Sony KD-28DL10U Service Manual ▷ View online
- 25 -
Test Mode 2 is available by programming the Remote Commander for
operation in Service Mode [ As shown on Page 23 ] then pressing the
‘VIDEO’ button twice, OSD ‘TT’ appears. The functions described
below are available by selecting the two numbers. To release the ‘Test
mode 2’, press 00, 10, 20 ... twice or switch the TV set into Stand-by
mode. In ‘TT Menu’ mode, it is possible to remove the Menu from
the screen by pressing the Speaker Off button once. Pressing the
Speaker OFF button a second time will cause the Menu to reappear.
The function is kept even when the menu is not displayed on
screen !!.
operation in Service Mode [ As shown on Page 23 ] then pressing the
‘VIDEO’ button twice, OSD ‘TT’ appears. The functions described
below are available by selecting the two numbers. To release the ‘Test
mode 2’, press 00, 10, 20 ... twice or switch the TV set into Stand-by
mode. In ‘TT Menu’ mode, it is possible to remove the Menu from
the screen by pressing the Speaker Off button once. Pressing the
Speaker OFF button a second time will cause the Menu to reappear.
The function is kept even when the menu is not displayed on
screen !!.
4-2. TEST MODE 2:
7
2
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3
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4
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- 26 -
5-1. BLOCK DIAGRAMS (1)
B1 ( )
Y, U, V SWITCHING
BUFFER AMP
Q8404
Q8407
Q8407
2
9
IC8401
MULTIPLEXER/
DE-MULTIPLEXER
Y IN
CN8401
1
3
V IN
4
FBLK IN
TO
A1 BOARD
CN4103
TO
A BOARD (1/2)
CN002
SWITCH
Q8401
BUFFER AMP
Q8403
Q8406
Q8406
2
U IN
10
11
5
12
BUFFER AMP
Q8402
Q8405
Q8405
1
15
4
14
3
13
Y0
Z0
X0
C
B
A
X
Z
Y1
Y
Z1
X1
U IN
V IN
Y IN
Y OUT
U OUT
V OUT
1
2
3
5
6
7
CN8402
1
3
H- DY+
CN2802
D3 ( )
4:3 SWITCHING
4
5
H- DY-
H- DY-
V- DY-
RELAY SWITCH
Q2801,Q2802
2
H- DY+
6
V- DY+
TO
A BOARD (2/2)
CN501
1
3
H- DY+
CN2803
4
5
H- DY-
H- DY-
V- DY-
2
H- DY+
6
V- DY+
CN2801
TO
D2 BOARD
CN8802
T2801
+8V
6
8
10
5
4
2
1
RY2801
DY ASSY
V DY
V- DY+
V- DY-
H DY
H- DY+
H- DY-
SW
1
A1 ( )
DIGITAL FRONT
END PROCESSING
CN4101
TO
N BOARD
IC4104
A/D VIDEO
SWITCH
12
SWITCH
Q4124
5
2
RIGHT
TO
B1 BOARD
CN8401
6
SDA-TV
X
SWITCH
Q4115
SWITCH
Q4117
INVERTER
Q4118
10
INVERTER
Q4119
11
INVERTER
Q4120
15
4
14
Q4105
Q4104
SWITCH
Q4107
3
4
5
Y
Z
14
15
5
6
2
1
X4101
XTAL
SCL-TV
SWITCH
Q4113
SWITCH
Q4112
SDA-TV
SCL-TV
CVBS-A/D
IC4102
RTC
C (Z)
B (Y)
A (X)
SCL (TV)
SDA (TV)
FE LOCK
Y0
Z0
A (X)
D CVBS
RY
GC
SCL-N3Y
SDA-N3Y
LEFT MPEG
RIGHT MPEG
RIGHT-DIGITAL
LEFT-DIGITAL
C-DIGITAL
Y-DIGITAL/CVBS-A
10
CN4104
11
15
5
6
1
2
IC4105
PORT EXPANDER
A22
A7
A6
A5
A4
A3
C1
B1
A1
LEFT
MUTE
FBLK
CVBS
B
G/C
R/Y
SCL (TV)
SDA (TV)
PTEN
