1
SERVICE MANUAL
AE-5A CHASSIS
MODEL
COMMANDER
DEST
CHASSIS NO.
KV-34FQ75A
RM-893
ET
SCC-Q45D-A
KV-34FQ75D
RM-893
AEP
SCC-Q41G-A
MODEL
COMMANDER
DEST
CHASSIS NO.
KV-34FQ75K
RM-893
OIRT
SCC-Q42C-A
2
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Specifications
....................
3
Connectors
....................
4
Self Diagnostic Software
....................
5
1. GENERAL
Tuning your TV
....................
8
Finding your Video Channel
....................
8
Using the TV menu system
....................
8
NexT View
....................
12
Teletext
....................
13
Specifications
....................
14
Troubleshooting
....................
14
2. DISASSEMBLY
2-1.
Rear Cover Removal
....................
15
2-2.
Speaker Connector
....................
15
2-3.
Chassis Removal
....................
15
2-4.
Service Position
....................
16
2-5.
D1 Board Removal
....................
16
2-6.
J Board Removal
....................
16
2-7.
B3 Board Removal
....................
16
2-8.
Front Control Removal
....................
17
2-9.
F3 and H6 Board Removal
....................
17
2-10.
H5 Board Removal
....................
17
2-11.
Service Connector
....................
17
2-12.
Picture Tube Removal
....................
18
Bottom Plates
....................
19
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing
....................
20
3-2.
Convergence
....................
21
3-3.
Focus Adjustment
....................
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
....................
29
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
....................
46
* H5 Board
....................
47
* F3 Board
....................
48
* F1 Board
....................
48
* H6 Board
....................
48
* E Board
....................
49
* M1 Board
....................
53
* D1 Board
....................
56
* D Board
....................
63
* A Board
....................
66
* J Board
....................
75
* C Board
....................
81
* BL Board
....................
85
* B3 Board
....................
88
* VM Board
....................
106
5-5.
IC Blocks
....................
106
5-4.
Semiconductors
....................
107
6. EXPLODED VIEWS
6-1.
Chassis
....................
110
6-2.
Picture Tube
....................
111
7. ELECTRICAL PARTS LIST
....................
113
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.
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.
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.
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.
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.
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.
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21 pin connector
Connected
Not Connected (open)
* at 20Hz - 20kHz
Pin No
1
2
4
Signal
Signal level
1
Audio output B
(right)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
2
Audio output B
(right)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
3
Audio output A
(left)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
4
Ground (audio)
5
Ground (blue)
6
Audio input A
(left)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
7
Blue input
0.7 +/- 3dB, 75 ohms positive
8
Function select
(AV control)
High state (9.5-12V) : Part mode
Low state (0-2V) : TV mode
Input impedence : More than 10K ohms
Input capacitance : Less than 2nF
9
Ground (green)
10
Open
11
Green
Green signal : 0.7 +/- 3dB, 75 ohms,
positive
12
Open
13
Ground (red)
14
Ground (blanking)
15
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_
Red input
0.7 +/- 3dB, 75 ohms, positive
_
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input)
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16
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(Ys signal)
High state (1-3V) Low state (0-0.4V)
Input impedence : 75 ohms
17
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output)
18
Ground (video
input)
19
Video output
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(-3+10dB)
20
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_
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21
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19
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10
8
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2
21
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AE-5A SELF DIAGNOSTIC SOFTWARE
The identification of errors within the AE-5A chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of
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Flash Timing Example : e.g. error number 3
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