Sony KV-25R2A Service Manual ▷ View online
21
V SIZE
V LIN
S CORRECTION
V CENTRE
H CENTRE
H SIZE
PIN AMP
PIN PHASE
CORNER PIN
V ANGLE
Before adjustment
After adjustment
BELL FILTER ADJUSTMENT (
Secam models only
).
Note : Ensure that the TV set has been powered up for at least
1 minute to allow for drift before carrying out the following
adjustment.
adjustment.
1.
Input a video SECAM Colour Bar signal via AV1.
2.
Connect an oscilloscope to pin 1 of CN504 [R-OUT] on the
A board.
A board.
3.
Enter into the ‘Picture’ menu and select ‘Bell-f0’.
4.
Decrease the register of ‘Bell-f0’ until the following waveform
change between RED and BLUE is obtained.
change between RED and BLUE is obtained.
5.
When the correct waveform has been obtained add an
additional 7 steps to the register.
additional 7 steps to the register.
DEFLECTION SYSTEM ADJUSTMENT
1.
Enter into the ‘Geometry’ service menu.
2.
Select and adjust each item in order to obtain the optimum
image.
image.
GEOMETRY
V centre
Adj
V size
Adj
V Lin
Adj
S Corr
Adj
H Cent
Adj
H Size
Adj
Pin Amp
Adj
Corner Pin
Adj
Pin Phase
Adj
V Bow
Adj
V Angle
Adj
Upper V Lin
Adj
Lower V Lin
Adj
Left HBLK
07
Right HBLK
07
CD Mode (AV)
01
22
4-2. TEST MODE 2:
00
Cancel Test mode
01
Picture maximum
02
Picture minimum
03
Volume 35%
04
Volume 50%
05
Volume 65%
06
Volume 80%
07
Ageing mode On/Off
08
Set shipping conditions
09
Display TV Status
10
No function
11
Sub Picture Adjustment
12
Sub Colour Adjustment
13
Sub Brightness Adjustment
14
Text H position Adjustment
15
Rotation test
16
Picture level 50%
17
Audio mute ON
18
Disable Blanking
19
No function
20
No function
21
Destination A
22
Destination L
23
Destination E
24
Destination U
25
Destination D
26
Destination B
27
Destination K
28
Destination R
29
No function
30
No function
31
Auto shutoff Disable/Enable
32
RGB priority Disable/Enable
33
Rotation On/OFF
34
Text language East/West
35
Wide CRT/4:3 CRT
36
VM ON/OFF test
37
No function
38
No function
39
No function
40
No function
41
Re-initialize the NVM [Only when Prog=59]
42
Re-initialise geometry settings [Only when Prog=59]
43
No function
44
No function
45
No function
46
No function
47
No function
48
Set NVM as NON Virgin [Only when Prog=59]
49
Set NVM as Virgin [Only when Prog=59]
50
No function
51
No function
52
No function
53
No function
54
No function
55
No function
56
No function
57
No function
58
No function
59
No function
60
No function
61
Auto AGC Adjust
62
Alternative Dest B Autotuning
63
Enable/Disable Y/C input
64
Signal Quality Check for Auto Tune
65
Signal Quality NOT Checked for Auto Tune
66
No function
67
Manual AGC Adjust
68 -100
No function
Is available by pressing ‘TEST’ button twice, OSD ‘TT’ appears. The functions described below are available by pressing the two numbers. To
release the Test mode 2, press 0 twice, or switch the TV into stand-by mode, or press the
release the Test mode 2, press 0 twice, or switch the TV into stand-by mode, or press the
TV button on the remote commander.
23
StBy LED
ON
ON
ON
OFF
OFF
(ON SCREEN
DISPLAY)
DISPLAY)
5
(DIGIT 5)
(VOLUME -)
(TV)
i
+
Table 1
Flash Timing Example : e.g. error number 3
How to enter into Table 2
1.
Turn on the main power switch of the TV set and enter into the
‘Standby Mode’.
‘Standby Mode’.
2.
Press the following sequence of buttons on the Remote
Commander.
Commander.
3.
The following table will be displayed indicating the error
count.
count.
Table 2
Note: To clear the error count data press ‘80’ on the Remote
commander.