FE RESET
FE LOCK
SCL (N)
SDA (N)
N RESET
PT CLK
PT SYNC
TS6
TS7
TS4
TS5
TS2
TS3
TS0
TS1
B22
A24
A25
B25
A26
B26
C26
A28
B28
A29
B29
A30
B30
A31
B31
A32
B32
2
1
3
4
GREEN/U
RED/Y
BLUE/V
FBLK
CN4103
8
9
11
12
13
18
20
22
24
26
28
30
32
34
36
38
42
45
46
48
SDA-PLL
SCL-PLL
SCL OUT
SCL OUT (PORT-1)
TS0
TS1
TS2
TS4
TS5
TS3
TS6
TS7
PT CLK
PT SYNC
SCL N3V
SDA N3V
FE RESET
FE LOCK
P3
PTEN
SDA
SCL
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
CLK
SYN
SCL
SDA
RES
FEL
PORT-1
DEN
AC IN
2
1
CN4601
IC4601
AC IN
1
4
TO
A BOARD (2/2)
CN601
2
3
CN4602
1
2
TO
A BOARD (1/2)
CN642
UNREG 5V
EPG STBY
T4602
IC4608
COMPARATOR
7
SWITCH
Q4601
RY4601
BRIDGE
RECTIFIER
D4601
8
1
2
3
9
4
1
8
7
15
9
14
11
I
IC4604
REGULATOR
O
+33V
I
O
IC4605
5V REGULATOR
5VA
5VD
4
IC4607
3.3V REGULATOR
2
3.3V
IC4602
C
IC4603
ERROR AMPLIFIER
I
O
1
9V
5V
5V
D4603
T4601
TO
A BOARD (1/2)
CN301
SWITCH
Q4106
Q4103
TUNER LOCK
AND LED
3
1
SWITCHES
Q4114
Q4116
Q4116
Z1
Y1
13
14
7
AGC
AM
QSS
SCL
SDA
AGC
FM/AM
QSS
VIDEO
TUNER
TU4102
TUNER
TU4101
16
15
14
1
5
4
IC4606
REGULATOR
F3 ( )
AC OUT
AC OUT
1
2
CN3603
TO
H9 BOARD
CN7602
T3601
LINE FILTER
T3602
LINE FILTER
2
1
4
3
2
1
4
3
FUSE
F3601
LIGHTENING
1
2
CN3601
AC INPUT, FUSE
6
CN8801
TO
A BOARD (2/2)
CN512
SWITCH
Q8802
Q8803
Q8803
IC8801
SMART MODE
SWITCH
HDY-
SWITCH
SMART
2
8
+8V
D2 ( )
SMART MODE DEFLECTION
1
CN8802
TO
D3 BOARD
CN2801
MOSFET
SWITCH
Q8801
1
3
4
2
SWITCH
- 27 -
5-1. BLOCK DIAGRAMS (2)
1
CN002
J401(1/2)
63
IC001
MICRO, VIDEO
PROCESSOR, ROM, AUDIO,
VIDEO SWITCH
XTAL OUT
RED
AUDIO 3/V OUT
TO SPEAKERS
A 1/2 ( )
POWER SUPPLY,
DEFLECTION, VIDEO, AUDIO
5
2
CN1201
64
XTAL IN
+
-
IC1201 AUDIO AMP
MUTE
1
IN/INL
10
14
OUT/L
68
IC401 AV LINK
69
R0 56
B10
7
6
5
2
G0 57
B0 58
IK 55
GREEN
BLUE
IK
EWD 17
VD- 18
VD+ 19
ABL 54
TO
C BOARD
CN703
CN003
J401 (2/2)
SDA
6
SCL
5
7
WP
72
SCL
71
SDA
28
CVBS2/
CVBSY2
CVBSY2
2
KEY
3
AGC
53 B2/UIN
1
MODE1
80 MODE2
52 G2/YIN
51 R2/VIN
38 -/C4
50 INSSW2
32 CVBS1
37 -/CVBS4Y4
A8
A11
A7
B8
A15
A16
B20
B15
A20
BLUE
MODE
MODE
GREEN
RED
C2 IN
BLK
V IN 1
Y/V IN 2
BUFFER
Q401, Q411
A19
MUTE SW
Q212
CN406
STBY 70
41
77
TO A 2/2
23
FREE 1 MAGENTA
VD+
V-PULSE
MAGENTA
CN510
TO
VM BOARD
CN1701
VM OUT
AVL OUT
AVL IN
34
5
INR
12
CVBS3
28
29
46
47
36
33
53
50
37
34
52
49
A1
B1
A2
B2
A3
B3
A6
B6
R OUT 1
R OUT 2
R IN 1
R IN 2
L OUT 1
L OUT 2
L IN 1
L IN 2
SC1 OUT R
SC2 OUT R
SC1 IN R
SC2 IN R
SC1 OUT L
SC2 OUT L
SC1 IN L
SC2 IN L
DACMR
DACML
SC3 IN L
SC3 IN R
73
EPG STBY
3
CN642
EPG STBY
TO
A1 BOARD
CN4602
9
6
4
1
KEY
CVBS/Y
R
L
TO
H9 BOARD
CN906
10
9
55
58
44
43
SCL
SDA
ANA-IN1+
MONO IN
AMPLIFIER
Q202, Q203
SC4-IN-R
SC4-IN-L
IC201
MSP3411G
SOUND PROCESSOR
5
15
11
10
7
8
2
1
YD/CVBS
CN301
CVBS/AD
SCL
SDA
QSS
AM
RIGHT D
RIGHT L
