CIRCUIT ADJUSTMENTS
4-1. P & P SUB CONTRAST ADJUSTMENT
(VIDEO) (SCON)
( ):HW572K90
1. Receive the signal.
TV terminal (sub)
: Color-bar (white-75%, No
setup)
setup)
VIDEO terminal (main) : Color-bar (white-75%, No
setup)
2. VIDEO MODE
: Pro
PICTURE
: maximum
COLOR
: minimum
RGB Signal
: off
3. Set to P & P mode, and set to service mode.
4. Connect an oscilloscope between the check point and ground.
4. Connect an oscilloscope between the check point and ground.
Check points
: CN5 pin
6
(G)
(A Board)
5. Select “ 2103-1-02 ”(Main scon), and adjust so that the wave-
form level of VWB is 2.00 (1.67)
±
0.04Vp-p.
6. Select “ 2103-2-02 ”(Sub scon), and adjust so that the wave-
form level of VWB is 2.00 (1.67)
±
0.04Vp-p.
7. Write the data into memory.
MUTING
n
ENTER
Fig. 4-1
White
VR1
VR1-VR2=VR
VR2
Pedestal
4-3. P & P SUB-HUE AND SUB-COLOR ADJUSTMENT
(SHUE, SCOL)
1. Receive the signal.
TV terminal (sub)
: Color-bar (white-75%, No
setup)
setup)
VIDEO terminal (main) : Color-bar (white-75%, No
setup)
2. VIDEO MODE
: Pro
PICTURE
: maximum
COLOR
: center
RGB Signal
: on
3. Set to P & P mode, set to service mode.
4. Connect an oscilloscope between pin
4. Connect an oscilloscope between pin
7
(B) of CN5 (A board)
connecter and ground.
5. Select “ 2103-1-03 SCOL, -04 SHUE ”(Main), and adjust
them to have VB1 VB4 and VB2 VB3 in the waveform
levels.
levels.
6. Select “ 2103-2-03 SCOL, -04 SHUE ”(Sub), and adjust them
to have VB1 VB4 and VB2 VB3 in the waveform levels.
7. Write the data into memory.
MUTING
n
ENTER
Fig. 4-3
VB1 VB2 VB3 VB4
<
=
<
=
<
=
<
=
4-4. P & P SUB-HUE AND SUB-COLOR ADJUSTMENT
(SHUE, SCOL)
1. Receive the signal.
TV terminal (main)
: Color-bar (white-75%, No
setup)
setup)
VIDEO terminal (sub) : Color-bar (white-75%, No
setup)
2. VIDEO MODE
: Pro
PICTURE
: maximum
COLOR
: center
RGB Signal
: on
3. Set to P & P mode, set to service mode.
4. Connect an oscilloscope between pin
4. Connect an oscilloscope between pin
7
(B) of CN5 (A board)
connecter and ground.
5. Select “ 2103-1-03 SCOL, -04 SHUE ”(Main), and adjust
them to have VB1 VB4 and VB2 VB3 in the waveform
levels.
levels.
6. Select “ 2103-2-03 SCOL, -04 SHUE ”(Sub), and adjust them
to have VB1 VB4 and VB2 VB3 in the waveform levels.
7. Write the data into memory.
MUTING
n
ENTER
Fig. 4-4
VB1 VB2 VB3 VB4
<
=
<
=
<
=
<
=
– 34 –
KP-HR432K90/HR532K90/HR532N90/HW572K90
RM-Y909K
RM-Y908
RM-Y909K
RM-Y909K
4-5. BLUE OFFSET ADJUSTMENT (HW572K90)
1. Receive the all black (1080i, component) signal with VIDEO 5
input, and set VIDEO MODE to pro and PICTURE to maximum.
2. Connect an oscilloscope between CN5 pin
7
(B) on the A board
and ground.
3. Set in the service mode and select the category “ 2150D-2 ”.
4. Adjust “ 3 SLIN ” so that the waveform level is 2.20
4. Adjust “ 3 SLIN ” so that the waveform level is 2.20
±
0.05Vp-p.
5. After adjustment finished, press “ MUTING ” +“ ENTER ”
buttons on the commander to write the data to the NVM.
6. Receive the RF signal and change the wide to mode to “ Wide
Zoom ” copy the same data to “ 3 SLIN ”.
Reference Pulse
2.20
±
0.05 Vp-p
GND
16.7ms
Fig. 4-5
– 35 –
KP-HR432K90/HR532K90/HR532N90/HW572K90
RM-Y909K
RM-Y908
RM-Y909K
RM-Y909K
5-2. 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.
necessary re-adjust.
: VR8002
: C8054, C8086, C8088, C8100, C8104,
: C8054, C8086, C8088, C8100, C8104,
C8118, C8123, C8124
D8019, D8020, D8022, D8028, D8036
FB8001
IC8008
Q8035, Q8038
R8035, R8043, R8159, R8166, R8171,
R8196, R8201
T8004 (LOT), T8005 (FBT)
HV block, D board
D8019, D8020, D8022, D8028, D8036
FB8001
IC8008
Q8035, Q8038
R8035, R8043, R8159, R8166, R8171,
R8196, R8201
T8004 (LOT), T8005 (FBT)
HV block, D board
OPERATION CHECK
1. Receive the dot signal.
2. Set PIC MIN/BRT MIN.
3. Confirm that the voltage between cathode of D8038(JW171)
2. Set PIC MIN/BRT MIN.
3. Confirm that the voltage between cathode of D8038(JW171)
and GND is more than 23.0V DC.