ERROR
LED
ERROR
COUNT
COUNT
No error
00
Not allowed (may be confused with Sircs response
flash!)
flash!)
01
Protection circuit trip < ANY TIME >
02
Reserved
03
No vertical sync
04
AKB
05
IIC bus clock and/or data lines low at Power ON
06
NVM no IIC bus acknowledge at Power ON
07
Jungle controller no IIC acknowledge at Power ON
08
Tuner no acknowledge at Power ON
09
Sound processor no acknowledge at Power ON
10
Error Times
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
4-3. FE-1 SELF DIAGNOSTIC SOFTWARE
The identification of errors within the FE-1 chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event
of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with continuous flashing LED) and
then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be dis-
played through the LED (Series of flashes which must be counted) See Table 1., non fatal errors are reported using this method.
Each time the software detects an error it is stored within the NVM. See Table 2.
of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with continuous flashing LED) and
then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be dis-
played through the LED (Series of flashes which must be counted) See Table 1., non fatal errors are reported using this method.
Each time the software detects an error it is stored within the NVM. See Table 2.
25
26
27
28
29
5-1 BLOCK DIAGRAMS
S1
SCL
SDA
SIF
MONO
R1
L1
R2
L2
TVR OUT
TVL OUT
R AUDIO OUT
L AUDIO OUT
TO A BOARD
CN101
(STEREO DECODER)
IC1101
STEREO DECODER
5
12
29
33
34
36
37
4
SCL
SDA
SIFI
MONO IN
SCART 1 IN R
SCART 1 IN L
SCART 2 IN R
SCART 2 IN L
TVR OUT
TVL OUT
AUDIO R OUT
AUDIO L OUT
47
48
60
61
SCART 1 OUT
SCART 1 OUT
MAIN OUT R
MAIN OUT L
TVR OUT
TVL OUT
AUDIO R OUT
AUDIO L OUT
17
18
XTAI OUT
XTAI IN
CN1101
1
2
5
6
9
10
11
12
14
15
16
17
TU101
AGC
SCLI
SDAI
5
2
3
4
IF1
SWF
101
SWF
102
1
2
23
24
14
VIF
VIF
SIF
SIF
TU AGC
8
12
16
CN001
AGC
SCLI
SDAI
CS
J402
AUDIO L
AUDIO R
Y/CVBS
AF OUT
QSS
DET OUT
STAND SW RF
AGC
AFC
BUFFER
Q101
SYNC SEP
Q005, 004
3
22
17
21
4
9
SCL
SDA
14
15
10
16
SWITCH
Q006
13
9
10
15
11
O-KEY/SCART
I-KEY/SCART
I-KEY/SCART 1/2
I MODE 1
I MODE 2
14
12
I-KEY
I-KEY
19
48
11
6
12
X001
12MHZ
43
1
1
42
41
5
24
36
37
51
8
IC003 RESET
17
30
IC301
Y/C JUNGLE
AMPLIFIER
Q007,008,
009
34
33
32
7
32
31
30
29
35
35
34
52
SWITCH
Q011
43
15
2
4
48
47
18
41
25
28
27
26
6
VIDEO AMP
Q408, 409
2
18
IC201
AUDIO AMP
BUFFER
Q012
3
A6
A2
A1
A3
A19
B8
A8
A7
A11
A15
A16
A20
B15
B20
24
21
22
23
1
2
3
6
1
2
5
4
6
