Sony KV-28FQ75A Service Manual ▷ View online
1
SERVICE MANUAL
AE-5A
CHASSIS
MODEL
COMMANDER
DEST
CHASSIS NO.
KV-28FQ75A
RM-893
ET
SCC-Q45B-A
KV-28FQ75B
RM-893
FR
SCC-Q44B-A
KV-28FQ75D
RM-893
AEP
SCC-Q41E-A
KV-28FQ75E
RM-893
ESP
SCC-Q43C-A
KV-28FQ75U
RM-893
UK
SCC-Q46B-A
MODEL
COMMANDER
DEST
CHASSIS NO.
KV-32FQ75A
RM-893
ET
SCC-Q45C-A
KV-32FQ75B
RM-893
FR
SCC-Q44C-A
KV-32FQ75D
RM-893
AEP
SCC-Q41F-A
KV-32FQ75E
RM-893
ESP
SCC-Q43B-A
KV-32FQ75U
RM-893
UK
SCC-Q46A-A
2
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Specifications
....................
3
Connectors
....................
5
Self Diagnostic Software
....................
6
1. GENERAL
Switching On the TV and
Automatically Tuning
Automatically Tuning
....................
7
Introducing the Menu System ....................
8
Teletext
....................
10
Connecting Optional Equipment....................
10
Using Optional Equipment
....................
10
Specifications
....................
11
Troubleshooting
....................
11
2. DISASSEMBLY
2-1.
Rear Cover Removal
....................
12
2-2.
Chassis Removal
....................
12
2-3.
Service Position
....................
12
2-4.
Wire Dressing
....................
12
2-5.
Picture Tube Removal
....................
13
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing
....................
14
3-2.
Convergence
....................
15
3-3.
Focus Adjustment
....................
17
3-4.
Screen (G2), White Balance
....................
17
4. CIRCUIT ADJUSTMENTS
4-1.
Electrical Adjustments
....................
18
4-2.
Test Mode 2
....................
20
5. DIAGRAMS
5-1.
Circuit Board Location
....................
22
5-2.
Block Diagrams
....................
23
5-3.
Schematic Diagrams and
Printed Wiring Boards
Printed Wiring Boards
....................
22
* C Board
....................
27
* A Board
....................
29
5-4.
Semiconductors
....................
37
5-5.
IC Blocks
....................
39
6. EXPLODED VIEWS
6-1.
Chassis
....................
40
6-2.
Picture Tube
....................
41
7. ELECTRICAL PARTS LIST
....................
42
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.
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.
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.
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WARNING (UK Models only)
The flexible mains lead is supplied connected to a B.S. 1363 fused plug
having a fuse of 13 AMP rating. Should the fuse need to be replaced,
use a 13 AMP FUSE approved by ASTA to BS 1362, ie one that
carries the
having a fuse of 13 AMP rating. Should the fuse need to be replaced,
use a 13 AMP FUSE approved by ASTA to BS 1362, ie one that
carries the
ASA
T
mark.
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT SUITABLE
FOR THE OUTLET SOCKETS IN YOUR HOME, IT SHOULD BE CUT
OFF AND AN APPROPRIATE PLUG FITTED. THE PLUG SEVERED
FROM THE MAINS LEAD MUST BE DESTROYED AS A PLUG WITH
BARED WIRES IS DANGEROUS IF ENGAGED IN A LIVE SOCKET.
FOR THE OUTLET SOCKETS IN YOUR HOME, IT SHOULD BE CUT
OFF AND AN APPROPRIATE PLUG FITTED. THE PLUG SEVERED
FROM THE MAINS LEAD MUST BE DESTROYED AS A PLUG WITH
BARED WIRES IS DANGEROUS IF ENGAGED IN A LIVE SOCKET.
When an alternative type of plug is used, it should be fitted with a
13 AMP FUSE, otherwise the circuit should be protected by a 13 AMP
FUSE at the distribution board.
13 AMP FUSE, otherwise the circuit should be protected by a 13 AMP
FUSE at the distribution board.
How to replace the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.
FUSE
