Technics SU-Z65 Service Manual

LOCATION OF CONTROLS. ..........-22.-0.0-22-05 2 HOW TO REPLACE CHIPS (RESISTORS) ......-....... 11
BEFORE REPAIR AND ADJUSTMENT .......-.-...-005% 3 BLOCK DIAGRAM. ... 2... . eee eee eee eens 15
TECHNICAL GUIDES... 2... ee ee ee ee ee 4 TERMINAL GUIDE OF TRANSISTORS, DIODES AND IC’S. . 15
PROTECTION CIRCUITRY ........... anes ohcoha, Mancaaa te yl 6 SCHEMATIC DIAGRAM .... 0... . 2... cee ee es 17
DISASSEMBLY INSTRUCTIONS .............-6..0-- 6 REPLACEMENT PARTS LIST. ......-...-22-0-00000- 21
MEASUREMENTS AND ADJUSTMENTS .............-. 9 EXPLODED VIEW... 1... ccc ee ee 22
PRINTED CIRCUIT BOARDS ..............0020005 1 RESISTORS & CAPACITORS. ....... 2.22 eee eee 24
Hi LOCATION OF CONTROLS
Meter range selector ( ML x1, .m x 0.01) Subsonic filter ( Hoff = on)
FL
peak
power
level
meter
High
filter
(
M
off
=
on)
Power— Ba} en aS. S sk 5 Volume control
Headphones jack
‘
Phono
Speakers]
Tuner—}
Input
selector
Aux
Tape 2( HM source - tape 2 )
Bass
i
F trol | Tape monitor
ee Ont Es aan Tape 1( Mf source m tape 1/dubbing1 >» 2)
Balance control —4 —Loudness( M off = on)
(Unswitched) A€ outieis
Main speakers (Switched) (For [XA] area only)
Voltage selector
Ph
input
(on
the
bottom
board)
BE (For [XA] area only)
Tuner input Remote speakers
Aux input
® The power supply for this unit varies depending upon the areas. Also, the parts used for power supply are different.
So, refer to the circuit diagram and the replacement parts list.
* 220V (50/60Hz) for continental Europe.
* 240V (50/60H2z) for United Kingdom and Australia.
* 110V/120V/220V /240V (50/60Hz) for other areas.
— [XA area] for other areas is provided with voltage selector and AC outlets.
* Phono input capacitance is about 150pF.

Technics SU-Z65 Specifications

General

Brand	Technics
Model	SU-Z65
Category	Amplifier
Language	English