Sony KV-HX32M31 (serv.man2) Service Manual ▷ View online
– 53 –
KV-HX32M31
RM-1008
5-3. HV PROTECTOR CIRCUIT CHECK
When replacing the following components marked with
on
the schematic diagram always check hold-down voltage.
: RV8002
: D8014
: D8014
IC8001
R8016, R8019, R8046, R8052, R8072,
R8078, R8079, R8165
T8001 (FBT)
D board
R8016, R8019, R8046, R8052, R8072,
R8078, R8079, R8165
T8001 (FBT)
D board
1. Connect a HV static voltmeter to the unconnected plug of the high-
voltage block.
2. Power on the set.
3. Receive the dot signal.
4. Set PIC MIN/BRT MIN.
5. The set turns off (the protector circuit activates) at the 36.6kVDC
or less reading on the static voltmeter.
6. After that, adjust the item 5-2 (Return to 31.5kVDC).
SECTION 5
SAFETY RELATED ADJUSTMENTS
5-2. HV REGULATION CIRCUIT 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.
: RV8002
: IC8004, IC8005,
: IC8004, IC8005,
R8014, R8015, R8017
PH8003
T8001 (FBT)
D board
PH8003
T8001 (FBT)
D board
1. Connect a HV static voltmeter to the unconnected plug of the high-
voltage block.
2. Power on the set.
3. Receive the dot signal.
4. Set PIC MIN/BRT MIN.
5. Confirm that the static voltmeter reading is 31.5
± 0.3kVDC.
6. If not, adjust with RV8002 to the specified value.
[ D BOARD]
5-1. +B MAX VOLTAGE CONFIRMATION
1. Supply 242
± VAC to variable autotransformer.
2. Receive dot signal pattern and set the PICTURE and
BRIGHTNESS settings to their minimum.
3. Confirm the voltage between the both sides of C6512 on D
board is 137.0 V dc or less.
5-4. IK PROTECTOR CIRCUIT CHECK (D BOARD)
When replacing the following components marked with / on the
schematic diagram, always check IK protector circuit.
:
D8004
IC8001
Q8007
R8027, R8030, R8035,R8037
R8038, R8039, R8040, R8041, R8043,
D board
IC8001
Q8007
R8027, R8030, R8035,R8037
R8038, R8039, R8040, R8041, R8043,
D board
1. Unsolder T8001 (FBT) Pin 1 and connect a DC current meter
between Pin 1 and the pattern.
2. Remove R0494 (MG MOUNT).
3. Feed the all white signal, increase the picture and brightness
3. Feed the all white signal, increase the picture and brightness
slowly and check the hold-down works when the reading on
the DC current meter is 2670uA.
the DC current meter is 2670uA.
4. Turn power off.
5. Remove the DC current meter and set R0494 solder the
5. Remove the DC current meter and set R0494 solder the
unsolder portions.
2
0
KV-HX32M31
RM-1008
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM (1)
J1502
J1501
J1504
J1509
J1508
J1510
J1505
X1501
J1503
UG (REAR INPUT/OUTPUT)
4MHz
L1
L2
L3
L4
L5
L6
R1
R2
R3
R4
R5
R6
S1
S4
Y1
C1
V1
V2
V3
V4
C4
Y4
V5 Y
V5 PB
V5 PR
V6 Y
V6 PB
V6 PR
V7 L/H
Y1
Y4
C4
V4
C1
V1
V2
V3
V5 Y
V5 PB
V5 PR
V6 Y
V6 PB
V6 PR
V7 L/H
S1
S4
S7
L1
L2
L3
L4
L5
L6
R1
R2
R3
R4
