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Model
KV-DW32K9H
Pages
127
Size
19.32 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-dw32k9h.pdf
Date
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– 69 –
KV-DW32K9H
RM-970
5-3. HV PROTECTOR CIRCUIT ADJUSTMENT
When replacing the following components marked with 
 on
the schematic diagram always check hold-down voltage and if
necessary re-adjust.
: RV8001, RV8003
: D8014
IC8001
R8021, R8028, R8077, R8078, R8080,
R8081
T8001 (FBT)
D board
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. Receive the dot signal.
4. Set PIC MIN/BRT MIN.
5.Turn RV8001 and RV8003 counterclockwise.
6. Adjust VR8002 to the 34.30 
± 0.3kVDC reading on the static
   voltmeter.
7. After adjustment, turn RV8001 and RV8003 clockwise slowly, and
stop if the HV.PROT circuit works.
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.
: RV8002
: C8037, C8064
IC8002, IC8003, IC8004
R8072, R8073, R8074, R8091, R8095,
PH8001
T8001 (FBT)
D board
HV REGULATION ADJUSTMENT
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 30.5 
± 0.5kVDC.
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 of CN5509 Pin  9  is 135.3 
± 1.0 dc.
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,Q8008
R8027, R8029, R8030, R8031, R8035, R8036,
R9037, R9038, R8039, R8040, R8041
D board
1. Unsolder T8001 (FBT) Pin 1 and connect a DC current meter
between Pin 1 and the pattern.
2. Remove a lead wire connected to CN201 Pin 1 on A1 board
and apply 12VDC to A1 board side from an external DC
power supply.
3. Short circuit C8015.
4. Turn power on, feed the dot signal and set the picture and
brightness to minimum.
5. 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 2440uA.
6. Turn power off.
7. Release C8015 short-circuit.
8. Short circuit C8012.
9. Turn power on, feed the dot signal and set the picture and
brightness to minimum.
10. 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 2440uA.
11. Turn power off.
12. Release C8012 short-circuit.
13. Remove the DC current meter and the external DC power
supply and solder the unsolder portions.
2
0
KV-DW32K9H
RM-970
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM (1)
– 71 –
– 72–
1
AC OUT
LINE
FILTER
BUFFER
BUFFER
BUFFER
BUFFER
BUFFER
BUFFER
AC OUT
2
CN603
CN601
CHECK
CHECK
2
1
CN605
DGC
DGC
3
1
CN607
DG
DG
3
1
DGC2
DGC1
T601/T602
T603
D601
Q602
3
STBY 5V
STBY 7V
PRE ST7V
4
5
STBY 15V
6
UCOM-STT
7
DGC-RLY
8
CN610
1
R/C TRANS
PRE AC
3
CHARGE
5
CHARGE
7
7
5
3
CHARGE
CHARGE
PRE AC
R/C TRANS
1
CN608
3
UCOM-STT
STBY 5V
4
STBY 7V
5
CN609
1
AC OUT
2
1
2
AC OUT
CN606
AC SW
AC SW
CN611
Q603
Q604
RY601
TH601
220V
AC IN
60Hz
F1
A
2
AC SW
1
AC SW
B
Q714
Q714
Q714
PH2603
S4301
Q8025
Q714
