Read Sony KV-28CS70B Service Manual online
- 1 -
SERVICE MANUAL
AE-6B
CHASSIS
MODEL
COMMANDER
DEST
CHASSIS NO.
KV-28CS70B
RM-947
FR
SCC-R33A-A
KV-28CS70E
RM-947
ESP
SCC-R31D-A
KV-28CS70U
RM-932
UK
SCC-Q84X-A
MODEL
COMMANDER
DEST
CHASSIS NO.
KV-28/32CS70
RM-947
KV-32CS70B
RM-947
FR
SCC-Q83X-A
KV-32CS70E
RM-947
ESP
SCC-R31A-A
KV-32CS70K
RM-947
OIRT
SCC-Q82N-A
KV-32CS70U
RM-932
UK
SCC-Q84W-A
RM-932
- 2 -
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Caution
....................
3
Specifications
....................
4
Connectors
....................
5
Self Diagnostic Software
....................
6
1. GENERAL
Switching On the TV and
Automatically Tuning
Automatically Tuning
....................
7
Introducing and Using the Menu
System
System
....................
8
Menu Guide
....................
8
Teletext
....................
10
Fastext
....................
10
Connecting Additional Equipment ...............
11
Lifting the TV Set
....................
11
Specifications
....................
12
Troubleshooting
....................
12
2. DISASSEMBLY
2-1.
Rear Cover Removal
....................
13
2-2.
Service Position
....................
13
2-3.
Chassis Removal and Refitting ....................
13
2-4.
G Board Removal
....................
14
2-5.
M Board Removal
....................
14
2-6.
Service Connector for M Board..................
14
2-7.
Wire Dressing
....................
14
2-8.
Picture Tube Removal
....................
15
Bottom Plates
....................
16
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing
....................
17
3-2.
Convergence
....................
18
3-3.
Focus Adjustment
....................
20
3-4.
Screen (G2), White Balance
....................
20
4. CIRCUIT ADJUSTMENTS
4-1.
Electrical Adjustments
....................
21
4-2.
Test Mode 2
....................
23
5. DIAGRAMS
5-1.
Block Diagrams (1)
....................
24
Block Diagrams (2)
....................
25
Block Diagrams (3)
....................
26
5-2.
Circuit Board Location
....................
26
5-3.
Schematic Diagrams and
Printed Wiring Boards
Printed Wiring Boards
....................
26
* A Board Schematic
....................
27
* A Board PWB
....................
34
* F5 Board Schematic
....................
37
* F5 Board PWB
....................
38
* H6 Board Schematic
....................
37
* H6 Board PWB
....................
38
* VM Board Schematic
....................
37
* VM Board PWB
....................
36
* G Board Schematic
....................
39
* G Board PWB
....................
38
* D Board Schematic
....................
40
* D Board PWB
....................
41
* C Board Schematic
....................
42
* C Board PWB
....................
43
* M Board Schematic
....................
44
* M Board PWB
....................
43
5-4.
Semiconductors
....................
45
5-5.
IC Blocks
....................
48
6. EXPLODED VIEWS
6-1.
Chassis
....................
50
6-2.
Picture Tube
....................
51
7. ELECTRICAL PARTS LIST
....................
53
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.
ANY 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.
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.
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.
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.
ATTENTION AUX COMPOSANTS RELATIFS Á
LA SECURITÈ!!
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARQUE
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.
- 3 -
CAUTION
Lead Free Soldered Boards
The circuit boards listed below [Table 1] used in these models
may have been processed using Lead Free Solder. The boards are
identified by the LF logo located close to the board designation
e.g. F1, H1 etc [ see examples ]. The servicing of these boards
requires special precautions to be taken as outlined below.
may have been processed using Lead Free Solder. The boards are
identified by the LF logo located close to the board designation
e.g. F1, H1 etc [ see examples ]. The servicing of these boards
requires special precautions to be taken as outlined below.
Table 1
example 1
example 2
It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints. Lead Free Solder is
available under the following part numbers :
available under the following part numbers :
Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade. This
requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
For more information on the use of Lead Free Solder, please refer to http://www.sony-training.com
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