Sony KP-43T70K / KP-43T70T / KP-48VS70K / KP-53VS70K / KP-53VS70T Service Manual ▷ View online
– 40 –
KP-43T70K/43T70T/48VS70K/53VS70K/53VS70T
RM-Y906K
RM-Y906
RM-Y906K
RM-Y906K
RM-Y906
5-1. TV INPUT SUB CONTRAST ADJUSTMENT
(VPNT-SCON)
1. Receive the color-bar signal.
2. Mode
2. Mode
: Personal 1 or 2.
PICTURE
: maximum
COLOR
: minimum
BRIGHTNESS
: center
TRINITONE
: medium
ABL
: CN801 pin
4open
SERVICE DATA VPNT SCON
: 7
3. Set to service mode.
4. Connect an oscilloscope between pin
4. Connect an oscilloscope between pin
7 of CN204 (A board)
and ground.
5. Select “ VPNT-SCON ”, and adjust so that the wave from
level is 1.80
±
0.05Vp-p.
6. Write the data into memory.
MUTING n ENTER
White
1.80
±
0.05Vp-p
Black
Fig. 5-1
SECTION 5
CIRCUIT ADJUSTMENTS
5-2. VIDEO INPUT SUB-HUE AND SUB-COLOR
ADJUSTMENT (VPNT-SHUE, SCOL)
1. Select VIDEO1 input and supply the color-bar signal.
2. Mode
2. Mode
: Personal 1 or 2.
PICTURE
: maximum
COLOR
: center
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA VPNT-SHUE
: 7
SERVICE DATA
VPNT-SCOL
: 7
3. Set to service mode.
4. Connect an oscilloscope between pin
4. Connect an oscilloscope between pin
5 of CN204 (A board)
connecter and ground.
5. Select “ VPNT-SHUE, SCOL ”, and adjust them to have VB1
= VB4 and VB2 = VB3 in the waveform levels.
6. Increase SCOL by 2 steps.
7. Write the data into memory.
7. Write the data into memory.
MUTING n ENTER
VB1 VB2 VB3 VB4
Fig. 5-2
5-3. COMPONENT INPUT SUB-HUE AND SUB-COLOR
ADJUSTMENT (DAC-UVSH, UVSC)
1. Select VIDEO 4 and supply the color-bar signal.
VIDEO input
2. Mode
: Personal 1 or 2.
PICTURE
: maximum
COLOR
: center
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA DAC UVSH
: 31
SERVICE DATA
DAC UVSC
: 31
3. Set to service mode.
4. Connect an oscilloscope between pin
4. Connect an oscilloscope between pin
5 of CN204 (A board)
connecter and ground.
5. Select “ DAC-UVSH, UVSC ”, and adjust them to have VB1
= VB4 and VB2 = VB3 in the waveform levels.
6. Write the data into memory.
MUTING n ENTER
VB1 VB2 VB3 VB4
Fig. 5-3
5-4. P & P SUB CONTRAST ADJUSTMENT
(SC-SYDR)
1. Receive the signal.
TV terminal (sub)
: color-bar signal
VIDEO terminal (main) : no signal
2. Set to service mode and set to P & P mode.
3. Connect an oscilloscope between pin
3. Connect an oscilloscope between pin
7 of CN204 (A board)
and ground.
4. Select “ SC-SYDR ”, and adjust so that the wave from level
is 1.65
±
0.05Vp-p.
5. Write the data into memory.
MUTING n ENTER
White
1.65
±
0.05Vp-p
Black
Fig. 5-4
– 41 –
KP-43T70K/43T70T/48VS70K/53VS70K/53VS70T
RM-Y906K
RM-Y906
RM-Y906K
RM-Y906K
RM-Y906
5-7.
PIP POSITION ADJUSTMENT
(PI-PIPH, PIPV)
1. Set the PIP mode.
2. Receive the monoscope signal on the main/sub picture.
3. Check the sub picture position.
2. Receive the monoscope signal on the main/sub picture.
3. Check the sub picture position.
X1-X2
0.25sq
X1-X2
0.25sq
4. If necessary set to service mode and adjust "PIPH", "PIPV".
5. Write the data into memory.
5. Write the data into memory.
MUTING n ENTER
Fig. 5-7
5-5.
SUB-HUE , SUB-COLOR AND MAIN
CONTRAST ADJUSTMENT (MC-MYDR,
MSHU, MSCL, SC-SSHU, SSCL)
1. Receive the color-bar signal.
2. Mode
2. Mode
: Personal 1 or 2.
PICTURE
: maximum
COLOR
: center
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA MC-MYDR
: 22
SERVICE DATA
MC-MSHU
: 31
SERVICE DATA
MC-MSCL
: 31
SERVICE DATA
SC-SSHU
: 31
SERVICE DATA
SC-SSCL
: 31
3. Set to service mode and set to P & P model .
4. Connect an oscilloscope between pin
4. Connect an oscilloscope between pin
5 of CN204 (A board)
connecter and ground.
