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Sony KV-25FX30K [23/50] Dy assy
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23 24
5-1. BLOCK DIAGRAMS (1)
LOWB
5
4
1
CN001
J401
(1/2)
77
63
5
7
4
3
2
1
5
4
RELAY
SWITCH
Q601
T603
SRT
16
15
17
18
18
16
1
2
15
8
11
12
IC602
ERROR AMP
1
2
PH601
ISOLATOR
+B
D638
RECT
AUDIO
VCC
+B
LOWB
3.3V REG
H-OUT
Q533
STBY
+3.3V
IC608
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
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
CN707
H1
200V
TO PICTURE
TUBE
2
3
6
5
_
+
+
-
1
7
IC531
PIN CORRECTION
EWD
+8V
IN
IK
VD-
41
2
3
T531
HDT
IC609
STANDBY
POWER
HD
C
D
T602
D632
RECT
IC001
MICRO, VIDEO PROCESSOR,
ROM, AUDIO, VIDEO SWITCH
CN601
CN510
VD
VGCH
VS
+B
HV
CN508
XTAL OUT
RED
NVM WP
LED
L AUDIO
TO SPEAKERS
A ( )
POWER SUPPLY, DEFLECTION,
SMALL SIGNAL BOARD,
AUDIO AMPLIFIER
IC601
D514
-15V RECT
VIDEO
+5V
STBY
1
2
1
3
DGC
DGC
DGC
DGC
CHECK
DGC CHECK
CN603
CN602
POWER
S601
2
1
H- DY-
H- DY-
IC604
DUAL DC REGULATOR
2
1
+8V
D608
LINE FILTER
T601
RELAY
RY601
MAIN RECT
D601
1
3
4
6
7
9
CT
VSENSE
RT
TIMER
SS
OCP
12
VG(L)
Q606
Q607
6
5
4
7
3
LOWB
D624
D622
D618
D619
VM VCC
QCP DETECT
Q602, 603, 604
1
4
CN1201
J1200
R AUDIO
64
XTAL IN
40
AUDIO MUTE
5
AUD OUT/CVBS20
6
6721 VCC OUT
IC002
REMOTE CONTROL
RECEIVER
+3.3V
STBY
6
5
3
2
+
-
+
-
7
1
+5V STBY
IC1201
AUDIO AMP
MUTE
1
IN/INL
10
14
OUT/L
H-DRIVE
Q535
FUNCTION SWITCH
S001 - S006
68
IC401
AV LINK
+5V STBY
69
R0
56
A10
B10
1
2
3
6
G0 57
B0
58
IK
55
GREEN
BLUE
IK
EWD
17
VD-
18
VD+
19
ABL
54
TO C BOARD
CN703
TO VM BOARD
CN1701
8
CN003
J401
(2/2)
VM OUT
AGC
SCL
SDA
VIDEO
IC004
SDA
6
SCL
5
7
WP
71
SCL
72
SDA
28
CVBS2/
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
65
KEY/CS
45
AUDIO 1
34
CVBS3/CVBS3Y3
A8
A11
A7
B8
A15
A16
B20
B15
A20
A2
BLUE IN
MODE1
MODE2
GREEN IN
RED IN
C2 IN
BLK
V IN 1
Y/V IN 2
IC003
RESET
BUFFER
Q401,411
A19
TU101
MUTE SW
Q212
AUDIO
VIDEO
STBY
70
2
F/B
D513
+15V RECT
1
3
D625
AM
44
AUDIO 2
STBY
Содержание
- Chassis 1
- Kv 25fx30b 1
- Kv 25fx30e 1
- Kv 25fx30k 1
- Kv 29fx30b 1
- Kv 29fx30e 1
- Kv 29fx30k 1
- Service manual fe 1
- Table of contents 2
- Pin connector 4
- Rear connection panel front connection panel 4
- S video socket 4
- Fe 2 self diagnostic software 5
- Section 6
- Switching on the tv and automatically tuning 6
- Introducing and using the menu system 7
- Menu guide 7
- Level 1 level 2 level 3 function 8
- Level 1 level 2 level 3 function 9
- Connecting a vcr 10
- Connecting a vcr that supports smartlink 10
- Connecting optional equipment 10
- Fastext 10
- If you have connected a decoder to a vcr which supports smartlink feature 10
- Teletext 10
- Specifications 11
- Troubleshooting 11
- Disassembly 12
- Section 12
- Turn up one side of the rubber cap in the direction indicated by the arrow a 1 2 using a thumb pull up the rubber cap firmly in the direction indicated by the arrow b 14
- When one side of the rubber cap is separated from the anode button the anode cap can be removed by turning up the rubber cap and pulling it up in the direction of the arrow c 14
- 1 beam landing 16
- Section 16
- Set up adjustments 16
- 2 convergence 17
- Tilt direction 18
- 3 focus adjustment 19
- 4 screen g2 white balance 19
- 1 electrical adjustments 20
- Circuit adjustments 20
- Section 4 20
- B out waveform 21
- Deflection system adjustment 21
- Enter into the geometry service menu 2 select and adjust each item in order to obtain the optimum image 21
- Note there should be no need to adjust the agc as this is pre adjusted during manufacture of the frontend if the agc does need adjustment then follow steps 1 to 4 below 21
- Print side of a board 21
- Receive a pal colour bar signal 2 connect an oscilloscope to pin 5 of cn003 a board 3 enter into the service service menu 4 adjust the sub colour data so that the cyan magenta and blue colour bars are of equal levels as indicated below 21