R5
R6
MS-R
MS-L
MAIN-R
MAIN-L
MT-L
MT-R
M_BDAT
M_BDAT
M_BCLK
M_BCLK
HOLDN
HOLDN
BINT
BINT
SCP
SCP
R/G
R/G
B
B
MS-R
MS-L
MAIN-R
MAIN-L
MT-L
MT-R
MAIN_Y/CV
MAIN_C/PB
MAIN_PR
MAIN_Y/CV
MAIN_C/PB
MAIN_PR
S7
R OUT
L OUT
V OUT
R OUT
L OUT
V OUT
V7 R/V
V7 R/V
ST-L
ST-L
– 55 –
– 56 –
KV-HX32M31
RM-1008
BLOCK DIAGRAM (2)
SUB_VD
SUB_HD
DRC_LW
DRC_FILM
DRC_PXI
DRC_PXN
SCP
B
R/G
RGB
YS
Y
RESET
FFSW
MID_VD
MID_HD
MID_PR
MID_PB
MID_Y
MID_YS
:B TO B
50P
:BTOB
10P
CN2015(2/2)
CN2005
CN2004(2/2)
CN2003(2/2)
CN2011
CN2007(2/2)
CN2006
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
50
49
48
47
46
45
44
43
38
36
34
33
32
31
30
29
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
50
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
2
1
4
3
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
A
CN5006
TO D BOARD
TO UG BOARD
CN1502
TO D BOARD
CN5004
CN5005
TO D BOARD
CN0001
TO MG BOARD
CN3001
TO BH BOARD
CN0002
TO MG BOARD
MT_VIDEO
MT_L
MT_R
VAR/FIX_L
VAR/FIX_R
L_MUTE
MAIN_L
MAIN_R
M_SCLK
M_SDAT
SUB_Y
SUB_HD
SUB_VD
SUB_PR
SUB_PB
MAIN_PR
MAIN_PB
MAIN_Y
Q2000
MS_R
MS_L
PF_SCLK
PF_SDAT
ID
RESET
FFSW
DRC_LW
DRC_FILM
DRC_PXI
DRC_PXN
MID_HD
MID_VD
MID_PR
MID_PB
MID_Y
MID_YS
ID
PF_SDAT
PF_SCLK
SUB_HD
SUB_VD
SUB_PR
SUB_PB
SUB_Y
MAIN_Y
MAIN_PB
MAIN_PR
MS_R
MS_L
L_MUTE
MAIN_R
MAIN_L
VAR/FIX_L
VAR/FIX_R
AUDIO_PROT
HP_MUTE
SP_MUTE
PRE_SP_R
PRE_SP_L
PRE_SP_WF
M_SCLK
M_SDAT
MT_SAP
MT_STEREO
MT_HSYNC
MT_AFT
ABL
V_DRV+
V_DRV
HC_PARA
DF_PARA
EW_PARA
MP_PARA
AFC_PLS
H_PROT
HV_PROT
V_PROT
H_DRV
H_DRV
HV_PROT
V_PROT
H_PROT
AFC_PLS
MP_PARA
EW_PARA
DF_PARA
HC_PARA
V_DRV
V_DRV+
ABL
R/G
B
SCP
Y
RGB
YS
PF_SDAT
PF_SCLK
ID
MT_HSYNC
MT_FMONO
MT_SAP
MT_AFT
ST_AFT
MT_AGC
AUDIO_PROT
SP_MUTE
HP_MUTE
PRE_SP_R
PRE_SP_L
PRE_SP_WF
M_SDAT
M_SCLK
+12V
GND
ST_HSYNC
MAIN_R
L_MUTE
MAIN_L
MT_STEREO
ST_STEREO
ST_SAP
MT_MODE
AUDIO_MUTE
AUDIO_GND
AUDIO_GND
GND
DF DAC
AUDIO_GND
GND
GND
GND
VAR/FIX_L
VAR/FIX_R
SUB BYPASS SW
GND
GND
GND
N.C
GND
MID_VD
MID_HD
GND
GND
GND
MID_Y
GND
GND
SUB_VD
SUB_HD
GND
GND
GND
SUB_Y
FFSW
DRC_LW
RESET
DRC_PXI
DRC_PXN
GND
GND
GND
GND
GND
MID_YS
DRC_FILM
PF_SCLK
PF_SDAT
GND
MAIN_Y/CV
MID_PR
MID_PB
MAIN_PR
SUB_PR
SUB_PB
ID
MAUN_C/PB
MS_R
MS_L
GND
B
ABL
GND
GND
GND
GND
GND
MP_PARA
EW_PARA
DF_PARA
HC_PARA
V_DRV
V_DRV+
H_DRV
RESET
SIRCS
PF_SCLK
PF_SDAT
H_PROT
V_PROT
DRC_PXI
DRC_PXN
HV_PROT
MID_Y
SUB_OSD_RGB
SUB_OSD_YS
SUB_SLICER_Y
MAIN_Y/CV
H_PLS
MID_HD
GND
SUB_HD
SUB_VD
MID_VD
MID_YS
AFC_PLS
MID_PB
MID_PR
FFSW
DRC_LW
DRC_FILM
GND
GND
GND
ID
GND
BINT
SCP
R/G
GND
GND
H PROT
HV PROT
V PROT
GND
H DRV
GND
HOLDDOWN
AFC PLS
GND
GND
ABL
MP_PARA
EW_PARA
DF_PARA
HC_PARA
V_DRV+
V_DRV
NC
L_MUTE
GND
PF_SCLK
PF_SDAT
GND
MAIN_L
GND
MAIN_R
ST_CV
GND
GND
MT_L
GND
MT_R
GND
MAIN_Y/CV
MAIN_C/PB
MAIN_PR
SUB_Y
SUB_PB
SUB_OSD_YS
SUB_OSD_RGB
BINT
B
