Sony KV-HS29M90 (serv.man2) Service Manual ▷ View online
– 37 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
3-3-5. PAL RF Input
1. Enter the PAL RF color bar (White & color 75%) signal.
2. Adjust with the same manner as 3-3-2. NTSC Video Input.
(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
Adjusting Parameter :
LEFT screen
:
YCT
03 SCL
RIGHT screen
:
SYC
03 SCL
GND
VR2
VR1
VR1 – VR2 = 1.73 ± 0.07 Vp-p
VB3
VB4
VB1
VB2
VB1 = VB3 = VB4 ± 70 mV
VB2 = VB3 ± 70 mV
VB2 = VB3 ± 70 mV
3-3-4. PAL Video Input
1. Enter the PAL video color bar (White & color 75%) signal.
2. Adjust with the same manner as 3-3-2. NTSC Video Input.
(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
00 SCT
(ii) SUB HUE/SUB COL
Condition :
Category
Item
Data
SAJ
02
COL
22
Adjusting Parameter :
LEFT screen
:
YCT
03 SCL
RIGHT screen
:
SYC
03 SCL
GND
VR2
VR1
VR1 – VR2 = 1.73 ± 0.07 Vp-p
VB3
VB4
VB1
VB2
VB1 = VB3 = VB4 ± 70 mV
VB2 = VB3 ± 70 mV
VB2 = VB3 ± 70 mV
– 38 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/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.
age and if necessary re-adjust.
4-2-1. HV Protector Adjustment
(1) Input the all white signal.
(2) Turn RV8001 fully clockwise.
(3) Adjust RV8002 so that the HV voltage meets the
specification below.
KV-HS34/38 : 36.0 ±0.1 kV
KV-HS29 : 34.3 ±0.1 kV
(4) Turn RV8001 slowly and stops its rotation when the
voltage becomes fold-down.
4-2-2. HV Protector Check
(1) Input the all white signal.
(2) Adjust RV8002 so that the HV voltage meets the
specification below.
KV-HS34/38 : 35.0 ±0.1 kV
KV-HS29 : 33.3 ±0.1 kV
*: Check that the fold-down is not activated.
*: Measure the positive terminal (+) of C8002, and
check that it is Low.
(3) Short between both leads of C8006.
(4) Adjust RV8002 so that the HV voltage meets the
specification below.
KV-HS34/38 : 36.0 ±0.1 kV
KV-HS29 : 34.3 ±0.1 kV
(5) Open the positive terminal (+) of C8006 from short
circuit.
Check that the hold-down is activated.
(6) Short the positive terminal (+) of C8006.
(7) Apply 5.5 V between both leads of C8016.
Check the HV falls down.
(8) Disconnect the 5.5 V from both leads of C8016.
Check that the HV returns.
(9) After the check is finished, put the VR cover on
RV8001, and fixed it with RTV.
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.
age and if necessary re-adjust.
[
: VR8001
]
: C8016, C8037,
D8020,
IC8001, IC8002,
Q8035, Q8043,
R8042, R8072, R8078, R8079, R8091, R8095
T8005(FBT),
D board
IC8001, IC8002,
Q8035, Q8043,
R8042, R8072, R8078, R8079, R8091, R8095
T8005(FBT),
D board
[
: VR8002
]
: IC8004, IC8005, IV8006
PH8003
R8014, R8015, R8017, R8128, R8129, R8131,
R8014, R8015, R8017, R8128, R8129, R8131,
T8005(FBT)
(1) Input all black signal, and put into Full mode and
Standard.
Be sure to perform the HV adjustment within 1 to 3
minutes after the power on.
Be sure to perform the HV adjustment within 1 to 3
minutes after the power on.
(2) Adjust RV8002 so that the HV voltage meets the
specification below.
KV-HS34/38 : 32.3 ±0.1 kV
KV-HS29 : 30.3 ±0.1 kV
(3) After the check is finished, put the VR cover on
RV8002, and fixed it with RTV.
Fig. 4-1
RTV KE490
VR8001, VR8002
– 39 –
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
4-3. +B MAX VOLTAGE CONFIRMATION
(1) Supply Power Voltage
Apply the following voltage between pins 1 and 5 of
CN6604.
