Technics SUVZ 220 Service Manual

Page 2

BEFOREREPAIR _ . _
PROTECTION CIRCUITRY . .....
ACCESSORY, .............
LOCATIONVOF CONTROLS I
CONNECTIONS ...........

- PEEOREPEPAIR

(1) Turn off the power supply Using a 109 5 W resistor connect

order to discharge the voltage
(2) Before turning the power supply
voltage controller to make su'r
resnect to supply ,voltagé

after completion of rape
e consumedcurrentat

RING CONNECTION DIAGRAM .

BLOCK DIAGRAM ...............
REPLACEMENT PARTS LIST .
CABINET PARTS LOCATIO
PACKAGING .............

AC 230 V

AC 240 V

47~157 mA

45~150 mA

'- PROTECTION CIRCUITRV
The protection circuitry may have operated

'No sound is heard when the power
Sound stops during a

, 1 Switch OFF the power
2 Determine te, cause of the problem an
3.~Switoh ON the pawer once again

Note:

When the protection circuitry t

I ACCESSORY

OAC Power Supply cord .................................... 1
FlJA0019-1K ........ For (EG) and (EP) areas
SJA193 .............. For (EB) area
SJA173 .................................. For (G N) area

if either of the following conditions is noticed

Configuration of the AC powerrsupply cord diflers acco ingtoé

a

7.

I LOCATION OF CONTROLS

OFront Panel

[I] POWerswitch (POWER) I I

I2 Power indicatOr (POWER INDICATOR)
When the power is switched ON, this indicator illuminates

E Source direct switch (S@URCE DIRECT)
:This switch is used when enjoying high quality sound play
back such as that from a CD. ~ _ ,

E Volume control (VOLUME)

' E) Input selector (INPUT SELECTOR)

This selector is used to select the sound source to be heard
such as a disc, radio broadcast, etc

E Headphones jack (PHONEs)
Speaker selebtors (SPEAKERS)

These selectors are used to select the speaker systems to be ._ '
used.

E Balance control (BALANCE)
This control is used to adjust the left/right volume balance.-
m Loudness switch (LOUDNESS)
This switch Is used when listening to music at a low volIIme
level Auditory perception of sound In the low frequency range
falls oil at low volume, but when the switch Is set to the ON"
position, this deficiency iscompensated for, so that the full im-
pact of the musical performance can be enjoyed.

Mode selector (MODE)
This selector :5 used to select stereo or monaural operation.

- Tape-monitor selector (TAPE MONITOR)
SOURCE/0FF( 1-)]. ):
Set to this position to listen to a phono disc, radio broadcast,
compact distrufloflisiew to: equipment connected io the
auxiliary-inpiit terminals (AUX"):
TAPE/ON( 1-». ):
Set to this position to playback or monitor the sound from a
tape deck. or to listen to the sound processed by a graphic

IEIEI

fl ETone controls (BASS/TREBLE) y equalizer.
The bass control is used to adjust the low- -trequency sound
range and the treble control is used to adjust the high
:quency sound range. * , _
ORear Panel , , ,
PHONO . job i Voltaée
Input input f Adjustment
GND T , TAPE/ADAPT - *' SPEAKER (A)
emiinal ' Output Terminals AClnlet
AC N~
GNi) ____@ . .
Aw I I
-@ 0 G) O G-Qifi
TAPE/ADAPT
REC PLAV ( II I
PHONO TUNE co Aux OUT BACK © © © @ E
SPEAKERS
air? I: 2%
l__l l__....__l
TUNEFI AUX TAPE/ADAPT SPEAKER (B)
input Input Input Terminals

Phona input capacitance is about 270 pF.