TO
A1 BOARD
CN4104
67
6
5
2
3
4
7
6
2
3
5
6
7
45
46
47
48
49
V OUT
U OUT
Y OUT
Y IN
V IN
U IN
TO
B1 BOARD
CN8402
AUDIO 1 U IN
Y IN
Y OUT
U OUT
CN405
LED
SIRCS
KEY
TO
H9 BOARD
CN7150
SERVICE
CN001
75
6
5
2
3
+
-
1
7
19
76
FBISO
SSCP
7
10
9
BUFFER AMP
Q1233
BUFFER AMP
Q1232
J404
R OUT
L OUT
3
6
L IN
R IN
1
4
CN1200
R AUDIO
L AUDIO
TO
H9 BOARD
CN908
OUT/R
X001
LOW B
LED
SIRCS
NVM WP
FREE 1 DEF SW
IC004
4
HP PLUGGED
HP PLUGGED
1
TO
A BOARD (1/2)
CN1200
HEADPHONES
WOOFER MUTE
CN908
R IN
R OUT
L OUT
CN906
1
2
3
5
J900
J900
H9( )
Y/C, FRONT AV
INPUT, SIRCS RECEIVER
J900
6
R
9
SWITCHES
S900 - S905
L
Y/CVBS
KEY
6
4
1
TO
A BOARD (1/2)
CN406
L IN
V
L
R
SWITCH
Q7150
2
SIRCS
LED
7
6
SWITCH
Q7151
IC7150
SIRCS RECEIVER
CN7150
TO
A BOARD (1/2)
CN405
D7150
1
5
AC OUT
AC OUT
CN7601
TO
A BOARD (2/2)
CN606
S7601
POWER
2
1
CN7602
TO
F3 BOARD
CN3603
AC IN
AC IN
Y/C AND FRONT AV INPUT
LED AND SIRCS RESPONSE
AC INPUT
J701
TO
A BOARD (1/2)
CN003
IC701
R.G.B. DRIVE
6
5
1
3
G IN
CN703
C ( )
R.G.B. OUT
7
2
1
B IN
R IN
IK
NS CORRECT
1
2
3
5
9
8
7
IC1801
ROTATION AMP
1
2
3
7
6
10
8
9
3
6
CN1801
ROT (+)
ROT (-)
CN706
CN707
1
1
H2
G2
PICTURE TUBE
TO ROTATION COIL
G OUT
B OUT
R OUT
TO A BOARD (2/2)
CN508
TO FBT
VM ( )
DYNAMIC FOCUS
AND DQP
IC1901
COMPARATOR
3
5
BUFFER
SWITCH
SWITCH
Q1901
7
AMPLIFIER
Q1902
Q1903
Q1903
OP AMP
Q1840
Q1841
Q1841
T1901
7
2
IC1902
OPERATIONAL
AMP
V PULSE
CN1701
9
9
NS CORRECT
10
MAGENTA
TO
A BOARD (1/2)
CN510
BUFFER
Q1906
AMPLIFIER
Q1907
1
2
3
4
QP-
QP+
NECK
ASSY
CN1718
CN1809
DF
1
TO A BOARD (2/2)
CN509
- 28 -
5-1. BLOCK DIAGRAMS (3)
A 2/2 ( )
5
7
8
RELAY
SWITCH
Q601
T603
(PIT)
(PIT)
18
18
16
2
15
2
IC602
ERROR AMP
PH601
ISOLATOR
AUDIO VCC
LOW B
+3.3V
7
5
IC501
V OUTPUT
3
1
VD+
BOOST
REF
OUT
PIN OUT
Q532
6
5
4
3
2
1
T511
FBT
FV
ABL
12
3
4
5
6
13
8
9
11
10
7
V- DY+
V- DY-
H- DY+
H- DY+
TO
C BOARD
CN707
H1
200V
TO PICTURE
TUBE
6
5
+
-
+
-
7
IC531
PIN CORRECTION
EW
HP
PROTECT
IN
VP
VD-
4
1
2
3
T531
HDT
HD
T602
CN601
VD
VGCH
VS
+B
HV
CN508
IC601
POWER SUPPLY
D514
-15V RECT
1
2
1
3
DGC
DGC
DGC
DGC CHECK
DGC CHECK
CN603
CN602
2
1
H- DY-
H- DY-
TO C BOARD
CN706
G2
D625
D608
RELAY
RY601
1
3
4
6
7
9
CT
VSENSE
RT
TIMER
SS
OCP
12
VG(G)
MAIN RECT
D601
Q606
7
3
LOW B
D618
D619
H-DRIVE
Q535
2
FB
D513
+15V RECT
1
2
8
Q607
H-OUT
Q533
CN501
O
D638
TO A 1/2
POWER SUPPLY,
DEFLECTION, VIDEO, AUDIO
TO
D3 BOARD
CN2803
RECT
1
1
12
10
11
8
6
5
4
1
1
2
3.3V REG
IC608
D632
TO
VM BOARD
CN1809
STBY
1
3
2
8
6
2
H- DY-
SMART
SW
SW532
3
CN509
1
TO
D2 BOARD
CN8801
OCP DETECT
Q602, Q603
RECT
D625
17
16
15
VC1
REG
D614
CN605
PFC
PFC
3
1
TO
DGC
2
1
CN606
TO
H9 BOARD
CN7601
4
3
I
TO
A1 BOARD
CN4601
1
5
4
IC609
TOPSWITCH IC
DF
CN512
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