CN6604.
(Area)
(AC IN)
110 to 220 VAC
220 V to 242 V
240 VAC
240 V to 264 V
110 VAC
110 V to 121 V
(2) +B Voltage Check
Check that the voltage between both leads of C6688
meets the specification below.
meets the specification below.
+B Voltage = 136.3 V or less
4-4. +B OVP CONFIRMATION
(1) OVP Check
Disconnect the 220 V AC which are applied between
pin1and5 of CN6604, and apply 145 +/-1V to both
leads of C6688.
Apply 220 V AC between pins 1 and 5 of CN6604.
(Input the voltage to the dummy F Board.)
Check that the voltage of pin 7 of CN6101 (Main 12 V)
is less than or equal 0.8 V.
pin1and5 of CN6604, and apply 145 +/-1V to both
leads of C6688.
Apply 220 V AC between pins 1 and 5 of CN6604.
(Input the voltage to the dummy F Board.)
Check that the voltage of pin 7 of CN6101 (Main 12 V)
is less than or equal 0.8 V.
(2) Cancellation of Rach
Disconnect the 220 V AC which are applied between
pins 1 and 5 of CN6604. (Be sure to turn off the AC
power more than 1 second.)
pins 1 and 5 of CN6604. (Be sure to turn off the AC
power more than 1 second.)
(3) Return of OVP
Apply 220 V AC between pins 1 and 5 of CN6604.
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
– 40–
– 41–
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM
TO B4(1/2)BOARD
CN502
AA
D
B
A
+5V
POWER
S1651
TO F1 BOARD
CN1602
CN6604
TO D BOARD
CN1903
2
AC IN
AC IN
1
1
AC OUT
AC OUT
2
CN1902
(KEY INPUT)
H1
(SIRCS,LED)
S1973-S1977
S108.110.112
5V
CN1933
TO H2 BOARD
CN1196
1
KEY2 IN
+17V
HP AMP
IC2200
Q2201
MUTE
Q2200
MUTE
Q1207
MUTE
(TUNER,SYSTEM CONTROL,AUDIO AMP)
A
TO J BOARD
F
CN8304
SDA
SCL
+7.5V
BUFFER
Q105
TO H2 BOARD
K
CN1932
SPEAKER
R
L
CN5001
J
TO D BOARD
TO D BOARD
I
CN5009
CN4301
H
TO E BOARD
V-PIN
11
ABL ATT
25
SDA
24
SCL
26
22
P-MUTE
32
V PARA 1
34
V PROT
41
H PROT
CN1121
VIDEO
6
HP
3
2
VP
7
7.5V
CN1140
Y 100
18
H DEFL
23
36
V DEFL
16
U 100
14
V 100
R-OSD
11
G-OSD
9
B-OSD
7
B-100
5
R-100
3
SCP
2
50
VTIN
13
BLK
1
DPIC SW
42
MP PARA
44
DF PARA
45
ABL
40
38
EW
HP PARA
AFC PULSE
49
N/S
35
Y DRV -
31
V DRV +
29
HD
V-PIN
43
48
V PROT
7
V-SIN
1
2
H
D
4
V PARA 1
CN1162
H PROT
8
AFC PULSE
10
12
LC MUTE
11
VTIM
10
MP PARA
9
EW
7
DF PARA
HC PARA
6
NS/GND
5
V DRV +
3
4
V DRV -
CN1163
ABL
1
6
L HP
7
R HP
CN1293
GND
3
GND
2
1
L SP
4
R SP
HP MUTE
9
PLL UP
10
D001
MUTE
Q1205
MUTE
Q1206
10.5V
D1208
D1209
MUTE
Q1209,1210
MUTE
Q1211
1
3
2
7
6
5
MUTE
Q301,313
E
CN8102
TO A1 BOARD
SDA
SCL
10
SDA
8
SCL
4
ATTN L/R
20
SPACE SW
18
CENTER SW
15
L SW
11
R SW
R
L
5
7
CN1120
IC1204
L-AMP
3
9
1
IN
OUT
BOOT
MODE 10
10
MODE
BOOT
OUT
IN
1
9
3
R-AMP
IC1203
BINT
BINT
MS RST
BINT
IC003
EEP ROM
5
7
6
W6
SCL
SDA
BLUE BLANKING
Q001,004
BLUE BLANKING
Q002,003
X001
4M
EXTAL
43
XTAL
42
ATTN L/R
50
SP PROT
100
P-MUTE
25
C SW
7
S SW
6
MUTE
29
LC MUTE
98
ABLATT
26
YM
74
YS
73
HP100
69
VP100
68
SCL1
16
SDA1
15
WC
17
52
MIDBUSY
11
RXO
/BINT
12
SCL
SDA
TO D BOARD
CN5011
C
CN1161
8
7
OCP
OVP
SDA
SCL
9
10
F2
Q1906
LED
G
R
LED DRV
Q1902
LED DRV
Q1901
+5V
SIRCS
IC1901
VCC
OUT
S102.103.105
CN1901
CN1980
2
1
2
1
LED 2
LED 1
CN1190
STBY 5V
SIRCS
7
4
3
4
INV.
