Sony LBT-A590 User manual

LBT-A590/ A599
SERVICE
MANUAL
AEP
Model
LBT-A590
E Model
LBT-A590/A595
Australian Model
PX Model
LBT-A595
+ LBT-A590/A595 is composed of following models.
As for the service manual, it is issued for each component model,
then, please refer to it.
COMPONENT MODEL NAME FOR THESE SYSTEM
LBT-A590/595
AMPLIFIER TA-A590
CASSETTE DECK TC-A590
TUNER ST-A790
CD PLAYER CDP-C433M or CDP-M46
STEREO COMPONENT SYSTEM
SONY.
i English
Sony
Corporation
sicisreio.
9-959-478-11
Audio
Group
Printed
in
Japan
©
1994.3
Published by Audio Sector Quality Assurance Dept.

PARTS LIST
Part No.
1-501-374-11
1-501-594-11
1-501-659-11
3-758-315-41
3-758-315-51
3-758-315-61
3-758-315-71
3-758-315-81
3-758-344-11
3-758-344-41
1-467-615-11
4-956-911-01
+ Abbreviations
AU
: AUSTRALIA
MX :MEXICO
G
sP
: GERMANY
: SINGAPORE
Description
ANTENNA , LOOP
ANTENNA(FM)(A590 : AEP, EE,IT,CIS)
ANTENNA(FM)(A590 : EA,E,MY,SP/
A595)
MANUAL, INSTRUCTION (AEP)
( ENGUSH , FRENCH , SPANISH , PORTUGUESE )
MANUAL, INSTRUCTION (AEP,G,IT)
( GERMAN , DUTCH , SWEDISH , ITALIAN )
MANUAL, INSTRUCTION (EE,CIS)
( ENGLISH , GERMAN , RUSSIAN , POLISH )
MANUAL, INSTRUCTION (EE)
(CZECH, HUNGARIAN)
MANUAL, INSTRUCTION
(A890: EA,E,MY,SP/A595)
(ENGLISH , FRENCH , SPANISH , CHINESE)
MANUAL, INSTRUCTION
(for CDP-C433M)
(ENGLISH , FRENCH , SPANISH , CHINESE)
MANUAL, INSTRUCTION
(for CDP-C433M)
(GERMAN , DUTCH , ITALIAN , PORTUGUESE )
COMMANDER,STANDARD (RM-S521)
LID ,SLIDE (RM-S521)
IT : ITALIAN
EA :SAUDI ARABIA
EE : EAST EUROPEAN
MY : MALAYSIA
nee eee
Part No.
4-965-023-01
4-965-024-01
4-965-025-01
4-965-026-01
4-965-027-01
4-965-028-01
4-967-147-01
1-551-734-11
1-574-265-11
1-590-822-11
1-590-823-11
3-350-154-01
4-922-998-06
4-929-563-01
4-944-040-01
4-944-041-01
4-965-421-01
Description
INDIVIDUAL CARTON (TA-TC-CDP-ST)
(A590 : AEP,EE,CIS)
INDIVIDUAL CARTON (A590: EA,E3,MY)
INDIVIDUAL CARTON (A590: SP)
INDIVIDUAL CARTON (TA-TC-CDP)
(A590 : AEP,G,IT)
INDIVIDUAL CARTON(A595 : E)
INDIVIDUAL CARTON(A595 : AU,PX)
INDIVIDUAL CARTON(A595 : MX)
CORD,CONNECTION(PIN-PIN)
(A590 : EA,E,MY,SP/A595)
CORD(WITH CONNECTOR)(3P-3P)
CORD(WITH CONNECTOR) (3P-15P-15P)
CORD(WITH CONNECTOR)(3P-11P-11P)
CUSHION(TC)
CUSHION(CDP-M46)
CUSHION(ST)
CUSHION(FRONT)(CDP-C433M)
CUSHION(REAR)(CDP-C433M)
CUSHION(TA)
NOTE:
@ Items marked
seldom required for routine service. Some delay
should be anticipated when ordering these items.
ore
are not stocked since they are

SERVICE MANUAL
TA-A590 Is the amplifier
in LBT-A590/A595.
TA-A990
This photo Is E/Australian/PX model.
AEP Model
E Model
Australian Model
PX Model
DIN power output
SPECIFICATIONS
60 W + 60 W (6 ohms, at 1 kHz)
Continuous RMS power output
Music power output
70 W +70 W (6 ohms, at 1 kHz, 5% THD)
110 W +110 W (6 ohms)
Input Jack type Sensitivity Impedance
PHONO (MM) | Phono 3mV 47 kohms
VIDEO/MD. Phono 400 mV, 47 kohms
Output Jack type Impedance
SURROUND | Phono Accepts speakers of 16ohms_ |
SPEAKER
HEADPHONES |Stereophone Accepts headphones of 8
‘ohms or more
Frequency response
Power requirements
MICROFILM
15 Hz to 50 kHz “dB
Model for Australian:
240 V AC, 50/60 Hz
Models for European countries
220 V — 230 V AC, 50/60 Hz
Models for other countries: 120 V,
220 V or 230 — 240 V AC adjustable,
50/60 Hz
Model for Mexican: 120 V AC, 60 Hz
Power consumption
Weight
Dimensions
and speci
© Abbreviations
AU > Australian
MN | Mexican
AEP model : 165 W
E model 190 W
AU model : 190 W
MX model : 167 W
AEP model ; Approx. 6.6 kg (14 Ibs 9 0z)
MX mode! : 6.1 kg
Models for other countries: 6.7 kg
Approx. 355 x 135 x 330 mm
(14x 5'/, x 127/, inches)
(w/h/d, including projections)
ations are subject to change without notice.
INTEGRATED STEREO AMPLIFIER
SONY.