9
10
11
12
14
15
16
17
14
12
1
4
6
19
13
14
3
11
1
2
2
1
1
3
MAIN RECT
D601
DGC
7
6
5
8
RELAY
RY601
LINE FILTER
T601
5
7
4
3
2
1
5
4
RELAY
SWITCH
Q601
T603
SRT
7
5
8
4
3
1
4
11
12
2
3
16
15
14
13
1
2
IC603
ERROR AMP
PH601
ISOLATOR
D605
+B RECT
D614
RECT
D610
RECT
AUDIO
VCC
+B
+B
IC604
1
3
5VREG
IC605
1
3
9VREG
MUTE SW
Q202
5V REG
H-DRIVE
Q535
H-OUT
Q533
+5V
+9V
LOW B
STBY
+5V
IC608
7
5
IC501
V OUTPUT
3
1
VD+
BOOST
REF
OUT
PIN OUT
Q532
6
5
4
3
2
1
1
2
4
D571,
Q571,574
T511
FBT
FV
ABL
12
3
4
1
5
6
13
8
9
11
10
7
V DY
V- DY+
DY ASSY
V- DY-
H DY
H- DY+
H- DY-
V- DY+
V- DY-
H- DY+
H- DY+
TO C BOARD
CN701
1000V
200V
H1
TO PICTURE
TUBE
2
3
6
5
+
-
+
-
1
7
IC531
PIN CORRECTION
EW
HP
PROTECT
IN
VP
VD-
3
2
1
4
T531
HDT
IC609
STANDBY
POWER
HD
D
C
T602
D632
RECT
DGC
DGC
DGC
CHECK
DGC CHECK
IC001
MICRO CONTROLLER
SCLO
SDAO
SDA
SCL
MON OUT
SCL
SDA
CN201
J201
CN601
CN603
CN602
J401
CN101
CN504
FBO CP
VCC
D
S
HP
+B
HV
D511
CN502
0-MSP/ASW
0-V BLK
0- +B DROP
0-VOL
0-SP MUTE
OSD BLK
R
G
B
0-WP
EXT CVBS
0-XRAY PROT
VP
HP
X-IN
MON OUT
X-OUT
D-N-C
0-ROT/VC
RESET
I-PROCDES
0-LED
0-STBY
0-SCART 1/2
0-KEY SCART
I-KEY-SCART
0-BAND-L
0-BAND-M
AGC DEFEAT
AGC MON
I-AFT
BE/DK/I
0-RFAGC
0-COIN
INT BLK
INT R2 IN
INT G2 IN
INT B2 IN
SDAO
SCLO
HP
PROTECT
PROTECT
Y1/CVBS IN
CI IN
XTAL 2
XTAL 1
VM OUT
TV/C2 IN
IK IN
B OUT
G OUT
R OUT
HD
VD-
VD+
EW
ABL IN
Y/CVBS IN
EXT BLK
EXT R IN
EXT G IN
EXT B IN
MON OUT
HD
VD-
VD+
EW
ABL
MUTE
NC/IN 2
R OUT/OUT
L OUT/NC
R IN/IN 3
VAR/L
MON OUT
VAR R/SW
VOLUME
STBY
L IN/IN 2
R AUDIO
L AUDIO
SCL
SDA
SIF
RST
MONO
R1
L1
R2
L2
TVR OUT
TVL OUT
R AUDIO OUT
L AUDIO OUT
L AUDIO IN
L AUDIO IN
MODE
DET V OUT
DET L OUT
DET R OUT
MODE
BLUE
GREEN
RED
BLK
YV IN
C IN
V IN
RED
GREEN
BLUE
IK
TO C BOARD
CN703
TO SPEAKERS
TO S1
BOARD
CN1101
A ( )
POWER SUPPLY, DEFLECTION
TUNING, VIDEO SIGNAL PROCESSOR
AV IN/OUT, REMOTE RECEIVER
IC005 SWITCH SCART
MATRIX
IC101 VIF/SIF
DEMODULATOR
IC606
POWER
D513
+15V RECT
D514
-15V RECT
IC004
NVM
-15V
10
2
3
9
5
H- DY-
H- DY-
HEADPHONES
4
1
S601
POWER
45 I-SIRCS
SIRCS
RESP
FUNCTION
SWITCH
S001-S006
1
IC002 REMOTE CONTROL
RECEIVER
STBY
+ 5V
L
R
VIDEO
2
G DRIVE, BKG
Q705, 706
B DRIVE, BKG
Q708, 709
R OUT
Q704
G OUT
Q 707
B OUT
Q710
1
H2
C
(RGB OUT)
H1
RV702
H STAT
PICTURE TUBE
6
CN703
R
G
B
CUT OFF
H2
CN701
TO A BOARD
CN502
TO BOARD
T511 (FBT)
H
R
C
V
C
V
2
+200V
G2
R
G
B
H
V
V
RCV
G2
G
4
G
2
G2
(1000V)
RV701
SCREEN
D711
PROTECT
TO A BOARD
CN504
1
2
3
6
R DRIVE, BKG
Q702, 703
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