VCOM-STT
SRTBY 5V
STBY 7V
CN6401
3
4
5
ST
H8
CN202
   
   
   
    
    
V1
L1
R1
V2
L2
R2
V1
A1
A2
Y1
A3
C1
B3
S11
A4
S1
A5
Y3
B5
S13
A6
C3
B6
S3
A7
V3
A8
V4
B8
DEC-SW
B12
D2PR
B13
D2PB
B14
D2Y
B15
D1PR
B16
D1PB
B17
D1Y
A20
D2L
A21
D1L
B21
D1R
B22
D2R
A23
L OUT
A24
R OUT
A25
V OUT
A26
CTLS IN
A27
CTLS OUT
A28
L4
B28
R4
B29
L3
A30
R3
A31
R1
B31
L1
J2406
J2405
CN2401
U1
S1
3
1
1
DTV(HD)/DVD
1080i/720p/480p/480i
2
C
S1
J2411
J2410
J2402
J2401
     
4
L
Y
P
B
/C
B
P
R
/C
R
R
L
Y
P
B
/C
B
P
R
/C
R
R
KV-DW32K9H
RM-970
– 74 –
–73 –
BLOCK DIAGRAM (2)
A2
B2
A3
B3
A4
B4
A6
A7
A8
A10
A11
A12
A22
A23
A24
B24
A25
B25
A26
B26
A27
B27
A28
A29
A30
B30
A31
B31
A32
BS-V
DET
BS-R
BIT
BS-L
AFC
SUBTU-V
SIBTU-R
SUBTU-L
MAINTU-V
MAINTU-L
CTLS-OUT
CTLS-IN
YUV-SW
LINE-MUTE
X-ST
BEEP
X-SW
DEC-IN
DAT1
CLK1
MID-BUSY
DAT1BS
BINT
CLK1BS
3D/GR-RST
MAINTU-R
L
VIDEO
BUFFER
BUFFER
BUFFER
R
TU001
R OUT
L OUT
DET OUT2
AFT OUT
BIL LED
ST LED
SDA
SCL
SCL1
SCL1
SDA
SCL
AFT OUT
ST LED
BIL LED
M1
M2
M1
M2
R OUT
L OUT
OUT VIDEO
SCL
TU002
( MAIN TUNER )
( SUB TUNER )
Q015
SCL1
CDA1
Q012
DGC-RLY
UCOM-STT
8
7
B
SP-MUTE1
VP
Q005
R
L
SCL1
SDA1
DAT1BS
SCK1BS
1
3
DGC MUTE
DH MUTE
CN6011
CN003
CN705
CN701
IC701
MAIN
SYSTEM CONTROL
83 MAIN M2
63 MAIN BIL
85 MAIN ST
MAIN MOD1
57
58 MAN M1
93 MAIN AFT
4
AGC
YUV SW
78
84
X ST
26
BEEP
52
X-SW
42
MID BUSY
90
MID BINT
21
YS
22
YM
32
OSD R
33
OSD G
34
OSD B
37
DH MUTE
BS RST
71
ANT
91
SUB M1
60
69 SUB MODE1
SUB AFT
92
SUB ST
81
SUB BIL
27
SUB M2
86
NASY
77
51 GR RST
6
GR SW
Q712
D708
GR SW
6
GR RST
51
Q721
Q705,706
STB-SW
87
88
STB-CONT
Q718
Q701,702,703,707
49 STBY LED
7
IR IN
KEY
94
48 BS LED
BUFFER
BUFFER
BUFFER
BUFFER
OSD H
97
95
OSD V
Q722
20 V SYNC/WAKE
UV-SAVE
89
BS REC
35
+9V
4
5
7
40 VM LEVEL
DAT0
30
29 CLK0
CLK0
DAT0
XTAL
15
13 XTAL
X702
10MHz
RESET
12
RESET
4
IC702
SP-MUTE
65
Q714
MUTE SW
Q718
Q724
D707
D706
67
P-MUTE
D704
61
HP-MUTE
D703
79
LINE-MUTE
2
1
6
HP VOL
3
72
MAIN RLY
ACRLY
69
NORMAL
39
WP
47
47
WP
39
NORMAL
69
ACRLY
Q717
NVM RST
50
Q726,728
Q727,729
8
7
NVM
IC707
DAT0
CLK0
6
5
A0
WP
CLK
DAT
AUDIO PROT
SET ON
2
1
CN7003
4
PROT 1
4
CN703
1
2
CLK0/B CLK
DAT/B DAT
+B OVP
NVM 5V
+B OCP
5
7
8
8
6
NORMAL
WP
MAIN RLY
AC RLY
2
1
CN702
CLK0
STBY BV
PRE ST7V
DAT0
3
P-SW(-)
F
X
G
H
I
A1(1/2)
VIDEO
OVP DET
OCP DET
L/R
VIDEO
B-INT
41
2
OUT
CN4301
STRO LED
STBY LED
7
5
SIRCS
3
KEY
6
KEY WAKE
8
5
7
3
6
8
D4306
D4305
D4304
+5V
+9V
KEY
CN4404
2
2
CN4302
KEY WAKE
3
3
IC4301
IR RECEIVER
S4401 S4402 S4404
S4405 S4406
H7
H8
Q4410,4411
BUFFER
TH4301
4
EN-DET
Y
Q4301,4302
SWITCH
CN4303
CN5801
To DH BOARD 
( KEY INPUT )
POWER SWITCH, LED
IR RECEIVER
(
)
TUNER, SYSTEM CONTROL 
CN610
To F1 BOARD 
CN3203
To B2(2/2) BOARD 
CN5804
To DH BOARD 
CN6503
To D(2/2) BOARD 
CN6506