R/G
SCP
SIRCS
GND
GND
SUB_PR
ST L
MT_CV
SUB_HD
SUB_VD
GND
GND
M_SDAT
M_SCLK
GND
BYPASSSW/ST_R
VAR/FIX_R
VAR/FIX_L
MS_L
MS_R
ID
HOLDN
SUB_SLICER_Y
DFDAC
H_PLS
VIDEO
AUDIO L
AUDIO R
AUDIO L
AUDIO R
VIDEO
B
R
Y
Y
B
R
AUDIO L
AUDIO R
AUDIO L
AUDIO R
VIDEO
AUDIO L/R
G
DET OUT
DE OUT
L OUT
R OUT
AFT OUT
ST LED
MT_AFT
MT_STELEO
MT_SAP
TU2000
MAIN
TUNER
BIL LED
MODE
F MONO
RF AGC
SCL
SDA
M
M
Q2010
Q2007
AUDIO L
AUDIO R
VIDEO
MT_HSYNC
IC2000
L
R
AUDIO AMP
10
18
6
3
5
23
21
Q2005
Q2006
Q2008
PROTECT
4
3
2
1
G
L OUT
G
R OUT
CN2001
PRE SP L
PRE SP R
SP MUTE
AUDIO PROT
A
B
C
D
E
F
(1/2)
(TUNER,AUDIO AMP)
-
-
-
-
-Y
-Y
-Y
-Y
-SCLK
-SDAT
Q2001
MUTE
AUDIO L
AUDIO R
AUDIO L
AUDIO R
5
– 58 –
– 57 –
KV-HX32M31
RM-1008
– 59 –
– 60 –
BLOCK DIAGRAM (3)
1
2
AC IN
AC IN
CN6001
AC100V
50/60Hz
CN6100
DGC
DGC
3
1
DGC
DGC
1
3
DGC
DGC
CN6101
L6000
L6001
TH6001
F6000
RY6100
RY6000
AC IN
AC IN
1
4
CN6006
CN6005
1
4
9
8
7
T6101
D6005
D6113
D6116
D6117
D6114
DY6100
P.CONT
DY6000
Q6104
OFF TIMER
Q6110
Q6112
ZERO DET
Q6107
+7V
REGURATOR
DGC
STBY 7V
IC6100
5V REG
Vcc
OUT
STBY 5V
MS 3.3V
2
1
RECT
RECT +
CN6000
49
26
3
STBY 5V
5V
MAIN 9V
CN2015(1/2)
7
8
9
6
5
4
2
5V
MS 3.3V
+MS 3.3V-DET
5V
3.3V
3.3V
MAIN 9V
CN2004(1/2)
35
MAIN 9V
CN2005(1/2)
45
42
41
40
39
37
35
28
27
26
25
12V
ZERO DET
3.3V
DGC
STBY 5V
B OCP
P CONT
B OVP
UV SAVE
5V
BS REC
CN2003(1/2)
8
7
3
1
SET ON
12V
BS 9V
MAIN 33V
CN2012
9
8
7
2
1
+B OCP
+B OVP
AC RLY
15VA
15VA
CN2011
6
5
2
1
AUDIO
AUDIO
AUDIO+14V+22V
AUDIO+14V+22V
CN2017
24V
M 33V
(TUNER)
IC6300
+9V
SWITCHING
REGULATOR
+5V
SWITCHING
REGULATOR
IC6201
IC6202
+3.3V
SWITCHING
REGULATOR
POWER CONTROL
LATCH
Q6105,6108
PF 9V
PF 5V
BS 5V
DVI 5V
3.3V
+B_OVP
5V
BS 9V
MAIN 9V
BS 9V
2
1
RECT
RECT +
CN6000
TO UG BOARD
CN1502
TO BH BOARD
CN3001
TO MG BOARD
CN0001
TO MG BOARD
6
4
1
MAIN_12V
135V
CN5019
5
4
2
1
15VA
MAIN_12V
CN5012
7
3
1
MAIN_12V
BS 9V
MAIN 33V
CN5007
CN0002
9
8
2
1
+B OCP
+B OVP
15VA
15VA
CN5006
6
5
2
1
AUDIO 14V 22V
AUDIO 14V 22V
AUDIO
AUDIO
CN5017
BS 9V
135V
PH6700
MAIN CONTROL
IC6503
CONTROL
O
I
12V REG
IC6501
MAIN 12V
D6510
D6504
24V
Q6803
OCP
D6805
D8005
D6803
IC6801
+B OVP
T6400
Q6802
OVP SW
Q6400
CONVERTER
Q6401
CONVERTER
IC6400
DRIVER
16
15
12
2
9
VS
VG(H)
VD
VG
F/B
OCP
11
12
16
17
18
7
9
1
2
4
8
10
2
4
4
2
2
4
1
1
1
1
2
3
D6409
D6410
D6509
D6511
6
1
AC
HAIF +B
VC1
18
D6508
D6502
A
D
CN9100
TO W BOARD
8
AC OUT
AC OUT
4
1
2
1
CHECK
CHECK
CN6102
(N)
(L)
,Q6111
,Q6109
-
(NC)
-14V
-24V
-14V
-24V
-14V
-
-12V
-12V
-15VA
-14V
-22V
-14V
-22V
-15V
+15VA
-24V
(L)
-HOP Vcc
(2/2)
(POWER SUPPLY)
(POWER SUPPLY)
(1/2)
TO SF
1
2
TO D
TO D(2/2)
2/2)
(
H
TO H4 BOARD
CN1054
I
TO H4 BOARD
CN1055
Q6103
RELAY DRIVE
Q6102
RELAY DRIVE
Click on the first or last page to see other KV-HX32M31 (serv.man2) service manuals if exist.