Sony SB-3335 User manual

Input jacks:
Jacks and terminals
for amplifiers:
Terminals for speakers:
Dimensions:
Net weight:
Shipping weight:
SPECIFICATIONS
PHONO IN-1, -2, -3
TUNER IN-1, -2, -3
AUX IN-1, -2, -3
TAPE IN-1, -2, -3
REC OUT IN-1, -2, -3
PHONO-1, -2, -3
REC OUT-1, -2, -3
TAPE-1, -2, -3.
SPEAKER-1, -2, -3
SPEAKER-1, -2, -3, -4, -5
-Note: All connectors are provided for
both left and right channels.
400(w) x 149(h) x 320(d) mm
153/4(w) x 513A6 (h) x 127/g (d) inches
5.4 kg (12 Ib)
8.1kg (17 Ib 120z)
SERVICE MANUAL

SECTION 1.
Bi
1-2.
1-3.
1-4. pane
SECTION 2.
oe i:
2-2.
2-3.
SECTION 3.
SECTION 4.
4-1.
4-2.
4-3.
- 4-4,
4-5.
4-6.
4-7.
4-8.
4-9.
4-10.
4-11.
SECTION 5.
SECTION 6.
TABLE OF CONTENTS
- TECHNICAL DESCRIPTION
Connections ........ misesceeerncennseseossessaeseeeneseeseseassessnensecceas | |
Function of Switches and Controls ...........c.c00 iS at 1
| apical Use of. Monitor Selectors and
2
DISASSEMBLY A AND REPLACEMENT
Front Panel Removal. Se ee ee 5
Push Button Switch Replacement 2.00... 5
‘Speaker Binding Post Removal ......eceseesceseeeeees 5
REPACKING ............ ee: “es a ene 6
DIAGRAMS |
Wiring Diagram
— Function Switch and Muting Switch — .............. if
- Mounting Diagram — Phono Board — ......... eee eee eee 7
Mounting Diagram — Tuner Board — .........eceeeeeeceseeees 8
Mounting Diagram — AUX Board — ..o....ccccceeeeeeeseeeeeeees 8
Tape-To-Tape Board (Upper) uu... seeccsceeeeseeeeneeeeeneeeees 9
Tape-To-Tape Board (LOWer): scciviaiaiieeecneuss 9.
MOnitOr:-BOatG: « weneicvewkes ncchee ues Suerte teeacetentat cause toaneetewas es 10
Speaker Out Selector Board 2.......c.cccsccessceceseceeeseeteseees 10
Amplifier Board ........ bso Nalecbavbicd wieuacaduslan Wdciemaustsee eacesites 11
Speaker Switch Board .......::.ssssecsesessesessesessseeseseeeeneneeees 12
Schematic Diagram ................. spe sea teins leseessnvaseneets 13
EXPLODED: VIEW ccaniicddentcieiantceate 1S
ELECTRICAL PARTS MAST. - ceGicisinanasectncenccepespncesies 17
Title | Page

SECTION 1
eee DESCRIPTION
1-1. CONNECTIONS —
AMPLIFIER jacks and terminals
The SB- 3335: seis three amplifiers, Connect
as follows: |
1. Connect the vague litte phono inputs to the
SB-3335 PHONO ‘jacks. : :
25 Connect the amplifier recording outputs to the
REC OUT jacks.
3: Connect the aHiplitiei tape aout: to the TAPE
jacks.
4. Connect the amplifier speaker terminals to the
SPEAKER terminals.
Note: Since the phono signal must go to an
amplifier equalizer section, keep the
amplifier input selector in the phono
position.
Since all source signals return to the
amplifier tape inputs, keep the amplifier
monitor selector in the tape position.
INPUT jacks
The SB-3335 accepts three record players, tuners
and auxiliary sources. Connect them as follows:
1.
Connect
the
phono
cords
of
a
record
player
to
the PHONO jacks and connect the player earth
wire to the earth terminal [GROUND].
2.
Connect
the
tuner
outputs
to
the
TUNER
Jacks.
Connect the line outputs of an auxiliary source
to the AUX jacks.
GROUND terminals
Connect record player earth wires to these
terminals.
TAPE RECORDER jacks
The SB-3335 accepts three tape recorders. For
playback,
connect
the
tape
recorder
line
outputs
to
the
TAPE
jacks.
For
recording,
connect
the
tape
recorder line inputs to the REC OUT jacks.
MASTER MUTING AMPLIFIER
VOLUME SW selectors
MONITOR
selectors | _ selectors
SPEAKER terminals
~The -SB-3335 ‘accepts five pairs of aveieee:
Connect. + and - terminals of the. SB-3335 to
the corresponding + and - terminals of the
speakers. | :
Notes on input connections
Use -low-capacitance shielded cables. Especially
for phono connection, keep the — as short as
possible.
Be sure the cable connectors are fully inserted
in the jacks. A loose connection may cause hum and
noise. ‘
When reconnection is required, turn off the.
amplifiers or lower the volume controls to avoid
possible damage on delicate speaker system due to
click noise.
1-2. FUNCTION OF SWITCHES AND CONTROLS
1. AMPLIFIER selectors
Select either amplifier connected.
2. MUTING switch
Decreases the speaker sound by 20 dB. This
switch is useful when you make telephone conver-
sation or when you lower the phono cartridge onto
the disc.
3. MASTER VOLUME control
Before setting up the system, adjust each ampli-
fier volume to the same level. Then you can control
all amplifier levels with this knob. The adjustment
range of this knob is determined by the level setting
of the amplifier connected.
Note: Do not set the amplifier volume to
maximum. If you set the volume too
high, speaker damage may result when
you accidentally set the amplifier moni-
tor switch to the source position.
FUNCTION
PESTS Sea
HEADPHONE SPEAKER
jack selectors
TAPE-TO-TAPE - | 7
selectors | Fig. 1-1. Function and controls