5. Select “ MC-MYDR”, and adjust them to have VB1 = VB5
in the waveform levels.
6. Select “ MC-MSCL, SC-SSCL” and adjust so that the wave
form shows VB1=VB4 and VB5=VB8.
7. Select “ MC-MSHU, SC-SSHU” and adjust so that the wave
form shows VB2=VB3 and VB6=VB7.
8. Write the data into memory.
MUTING n ENTER
VB1 VB2 VB3 VB4 VB5 VB6 VB7 VB8
Fig. 5-5
X1 = X2
X1
X2
5-6.
BAR DISPLAY POSITION ADJUSTMENT
(OP-DISP)
1. Receive the monoscope signal.
2. Set to service mode.
3. Push “ PICTURE +” . (Bar is displayed)
4. Select “ OP-DISP ” , and adjust so that the bar is as shown in
2. Set to service mode.
3. Push “ PICTURE +” . (Bar is displayed)
4. Select “ OP-DISP ” , and adjust so that the bar is as shown in
the figure.
5. Write the data into memory.
MUTING n ENTER
Fig. 5-6
Y2
X2
X1
Y1
– 43 –
– 44 –
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM (1)
1
2
15
16
17
18
43
60
61
62
51
53
52
32
33
34
35
35
36
37
45
46
7
8
6
57
58
22
47
49
48
50
9
11
12
63
64
23
14
44
55
13
21
20
56
I-2HSYNC
I-HSYNC
SUBTU AFT
MAINTU AFT
O-MONO
O-SAP
I-SAPN
I-STEREN
O-2MUTE
O-MUTE
O-AGC ATT
ANT SW1
ANT SW2
O-R
O-G
O-B
O-I
O-OSDYS
O-DISPYM
O-SBLK
O-MBLK
I-HP
I-VP
I-BINTN
O-YUVMT
IC002
SYSTEM CONTROL
IC004
EEPROM
IC001
RESET
28
5
17
18
IN1
IN2
SCL
SDA
IC403
D/A CONVERTER
O-SPK MT
I-APROT
21
12
OUT1
OUT2
7
11
5
IN+(L)
IN+(R)
MUTE
IC406
L/R AMP
4
8
2
10
OUT(L)
IN-(L)
OUT(R)
IN-(R)
IO-SDAT
O-SCLK
IO-B DAT
O-B CLK
5
6
B DAT
B CLK
I-RESET
O-OSC
I-OSC
4 RESET
O-SIRCS
I-RMCN
O-GRAY
KEY
I-POWERN
O-TMRLED
MENU
I-OVP
I-OCP
O-RELAY
TO
A
BOARD
TUNER
BLOCK
BLOCK
TO
A
BOARD
VIDEO
BLOCK
TO A
BOARD
PJED
BLOCK
STUH
MTUH
STU AFT
MTU AFT
MONO
SAP
SAP IND
ST IND
STU AUMT
MTU AUMT
AGC ATT
ANT SW1
ANT SW2
MICRO R
MICRO G
MICRO B
MICRO I
OSD YS
DISP YM
SBLK
MBLK
HP
VP-BUFF
HP
VP-BUFF
B INT
TO A
BOARD
TUNER
BLOCK
BLOCK
FOR
CHECK
YUV MT
TO A
BOARD
TUNER
BLOCK
BLOCK
ML OUT1
HR OUT1
TO A
BOARD
TUNER
BLOCK
BLOCK
P-MUTE
TO A
BOARD
VIDEO
BLOCK
GRAY
TO A
BOARD
TUNER
BLOCK
BLOCK
R OUT
L OUT
TO A
BOARD
TUNER
BLOCK
BLOCK
RM IN
TO A
BOARD
TUNER
BLOCK
BLOCK
S OUT
SWITCH
Q024
CONTROL
SWITCHES
S1201-1206
MENU
SWITCHES
S1251-1255
POWER
S1207
TIMER/STANDBY
SWITCH
Q007
LED BUFF
Q006
X001
16MHz
SDA
SCL
+11V
STBY
+5V
L/R MUTE
Q403, 404
PROTECT
Q408-411
OFF MUTE
Q402
ON MUTE
Q401
1
2
3
4
L
E
R
E
CN403
11
10
3
BCLK
B DAT
SIRCS
8
7
4
OVP
OCP
RELAY
CN681
1
MENU KEY
CN1202
2
1
2
SIRCS
OUT
MENU KEY
SIRCS
CN1201
CN1252