To D(2/2) BOARD 
CN6504
To D(2/2) BOARD 
KV-DW32K9H
RM-970
– 75 –
– 76 –
BLOCK DIAGRAM (3)
PHONES AMP
Y/C JUNGLE
DC-DC CONVERTER DRIVE 
CN4501
To H3 BOARD 
CN6501
To D(2/2) BOARD 
CN5505
To D(1/2) BOARD 
CN5501
To D(1/2) BOARD 
CN3203
To D(2/2) BOARD 
CN5503
To D(1/2) BOARD 
CN5509
To D(1/2) BOARD 
CN5003
To DEFLECTION
( VIDEO OUT )
( VM OUT )
( Y/C  JUNGLE, POWER SUPPLY, AUDIO OUT )
YOKE
To D(1/2) BOARD 
Q
J
M
L
F
K
N
O
Q9109,9014
CN204
CN202
V901
CN9001
R OUT
G OUT
B OUT
D6012
D6010
D6013
D6011
2.7MHz
X201
A1(2/2)
RF 5V
3
3.3V
BS 5V
UNREG 7V
SET 9V
RF 9V
UNREG 17.5V
UNREG 11V
SET 5V
BS 9V
5
4
5
4
O
O
IC6003
I
O
IC6005
I
O
O
IC6006
I
IC6002
3
1
PH6001
O
O
IC6007
I
O
O
IC6008
I
O
IC6009
I
13
O
O
I
IC6010
2
T6003
9
10
11
4
15
7
14
Q6007
+9V
Q6008
8
VC1
IC6001
15
16
VS
VG(H)
9
OCP
12
VG(L)
F/B
2
18
1
5
3
CN6005
AC RECT+
PRI PRE 15V
AC RECT-
10
4
9
8
7
5
DAT1
CLK1
CLK/S CLK
8
CN706
3
1
7
4
BINT
SCP
HP-IN
V FBP
CN203
1
2
H CENT
H DRV
V COMP IN
H COMP IN
H PROT
V PROT
R
B
A20
HP-L
CN003
B9
B8
A14
B13
B10
SP-R
MID-YS
MID-CR
MID-CB
MID Y
B15
A15
B14
A19
HP-R
MID-VS
SP-L
MID-HS
M PIN
DF PARA
EW DRV
10
9
7
6
V PIN
N/S
5
4
V DRV-
1
ABL PS
CN201
V DRV+
3
V TIM
2
CN9102
CN9104
CN9101
V
QP+
QP-
4
VPIN-
1
VPIN+
2
VPIN-
12
6
QP-
3
VPIN+
2
VPIN+
1
VPIN-
11
QP-
4
QP+
5
QP+
6
E
7
8
E
VM
10
VM
9
Q9102
Q9101
Q9105~9108
Q9109
3
C1
CN9002
H
200V
G2
RV9002
200V
2
G2
CRT
1
H
4
R
G
B
G2-REF
Q9002,9008
2
+12V
B
G
R
B
R
G
R
G
B
IK-BUFF
SCREEN
VM OUT
VM OUT
BUFFER
R BUFFER
BUFFER
BUFFER
BUFFER
MUTE
BUFFER
7V REG
9V REG
9V REG
9V REG
5V REG
5V REG
5V REG
3.3V REG
CONVERTER
LIMITER
G BUFFER
B BUFFER
AMP
Q9007,9013,9015
Q9005,9011,IC9003
Q9004,9010,IC9002
Q9003,9009,IC9001
CLK1
DAT1
DAT1
CLK1
Q216,217
VM
3
Q215,210
10
POWER MUTE
10
7
+12V
7
1
5
8
3
1K
B-DRV
8
5
3
1
G-DRV
R-DRV
Q207
Q204
Q208
Q203
IC201
7
Q209
28
HS IN
VM MOD
G2 IN
R2 IN
B2 IN
YSYM2
SDA
SCL
CERA
33
25
26
15
2
4
5
6
34
35
36
37
43
40
V PROT
H COMP IN
H PROT
HC PARA
HDRV
V COMP IN
39
27
HP IN
SCP
53
52
54
V DRV+
V DRV-
VT IM
50
47
45
46
VSAW0
EW DRV
MP PARA
DF PARA
VSAW1 51
56
ABL IN
13
YF OFF
12
DPQT OFF
42
VS IN
22
CR IN
21
CB IN
20
Y IN
14
VM OUT
63
64
G OUT
R OUT
58
IK IN
B OUT 62
6
SDA
SCL
L IN
R OUT
R IN
L OUT
HP-R
HP-L
Q7001
Q7005
Q7013
Q7015
Q7010
17
18
5
6
IC7006
CONTROL
VOLUME
IC7003
CONTROL
VOLUME
3
2
1
7
IC7001
AP
5
28
12
21
8
2
6
4
L
R
L
7
3
R
R
L
R
L
1
3
1
6
7
Q7006
Q7007
Q7008
IC7004
5
4
3
2
HP L
CN7006
E
HP R
E
Y
R
L
L/R
L/R
L/R
R
L
R
L
R
L
Y
R-Y
B-Y
R-Y
B-Y
DAT/S DAT
9
R
L
R
L
R
L
11
Q7016
IC7005
Q7014
NC
NC
L(+)
L(-)
W(-)
R(-)
R(+)
CN7007
W(+)
R
L
8
7
6
5
4
2
1
3
Right
W
Left
SPEAKER
AUDIO OUT
IC7002
AUDIO OUT
12
11
4
2
12
7
L IN
R OUT
R IN
L OUT
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