TABLE OF CONTENTS
Section Title Page
Specifications -+++++++eseeeeereesee eee eeeeneee 1
1. GENERAL
1-1. Location of Controls -++++++0eseeeeeeeee ees 2
2. DISASSEMBLY «+--+ ----0-s0seseeeeeeeees 3
3. DIAGRAMS
3-1. Block Diagram +++ ++++seeeesteeeeeeeren ees 4
3-2. Main Section Printed Wiring Boards ---- 8
3-3. Main Section Schematic Diagram ++++-- 11
3-4. Panel/Audio Section Schematic Diagram -+-+- 1S
3-5. Panel/Audio Section Printed Wiring Boards 19
3-6. IC Pin Description - + 22
4. EXPLODED VIEWS «-----0---500+ se 25
5. ELECTRICAL PARTS LIST -----------> 27
MODEL IDENTIFICATION
— Specification Label Printed on Back Panel —
SON Yo wovet No. TA-A590
AEP, German, Italian, East European,
CIS model: AC 220 — 230 V ~50/60 Hz
Australian model: AC 240 V ~50/60 Hz
E, Saudi Arabia, Malaysia, Singapore,
PX model: AC 120/220/230 — 240 V ~50/60 Hz
Mexican model: AC 120 V ~60 Hz
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
1-1
SECTION 1
GENERAL
This section is extracted from
instruction manual.
. LOCATION OF CONTROLS
1
Ha Gt
4) 1)
i
16) ti
0 |
IN
Soca
(=)
las
SOURCE DIRECT button and indicator ©: Australian, PX model
(86)
POWER switch (18)
SELECT 5/PERSONAL FILE setting
indicators (88, 98)
SURROUND MODE/OFF,
SURROUND LEVEL setting indicators
(86)
Display window
DISPLAY button (94)
CURSOR CONTROL buttons (88, 90,
94, 98)
DYNAMIC BASS SYSTEM button and
controls (ON/OFF, FREQ, LEVEL) (20)
VOLUME control (20)
BALANCE control (20)
SURROUND buttons (MODE/OFF,
LEVEL) (86)
Function selectors and indicators (38)
MEMORY button and indicator (96)
EQ FLAT button (94)
CURSOR MODE buttons (SELECT 5,
PERSONAL FILE, EQ and indicators)
(88, 90, 96, 98)
HEADPHONES jack (20)
P. FUNCTION button and indicator
(122)
KARAOKE PON button (E, Australian, PX, model)
MIC jack (E, Australian, PX, rodel)
MIC LEVEL control (E, Australian, PX, model)

SECTION 2 SECTION 3
DISASSEMBLY DIAGRAMS
Note: Follow the disassembly. procedure in the numerical order given. 3-1. BLOCK DIAGRAM
Front panel ass’y
@ Screw +BVTP3 x 8
. |
ey @ Remove the claw.
NI }
Se
(edith Fa)
|
—3-—
—4—

TA-A590
‘PANEL C’ PANEL B (STK A BOARD)
SSaRc
BoaRO
se
"7
MAIN
A
=
BOARD
(272),
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up 10 = SF | poh
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esi fed & | Fl Fl Fe Gai J oils
H
=
os
[MAIN B BOARD) [MAIN c’
~ BOARD
xa |

TA-A590
3-2, MAIN SECTION PRINTED WIRING BOARDS
© See page 24 for Semiconductor Lead Layouts.
Semiconductor
Location
Ref. No. [Location 1B
o7o1 | F-10 i
9
Note
© o—— : parts extracted from the component side. J
[MAIN A BOARD)
sw,
&
mp bes bdes
Eootas
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[—we-sace
|
|
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conrace
rary
we 00
10 9 oe © ot
[MAIN D BOARD)
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1
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3
icr0z. sm by,
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se
iy erie Sy.
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eee SS

19 __ 20 260]?
28
=
Spee!
MAIN C
BOARD
[-651-408~
E,PK,SAUDI ARABIA, MALASIA,SINGAPORE MODEL
[vs BOARD]
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| (Wourace]
t Seis cron!
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AEP.GERMAN,EAST EUROPEAN, ITALIAN,CIS MODEL
We 240V — 2209
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|
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3-3. MAIN SECTION SCHEMATIC DIAGRAM
ss
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INPUT
setect
© Circuit Boards Location
PANEL E board
PANEL 0 board
XX ae
N\
N.
HP Booed
PANEL C board ‘sysien
[cowrro. +
HP A board
<
PANEL B bosrd
om
MIC
B
boers
oSal
(€.PX, Austraion model)
MIC, A board
(©, PX, Ausiaian model)
ie
WS board (E, PX model)
STK, 8 board P
GE,
PX,
Austrain
model)
‘Sit
|
250-752 4.4
STK Aboard INVERTER
TS board (Australian mode!)
MAIN board
MAIN B board
ES
V7
i[MAIN A BOARD}
AUDIO board 0S
MAIN D board
eet oes

13 14 15 16 17 18
ISTK A BOARD] 7
‘57K601=080 AEP. GERMAN, EAST EUROPEAN. ITALLAN
PEXICAN CTS WORE
‘516601-090 +E, PX AUSTRALIAN. SAUD! ARABIA,
MALAYSIA. SINOAPORE. MOSEL
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