Sony KV-28FC60 Service Manual ▷ View online
5
AE-5 SELF DIAGNOSTIC SOFTWARE
The identification of errors within the AE-5 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 a 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 displayed through the LED (Series of flashes which must be counted) See table 1., non fatal errors are reported using this method.
of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a 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 displayed through the LED (Series of flashes which must be counted) See table 1., non fatal errors are reported using this method.
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Flash Timing Example : e.g. error number 3
StBy LED
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Device acknowledge is used to check IIC errors. Device acknowledge is checked by sending an IIC start sequence during CRT power on. Each
device is checked three times, if there is no acknowledge after each attempt, it will be regarded as an error.
There are three steps to check for errors.
device is checked three times, if there is no acknowledge after each attempt, it will be regarded as an error.
There are three steps to check for errors.
1.
IIC line 0
If all devices except the NVM have errors, IIC line 0 error is displayed.
If all devices except the NVM have errors, IIC line 0 error is displayed.
2.
Board check
If all devices mounted on one board have errors, board error is displayed.
If all devices mounted on one board have errors, board error is displayed.
3.
Each device check
If IIC line error and board error are not detected then the device with the error is displayed.
If IIC line error and board error are not detected then the device with the error is displayed.
The detected errors can be displayed as follows :
1.
Error Monitor Menu.
2.
Error Reader.
Error Detection Monitor
1. Error Monitor Menu
Operating Time :
000021
h55
min
Stored Errors :
1.
100h
2.
401h
3.
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4.
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5.
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A-Board
BP-B CXD2069 MID
J-B TDA9320 Main Col Dec
no error occured
no error occured
BP-B CXD2069 MID
J-B TDA9320 Main Col Dec
no error occured
no error occured
Current Error :
Start Error Sequence
ERROR MONITOR
7
2. Error Reader Display
The error reader display is connected to the service connector to read actual error codes. The part number for the error reader display is
S-188-900-10. Once an error has been detected it will then be displayed on the two digit error reader. The errors displayed refer to the following
table.
S-188-900-10. Once an error has been detected it will then be displayed on the two digit error reader. The errors displayed refer to the following
table.
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TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
1. GENERAL
Using the TV menu system
....................
9
Sound Control
....................
9
Using the features menu
....................
10
Sorting TV Channels
....................
12
Teletext
....................
14
Additional Information
....................
15
2. DISASSEMBLY
2-1.
Rear Cover Removal
....................
16
2-2.
Speaker Disconnection
....................
16
2-3.
Chassis Removal
....................
16
2-4.
Service Position
....................
17
2-5.
S1 Board Removal
....................
17
2-6.
J Board Removal
....................
17
2-7.
Picture Tube Removal
....................
18
2-8.
Removal and replacement of
the Main-Bracket bottom
plates.
the Main-Bracket bottom
plates.
....................
19
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing
....................
20
3-2.
Convergence
....................
21
3-3.
Focus
....................
23
3-4.
Screen [G2] White Balance
....................
23
4. CIRCUIT ADJUSTMENTS
4-1.
Electrical Adjustments
....................
24
4-2.
Volume Electrical Adjustments ....................
28
4-3.
Test Mode 2
....................
30
5. DIAGRAMS
5-1.
Block Diagram (1)
....................
31
Block Diagram (2)
....................
35
Block Diagram (3)
....................
39
Block Diagram (4)
....................
43
5-2.
Circuit Board Location
....................
46
5-3.
Schematic Diagrams and
Printed Wiring Boards
Printed Wiring Boards
....................
46
* F2 Board
....................
47
* H2 Board
....................
47
* H4 Board
....................
47
* F1 Board
....................
48
* H3 Board
....................
48
* E Board
....................
49
* M Board
....................
53
* B1 Board
....................
56
* U Board
....................
63
* D Board
....................
65
* A Board
....................
68
* J Board
....................
77
* C Board
....................
83
* D1 Board
....................
87
* VM Board
....................
90
5-4.
IC Blocks
....................
90
5-5.
Semiconductors
....................
91
6. EXPLODED VIEWS
6-1.
Chassis
....................
94
6-2.
Picture Tube
....................
96
7. ELECTRICAL PARTS LIST
....................
98
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE
CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE
ANODE CAP.
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE
CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE
ANODE CAP.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY
SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO
LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS DIRECTLY
CONNECTED TO THE POWER LINE.
SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO
LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS DIRECTLY
CONNECTED TO THE POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
£
ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS
LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
ATTENTION
APRES AVOIR DECONNECTE LE CAP DE’LANODE,
COURT-CIRCUITER L’ANODE DU TUBE CATHODIQUE ET CELUI
DE L’ANODE DU CAP AU CHASSIS METALLIQUE DE L’APPAREIL,
OU AU COUCHE DE CARBONE PEINTE SUR LE TUBE
CATHODIQUE OU AU BLINDAGE DU TUBE CATHODIQUE.
COURT-CIRCUITER L’ANODE DU TUBE CATHODIQUE ET CELUI
DE L’ANODE DU CAP AU CHASSIS METALLIQUE DE L’APPAREIL,
OU AU COUCHE DE CARBONE PEINTE SUR LE TUBE
CATHODIQUE OU AU BLINDAGE DU TUBE CATHODIQUE.
ATTENTION !!
AFIN D’EVITER TOUT RISQUE D’ELECTROCUTION PROVENANT
D’UN CHÁSSIS SOUS TENTION, UN TRANSFORMATEUR
D’ISOLEMENT DOIT ETRE UTILISÈ LORS DE TOUT DÈPANNAGE LE
CHÁSSIS DE CE RÈCEPTEUR EST DIRECTMENT RACCORDÈ Á
L’ALIMENTATION SECTEUR.
D’UN CHÁSSIS SOUS TENTION, UN TRANSFORMATEUR
D’ISOLEMENT DOIT ETRE UTILISÈ LORS DE TOUT DÈPANNAGE LE
CHÁSSIS DE CE RÈCEPTEUR EST DIRECTMENT RACCORDÈ Á
L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á
LA SECURITÈ!!
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARQUE
£
SUR LES SCHÈMAS DE PRINCIPE, LES VUES
EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE IMPOR-
TANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE
LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE
NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU
DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.
TANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE
LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE
NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU
DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.
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