4. Using an external DC Power supply, apply the voltage shown
below between cathode of D8038(JW171) on “D” and GND,
then confirm that the HV-Prot circuit works.(Raster disap-
pears.)
Apply DC voltage: Less than 29.05V DC.
then confirm that the HV-Prot circuit works.(Raster disap-
pears.)
Apply DC voltage: Less than 29.05V DC.
HV HOLD-DOWN ADJUSTMENT
1. Connect a HV static voltmeter to the unconnected plug of the high-
voltage block.
2. Power on the set.
3. Connet an externel 10k
Ω
VR at CN8015 and adjust this VR so that
the high voltoge is 34.50kV.
4. Adjust VR8002 to the point that the HV-Prot circuit works (Raster
disappears) at 34.50
±
0.50kV reading on the static voltmeter.
5. After adjustment, put the VR cover on VR8002 and apply sufficient
amount of epoxy resin around VR8002 as the same manner for
VR8001.
[ G BOARD]
5-3. +B MAX VOLTAGE CONFIRMATION
The following adjustments should always be performed
when replacing IC501, R5032.
1. Supply 130VAC to variable autotransformer.
2. Receive dot signal pattern and set the PICTURE and
when replacing IC501, R5032.
1. Supply 130VAC to variable autotransformer.
2. Receive dot signal pattern and set the PICTURE and
BRIGHTNESS settings to their minimum.
3. Confirm the voltage of TP +B 135V is less than 137.0Vdc.
4. If step 4 not satisfied , replace IC501 and repeat above steps.
4. If step 4 not satisfied , replace IC501 and repeat above steps.
5-4. +B OVP CONFIRMATION
1. Add to low voltage power supply between to TP. 5001 and
ground.
2. Supply 120VAC 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 activated.
3. Power on the Set and receive dot signal pattern.
4. Set the PICTURE and BRIGHTNESS settings.
5. Check the OVP is activated.
Operate :less than 2.50V
SECTION 5
SAFETY RELATED ADJUSTMENTS
[ D BOARD]
5-1. HV REGULATION CIRCUIT CHECK AND
ADJUSTMENT
When replacing the f
ollowing components marked with
on the
schematic diagram always check HV regulation, and if neces-
sary re-adjust.
sary re-adjust.
: VR8001
: C8079, C8083, C8090, C8129, D8013, D8015
: C8079, C8083, C8090, C8129, D8013, D8015
D8038, D8043
IC8006
Q8021, R8055, R8099, R8102, R8128, R8129,
R8131, R8139, R8140, R8142, R8153, R8163,
R8223, R8230
T8004 (LOT), T8005 (FBT)
HV block, D board
IC8006
Q8021, R8055, R8099, R8102, R8128, R8129,
R8131, R8139, R8140, R8142, R8153, R8163,
R8223, R8230
T8004 (LOT), T8005 (FBT)
HV block, D board
OPERATION CHECK
1. Receive the all white signal.
2. Set PIC MAX/BRT CENT.
3. Confirm that the voltage between CN8015
2. Set PIC MAX/BRT CENT.
3. Confirm that the voltage between CN8015
1
PIN and GND
is less than 7.80VDC.
HV REGULATION ADJUSTMENT
1. Connect a HV static voltmeter to the unconnected plug of the high-
voltage block.
2. Power on the set.
3. Repeat steps 1 and 2 as above.
4. Confirm that the static voltmeter reading is 31.0
±
0.4V.
5. If not, adjust with VR8001 to the specified value.
6. After adjustment, put the VR cover on VR8001 as shown below and
apply sufficient amount of epoxy resin around VR8001.
Fig. 4-1
Remove the cap off from
the unused terminal and
connect a static voltmeter
there.
the unused terminal and
connect a static voltmeter
there.
VR8001
epoxy resin
Fig. 4-2
– 36 –
KP-HR432K90/HR532K90/HR532N90/HW572K90
RM-Y909K
RM-Y908
RM-Y909K
RM-Y909K
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM (1) (EXCEPT HW572K90)