4. HEADPHONE jack
Accepts most* low- and high-impedance head-
phones equipped with a standard binaural phone plug.
* Some electrostatic headphones are designed to be
driven by the speaker output and cannot be plugged
directly into this jack.
5. SPEAKER selectors
To use two pairs. of speakers, simultaneously
push the button | and another desired button. When
you push multiple. buttons except for the button 1,
the smallest number button will be activated; eg.,
with buttons. 2, 3 and 4 pushed-in, the number 2
speakers will be on.
6. MONITOR selectors
Select the program supplied to the amplifier.
To reproduce the source program (TUNER, AUX
or PHONO) push the SOURCE button.
To reproduce the tape program connected to the
TAPE RECORDER inputs, push either the TAPE 1,
2 or 3 button.
When you push the SOURCE and TAPE button
simultaneously, the source program will be repro-
duced.
7. FUNCTION selectors
To reproduce tuner, phono or auxiliary source,
push the MONITOR SOURCE button, set the
FUNCTION lever to the desired program, and select
the source with the associated FUNCTION button.
Note: When you push multiple buttons, all the
signals are connected and mixed.
8. TAPE-TO-TAPE selectors
Use these buttons for tape duplication. Select
a playback tape recorder with the upper button, and
a recording tape recorder with the lower button.
Tape duplication is made independently of the sound
reproduction which is selected by the MONITOR
and FUNCTION selectors. Do not ‘push the same
number upper and lower buttons.
Note: When the lower button is pushed-in, the .
pushed-button REC OUT jacks supply
the tape playback signals selected by the
upper button. When the lower button is
released, the REC OUT jacks supply
the source signal selected Oy loa
FUNCTION selectors.
Keep the amplifiers controls as follows:
Function selector. .... phono.
Monitor selector ..... tape.
1-3. TYPICAL USE OF MONITOR SELECTORS
AND TAPE-TO-TAPE SELECTORS ©.
The source signal selected by the FUNCTION
selector is separately routed into MONITOR selector
and TAPE-TO-TAPE selector. Also the tape: signal
(applied to the TAPE inputs) is divided into the
MONITOR and TAPE-TO-TAPE selectors. Therefore,
by using these selector buttons, you will make three
operations (reproduction, recording, and tape dupli-
cation) simultaneously or independently, as you.
desire. Remember that the MONITOR selectors and
the TAPE-TO-TAPE selectors work separately.
_ Typical uses of these selectors are as follows
(refer to the illustrations).
1. a) Source reproduction
b) Source recording on tape recorders 1, 2 and 3
Tape recorders | ee ee ea ee -... Recording |
(1)
eo
- [SOURCE] TAPE 1 TAPE 2. TAPE 3
6 |
2. a) Source reproduction
b) Duplication of tape 1 on recorders 2 and 3
Tape recorder 1] ...............00. Play back
Pape TECOMdE! Z.-x- hoe eed beak ... Recording
MaDe TECOTUED 9. nais dec, Gaines bear Recording
(2)
—<——
| SOURCE ITAPE 1 TAPE 2. TAPE 3
"#10 0 ©
nee
Guat tiny - TAPE TOXTARE

3. a) Source reproduction
b) Source recording on recorder 1
c) Duplication of tape 2 on recorder 3
Tape recorder 1
Tape recorder 2
Tape recorder 3
rT ”
| SOURCE} TAPE 1
|
A
fale
4,
a)
Tape
1
playback
b)
Duplication
of
tape
2
on
recorder
3
Tape
recorder
|
Tape
recorder
2
Tape
recorder
3
(4)
fa
SOURCE | TAPE 1 |
a)
TAPE 2
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eevee e@ 8 © @ © © © ©» © F @ ®
“TAPE 3
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TAPE TO TAPE
ee
TAPE TO TAPE
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TAPE 2. TAPE 3
10
@
Recording
Play back
Recording _
Playback
Playback
Recording
. a) Tape 1 playback
b) Duplication of tape 1 on eecuider 2
c) Source recording on recorder 3
Tape recorder] ...... ks ate Gt ep atiees Playback
Tape recorder 2 ......-. eee ee eee Recording
Tape recorder 3 .......--0.e20-0585 Recording.
| (5)
. a) Tape 1 playback
b) Duplication of tape I on vecorders 2 and 3
Tape recorder 1 ........00-eeeees Playback
Tape recorder 2 nt cin csanuwawes Recording
Tape recorder 3 ................. Recording
(6) |

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1-4.