- Receive a signal of 62dbuv 75 ohm terminated via the tuner antenna socket 2 connect a voltmeter to pin1 of tu101 print side of a board or to the agc pin of cn001 mount side of a board 3 confirm that the agc voltage is 3 volts 0 volts 4 if adjustment is required then re adjust the agc variable resistor located at the top rear of the frontend to obtain a voltage of 3 v 0 v 21
- Same level 21
- Sub colour adjustment 21
- Tuner agc adjustment 21
- 0 0 5 o t e m ulo v e n o h p d a e h r e k a e p s t e s 22
- 0 0 8 o t e m ulo v e n o h p d a e h r e k a e p s t e s 22
- 0 5 3 o t e m ulo v e n o h p d a e h r e k a e p s t e s 22
- 0 5 6 o t e m ulo v e n o h p d a e h r e k a e p s t e s 22
- 0 e d o m g nie g a 22
- 0 ff o e d o m t t 22
- 0 m u m ini m e r u tci p 22
- 0 m u m ix a m e r u tci p 22
- 0 n oitid n o c g nip pih s 22
- 1 0 5 le v el e r u tci p 22
- 1 elb a si d elb a n e e d o m y r o tc a f 22
- 1 t n e m ts ujd a e r u tcip b u s 22
- 1 t n e m ts ujd a n oitis o p h tx e t 22
- 1 t n e m ts ujd a r u olo c b u s 22
- 1 t n e m ts ujd a s s e n t h gir b b u s 22
- 1 ts e t lio c n oit a t o r 22
- 2 l b n oit a nits e d 22
- 2 r k e d a n oit a nits e d 22
- 2 test mode 1 22
- 2 u n oit a nits e d 22
- 3 test mode 2 22
- Test mode 1 is available by pressing the test button once osd t appears the functions described below are available by selecting the indicated keys the t is released automatically after each command is executed 22
- Test mode 2 is available by pressing the test 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 22
- 1 block diagrams 1 23
- Dy assy 23
- 3 schematic diagrams and printed wiring boards 24
- A board 24
- Cvm board 24
- Les composants identifiés par une trame et par une marque sont d une importance critique pour la sécurité ne les remplacer que par des pièces de numéro spécifié specified 24
- Neck assy 24
- Reference information 24
- S1 board 24
- The components identified by shading and marked are critical for safety replace only with the part numbers specified in the parts list 24
- C board waveforms 25
- C boardwaveforms 25
- Ic voltage table 25
- R g b out 25
- Difference table 26
- Velocity modulation 26
- A b c d e f g h i j k l m 28
- Difference table 28
- Printed wiring board 28
- Semiconductor location table 28
- Semiconductor voltage table ic voltage table 28
- Kv 25 29fx30 29
- A board waveforms 30
- Power supply deflection audio amplifier page 2 2 30
- 4 semiconductors 31
- 5 ic block diagrams 33
- A board ic1201 tda7497 33
- A board ic401 ic531 lm393dt 33
- A board ic601 mcz3001d 33
- A board ic604 ba41w12st v5 33
- 1 chassis 34
- Section 6 exploded views 34
- 2 picture tube 35
- Section 7 electrical parts list 36
- A f4 a 40
- C d vm 46
- 927 405 01 50
- A new tv repair assistance tool that combines ease of use and powerful pc software tools to allow you to save valuable time during many tv repairs 50
- English 01ep7140 1 printed in u k 2001 50
- Partnumbers trace starter kit trace interface software 9 948 320 70 trace software for users of the i 2 c link interface 9 948 340 80 trace ir add on ir interface remote commander software 9 948 320 80 50
- Pc requirements ibm compatible pc with operating system windows95 windows98 or windowsnt 50
- Sony corporation 50
- Sony uk service promotions dept 50
- The interface is powered by a standard 9 v pp3 battery for portable use and can also be powered by an external 9v 25ma dc power supply 50
- The trace interface connects to the pc s serial port it provides connection to the tv s i 2 c bus and can be provided with an infrared transmitter optional 50
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