63
62
64
8
9
11
17
19
15
16
18
24
26
28
22
23
25
60
59
61
44
41
47
53
43
52
38
40
54
45
4
5
6
10
11
18
19
23
24
25
3
5
7
7
1
2
4
32
31
BUFFER
Q8, 27
BUFFER
Q2008
BUFFER
Q2009
AMP
Q2015
AMP
Q2013
SWITCH
Q2301
AMP
Q2016
B. P. F.
Q2022, FL2001
B. P. F.
Q2017, 2020, 2025,
2027, FL2002
B. P. F.
Q2017, 2020, 2025,
2027, FL2002
H. SEP
Q21
BUFFER
Q2, 14
H. SEP
Q7
AGC
Q22
C1
A1
A3
C3
C4
C1
A1
A3
C3
C4
1
SW2
ANT SW M
MAIN TU V
MAIN TU L
MAIN TU R
SUB TU V
SUB TU L/R
MAIN TU V
MAIN TU L
MAIN TU R
SUB TU V
SUB TU L/R
RF MAIN-V
Y-IN 1
C-IN 1
V-IN 1
L-IN 1
R-IN 1
Y-IN 3
C-IN 3
SSW-IN 3
V-IN 3
L-IN 3
R-IN 3
DEC-V
DEC-L
DEC-R
RF MAIN-L
RF MAIN-R
S-V
SUB-L
SUB-R
IC2004
A/V SWITCH
IC2003
CN6
CN2001(1/2)
CN701
TU2
MAIN TUNER
TU1
SUB TUNER
MAIN Y/V OUT
MAIN C OUT
SUB Y IN
SUB C IN
SUB Y OUT
SUB C OUT
SUB V OUT
MAIN L OUT
SUB L OUT
MONITOR L OUT
MONITOR R OUT
SUB R OUT
MAIN R OUT
Y-IN 2
C-IN 2
SSW-IN 2
V-IN 2
L-IN 2
R-IN 2
SDA
SCL
DAT1
CLK1
DET OUT2
DET OUT
DET OUT
DE-EM OUT
AFT OUT
MUTE
RF AGC
SDA
SCL
SDA
SCL
STUH
AFT2
SDA
SCL
SDA
SCL
MODE
F MONO
MUTE
AFT OUT
ST LED
BIL LED
L OUT
R OUT
A26
A29
C29
A20
LINE MUTE
COMP V OUT
MN C OUT
SUB Y OUT
Q2007
Q2029
Q2005
J2001
Q2006
CN9302
CN2002
5
6
7
2
3
1
J2004
BUFFER
Q2012, 2026
VIDEO 1
IN
S VIDEO
VIDEO
AUDIO
L
R
J2005
VIDEO 3
IN
S VIDEO
VIDEO
AUDIO
AUDIO
VIDEO 5
IN
L
Y
PB
PR
R
L
R
VIDEO
AUDIO
L
R
TO
A
BOARD
SYSTEM
CONTROL
BLOCK
ANT
SW
MTU H
AFT1
ST-1
BIL-1
MOD-1
AGC
MONO-1
TU MUTE
STU H
AFT2
MTU H
AFT1
ST-1
BIL-1
AGC
MOD-1
MONO-1
TU MUTE
ANT SW M
SWITCH
Q712
6
8
5
10
3
1
V2-Y IN
V2-C IN
V2-SSW IN
V2-V IN
V2-L IN
V2-R IN
V2-Y IN
V2-C IN
V2-SSW IN
V2-V IN
V2-L IN
V2-R IN
CN2001
(2/2)
6
8
5
10
3
1
VIDEO
MONITOR
OUT
AUDIO
L
R
J2007
AUDIO OUT
(VAR/FIX)
L
R
J2006
AUDIO
VIDEO 6
IN
Y
PB
PR
R
L
A
(1/5)(TUNER)
U
(VIDEO/AUDIO IN/OUT) (EXCEPT HW572K90)
H3
(LINE IN 2)
A
TO A BOARD
CN6
DAT1
CLK1
VIDEO 4
IN
1
32
7
4
25
49
51
56
58
MULTI-V IN 10
IC2007
COMB FILTER
L1
L2
L3
L5
L6
R6
R5
R3
R2
R1
12
L OUT 1
13
1
4
2
3
22
23
R OUT 1
L OUT
R OUT
21
15
FIL 1 OUT
19
SPACE OUT
17
CENTER OUT
FIL 2 OUT
12
11
LCH OUT
3
MODE1
2
MODE2
RCH OUT
20
14
18
16
28
27
27
S-SDA
13
5
S-SCL
L IN
R IN
LCH IN
RCH IN
FIL 1 IN
SPACE IN
CENTER IN
26 CE IN
FIL 2 IN
13 FIL 2 IN 2
LSW RSW
FILTER
FILTER
MONITOR V OUT
IC2304
ATT SWITCH
IC2305
TRUSURROUND PROCESSOR
IC2001
AUDIO SELECT
C20 SUB C OUT
A31 PS-V
C31 FSC
C18 S-ATT
A24 CONT-S IN
C23 CONT-S OUT
C10 AUDIO L
C25 DAT1
C27 CLK1
A11 AUDIO R
A22 S-MODE 1
C22 S-MODE 2
A6
VARI L
C6
VARI R
A28 A MUTE
A15 D1-Y
C16 D1-CB
A17 D1-CR
A17 D1-CR
C12 D2-Y
A13 D2-CB
A13 D2-CB
C14 D2-CR
J9301
VIDEO 2
IN
S VIDEO
VIDEO
AUDIO
L
R
J2002
J2003
CONTROL S
IN
OUT
DAT1
CLK1
10
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