SECTION 2
DISASSEMBLY AND REPLACEMENT
Note: All. screws in this service manual are 2-2.
7 Phillips type (cross TeECess type) unless
otherwise indicated. | 1.
(-) : slotted head.
| 2:
2-1. FRONT PANEL REMOVAL
1. Remove the top cover, then pull off the
MASTER VOLUME and FUNCTION knobs.
2 Remove the screws shown in t Fig. 2 1 and 2-2.
This frees the front panel. TERR
3.
B 3x6
self-tapping Pee
front panel removal @™
Fig. 2-17. Bottom view
Fig. 2-2.
Front panel removal
. een SWITCH REPLACEMENT
Remove the front panel as described. in ‘Pro-
cedure 2-1.
Remove the screws securing each defective
switch to the front subchassis.
Take the switch along with the circuit board.
Note: To remove AMPLIFIER switch, take out
the four screws securing the circuit board
bracket to the chassis as shown in Fig.
2-3.
Unsolder and Gest the each lug of the switch
with the soldering iron having solder sucking
tip. This frees the defective switch.
Switch bracket removal.
F ig. 2-3.
SPEAKER BINDING POST REMOVAL
Remove the top cover.
Remove the screw securing the binding post
from the back.

SECTION 3 |
- -REPACKING
The SB-3335’s original shipping carton and protection, the SB-3335 must be repacked in these
tepacking
materials
are
the
ideal
containers
for
materials
precisely
as
before.
The
proper
repacking
shipping
the
unit.
However
to
secure
the
maximum
procedures
are
shown
in
Fig.
3-1.
>
3-780-184-11
manual, instruction .
4-804-217-00 ©
cardboard,
protection;
upper
Bo.
4-818-125-C
0
sgn
: CUSPION 8 es:
818-924-000
bag, polyethylene ~_
978-125-000
EAU CE SSS eUshiOM ©.
—_ EE wee
4-804-218-00
drawer, corrugated cardboard
4-820-116-00
carton
Fig. 3-1. Repacking

SECTION 4
DIAGRAMS
4-1.
WIRING
DIAGRAM
—
FUNCTION
Switch
and
MUTING
Switch
—
To TUNER board, S6-1 RED Q— sic ( FUNCTION SW)
Sis-1 =|
S18 (MUTING SW)
4-2. MOUNTING DIAGRAM — PHONO Board —
To AMPLIFIER board, $13-6-1 aman
|
|
|
I
To PHONO-3 jack, L-CH? ORG
To PHONO-3 jack, R-CHY onG (fp —
To PHONO-2 jack, L-CH? RED Q-T—
To PHONO-2 jack, RCH? REO O-f——
To PHONO-1 jack, L-CHY YEL Q74—
To PHONO1 jack, RCH? Yer OQ-f——
To AMPLIFIER board, $11-6-29 vit. Q-2--—==_-H
RED) To MONITOR board, S14-1
To AMPLIFIER board, $11-2-1
Si8-2-|
Sig-1-1
Note: Since all shielded cables are
finished with tubing as shown,
only the color of jacket are
indicated.

4-3. MOUNTING DIAGRAM — TUNER Board —
To FUNCTION SW, S10-12 RED OR
oR
To TUNER-3 jack, L-CH
To TUNER-3 jack, R-CH2 orG
TRO
To TUNER-2 jack, L-CH
CREO
~ To TUNER-2 jack, R-CH
eo
To TUNER-1 jack, L-CH
To TUNER-1 jack, R-CH? YEL
To FUNCTION SW, $10-99 RED
ON <n
Note: Since all shielded cables are
4-4. MOUNTING DIAGRAM — AUX Board —
To FUNCTION sw, S10-112 vit 5
7
To
AUX-3
jack,
L-CH9
ORG
(jo
7T
=~
~~
—
To AUX-3 jack, R-CHY. ORG = QoCo—
To AUX-2 jack, L-CHY RED Q=t7—
“To AUX-2 jack, R-CH? RED Qu
To AUX-1 jack, L-CH? YEL “Q-4-—
To AUX-1 jack, ACH? YEL Q-po=
To
FUNCTION
SW,
$10-89
vLT)
Op
—=—
[14]
ON
<qam
finished with tubing as shown,
only the color of jacket are
indicated.
WHT
ground
GRY-- - CH
REO--R-CH