CN1291
6
7
8
9
2
6
7
8
9
2
KEY
POWER
TIMER LED
MENU
SIRCS
KEY
POWER
TIMER LED
MENU
SIRCS
CN002
CN1203
CN003
IC404
5
6
7
IC404
3
2
1
STBY +5V
D1201
D1291
REMOTE SENSOR
A
(1/4)(AUDIO, SYSTEM CONTROL)
(2/2)
HA
(CONTROL SWITCHES)
HC
(REMOTE SENSOR)
HB
(MENU SWITCHES)
G
TO G
BOARD
CN605
– 46 –
– 45 –
BLOCK DIAGRAM (2)
3
1
2
4
3
1
2
4
3
1
2
4
63
62
64
54
60
59
61
12
10
14
8
9
11
19
17
21
15
16
18
24
28
38
58
56
34
33
4
2
1
7
3
5
41
41
23
25
43
45
37
39
6
6
15
14
4
13
3
1
11
10
9
2
12
5
11
40
52
I
O
J1103
Q1110
Q1105
Q1101
Q1108
Q1109
J1104
J1105
J1106
J1101
J1102
Y IN
DV IN
V OUT
V IN
Y OUT
U OUT
DU IN
U IN
DVD SW
DVD SW
DVD SW
INH
ADIN
CKIN
YOUT
COUT
MTV R
MTV V
MTV L
STV R6
STV V6
STV L6
Y IN2
C IN2
C OUT2
Y OUT2
V3
L3
Y3
R3
C3
SSW-3
R OUT
L OUT
V2
L2
Y2
R2
C2
SSW-2
V1
L1
Y1
R1
C1
SSW-1
MAIN V OUT
SSW-4
Y4
FR Y IN
FRONT SW
FR C IN
FR V IN
FR L IN
FR R IN
FR Y OUT
FRONT SW
FR C OUT
FR V OUT
FR L OUT
FR R OUT
AUDIO BUFFER
AUDIO BUFFER
Q1115,1116
VIDEO BUFFER
FL1702
+11V
IC1701
5V REG
REG 5V
VIDEO
AUDIO
R
IN
VIDEO2
S VIDEO
L(MONO)
HR OUT1
ML OUT1
HR OUT1
ML OUT1
DET OUT 2
L OUT
R OUT
DET OUT
AFT OUT
ST IND
SAP IND
RF AGC
MODE
F MONO
MUTE
SDA
SCL
DET OUT
DE-EM OUT
AFT OUT
MUTE
SDA
SCL
SDA
SCL
SDA
SCL
BUFFER
H.SEP
SWITCH
Q152
Q004
Q151
BUFFER
H.SEP
Q153
Q001
MTUH
AFT OUT
ST IND
SAP IND
RF AGC
MODE
F MONO
STUH
STUAFT
STUAUMT
ANT SW1
ANT SW2
SYSTEM CONTROL
BLOCK
TO A BOARD
SYSTEM CONTROL
BLOCK
TO A BOARD
MTU AUMT
SAVA CONT
BUFFER
SIRCS MIX
BUFFER
Q1121
Q1114
Q1111
Q1106,1107
Q1117
Q1122
Q1920
Q1118,1125
Q1119,1124
BUFFER
BUFFER
V BUFFER
MUTE BUFFER
MUTE BUFFER
Q1112,1113
Q1914
Y BUFFER
IC1101
A/V SWITCH
Q1103,1104
Q1701
BUFFER
FL1701
Q1702,1703
BUFFER
IC1702
COMB FILTER
BUFFER
Q1102
IC1903
YUV SWITCH
SYSTEM CONTROL
BLOCK
FROM A BOARD
TO A BOARD
SYSTEM CONTROL
BLOCK
SYSTEM CONTROL
BLOCK
FROM A BOARD
MTU AUMT
P MUTE
YUV MT
ANT SW1
ANT SW2
3
1
ANT
SW
TU151
MAIN TUNER
TU152
SUB TUNER
IN
VIDEO 1
S VIDEO
VIDEO
AUDIO
R
L(MONO)
AUDIO
R
Y
L(MONO)
IN
S VIDEO
VIDEO
VIDEO 3
PB
PR
VIDEO
AUDIO
R
L
AUDIO OUT
(VAR/FIX)
MONIT OR
OUT
R
L
CONTROL
&
OUT
SC OUT1
SWITCH
Q005
SWITCH
Q003
CN004
BUFFER
BUFFER
BUFFER
BUFFER
Q1704
Q1705
Q1707,1708
Q1706,1709
(LINE IN 1)
HB
(1/2)
(TUNER, VIDEO, AUDIO IN/OUT)
A
(2/4)
FL1703
DY IN
SDA
SCL
SDA
SCL
SY OUT1
10
7
9
5
3
1
10
7
9
5
3
1
CN1702
CN1253
J1251
L OUT
R OUT
S OUT
RM IN
1
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