Q009
2
3
3
2
KEY WAKE
KEY
CN1195
SCL
SDA
OCP
5
OVP
8
LED2
23
LED1
22
SIRCS
4
KEY2
92
KS14
93
KEY1
91
SCL
14
SDA
13
VDD
VDD
RST
VIN
VOUT
5
M.R
AFT1
ST
IC002
VDD REG
4
2
AFT1
85
27 ST
18 MSP RESET
SEL 2
47
COMB RESET
33
45 SEL 1
84 AFT2
40 RESET
59
R
G
62
B
64
51
RESET100
9
HPM
SYSTEM CONTROL
IC001
SDA
SCL
SDA
SCL
SDA
SCL
SCL
SDA
2S
C
L
CN1101
B INT
4
P SCL
6
7
P
SDA
3
SDA
B6
PSDA
A6
PSCL
A3
SCL-NVM
B3
SDA-NVM
SCP
B4
R100
A5
B5
B100
A4
B INT
CN1100
SDA
B1
SCL
A1
C31
V PULSE M OUT
A10
MID BINT
CN1108
Y SUB OUT
C26
C32
H PULSE M OUT
C25
U SUB OUT
C24
V
SUB OUT
V PULSE SUB OUT
A24
H PULSE SUB OUT
C22
SUB G
C11
Y MAIN OUT
C28
U MAIN OUT
C29
V MAIN OUT
C30
C16
V
100 IN
C15
U
100 IN
C14
Y
100 IN
C13
HP 100 IN
A14
V
P 100 IN
C9
C3
MS RST
MID BUSY
SCL-B3
A20
SDA-B3
C19
DPIC SW
C17
RESET 100
C18
PWR INT
A4
7S
C
L
6S
D
A
CN1118
B
3
G
2
1R
4
BLK
A2
A1
R-SW
L-SW
C11
T
EXT B IN
C10
T
EXT G IN
C9
TEXT R IN
A19
CVBS IN(TEXT)
C12
T
EXT BLK
V PULSE MAIN IN
H PULSE MAIN IN
C27
A28
SUB G
C30
V PULSE SUB IN
C21
H PULSE SUB IN
A21
Y SUB IN
A26
U SUB IN
C24
V SUB IN
A23
C29
V
MAIN IN
A31
U
MAIN IN
C32
Y
MAIN IN
A17
C
OMP SEL2
C17
C
OMP SEL1
C20
C
OMB RESET
TV2 L OUT
C4
TVC2 OUT
A5
TVCV 1 OUT
A8
C7
TV1 L OUT
C6
TV1 R OUT
CN1180
SDA
SCL
SCL
SDA
BUFFER
Q006
Q3300
BUFFER
BUFFER
Q006
BUFFER
Q101
SCL
SDA
AFTOUT
DET OUT
L OUT
R OUT
TU3301
TU101(MAIN)
SCL
AFTOUT
NC
SDA
PLLSW
R OUT
L OUT
DET OUT
Y
B-Y
R-Y
VIDEO
AUDIO L
AUDIO R
Y
B-Y
R-Y
Y
B-Y
R-Y
VIDEO
AUDIO L/R
TO V2 BOARD
CN5801
Y
TO V2 BOARD
CN5803
Z
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