Technics SECA 1060 Service Manual

Page 1

ORDER NO. ADE/40617108

Service Manual

Am lifier
Stereo Amplifier p
Colour
Remote Control
SL-CA1060 ST-cmoso Transmitter (K) Black Type
Area
Suffix for
Model No. Area Colour
(E) Europe.
(EB) Great Britain.
(EG) Germany and ltaly. .
. . (K)
ASla, Latin AmerIca,
SB-CA1060 RS-CAIOGO sE-CA1060 SB-CA1060 (GC) Middle Near East
and Africa.
Because of unique interconnecting cables, - (GN) Oceania.
when a component requires service, send or
bring in the entire system. System: SC-CAi 060
I POWER AMPLIFIER I General
Power output Power consumption 165 W
DIN 1 kHz, THD 1%, both channel driven 2 x40 W (6 (1) Power supply
Total harmonic distortion [For (E, EG) areas.) 230 V, AC 50/60 Hz
Rated power at 1 kHz 0.9% (6 (2) [For (EB, GN) areasJ 230-240 V. AC 50/60 Hz
Hall power at 1 kHz 0.009% (6 O) [For (GC) area.1 110/127/220/240 V. AC 50/60 Hz
Load Impedance Dimensions (W x H x D) 280 x1185 x 331.5 mm
MAIN 6-8 (2 Weight
SIN (rated power) [For (E, EB, EG, GN) areas.] 4.5 kg
MAIN 90 dB [For (GC) area.) 4.7 kg
Tone
BASS 80 Hz (:6 dB) Notes:
TREBLE 20 kHZ (i6 dB) 1. Design and specifications are subject to change without notice.
V-BASS 60 H2 (0-8 dB) Weight and dimensions are approximate.
2. Total harmonic distortions is measured by the digital spectrum
analyzer.
System Stereo Tuner Compact Disc Player Stereo Amplifier Cassette Deck Speakers
SC-CA1060 ST-CAIOSO SLLCAIOGO SE-CA1060 RS»CA1060 *SB-CA106O

TechniCS®

*Made in PAES.

Page 2

I CONTENTS

PROTECTION CIRCUITRY .................
BEFORE REPAIR AND ADJUSTMENT.
LOCATION OF CONTROLS
ACCESSORIES
OPERATION CHECKS AND

COMPONENT REPLACEMENT PROCEDURE.
REPLACEMENT OF THE FOOT ............................
POWER SOURCE ONIOFF OF THIS UNIT SE-CA1060.
MEASUREMENTS AND ADJUSTMENTS ....................

SCHEMATIC DIAGRAM
BLOCK DIAGRAM .........
PRINTED CIRCUIT BOARDS .
WIRING CONNECTION DIAGR
CABINET PARTS LOCATION .
REPLACEMENT PARTS LIST..
PACKAGING

RESISTORS AND CAPACITORS

Note: Refer to the placement Installation and Connections and Concerning the remote control and Quick referenc of
remote control operation of Service manual for Model No. ST-CA1060 (E, E6), Order No. AD940615362.

I PROTECTION CIRCUITRY

The protection circuitry may have operated if either of
the following conditions is noticed:

- No sound is heard when the power is turned on.

0 Sound stops during a performance.

The function of this circuitry is to prevent circuitry
damage if, for example, the positive and negative
speaker connection wires are shorted, or if speaker
systems with an impedance less than the indicated
rated impedance of the amplifier are used.

If this occurs, follow the procedure outlines below:
1. Turn off the power.

2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.

Note:

When the protection circuitry functions, the unit will
not operate unless the power is first turned off and
then on again.

I BEFORE REPAIR AND ADJUSTMENT

Disconnect AC power, Discharge both Power Supply Capacitors C701 and C702 through a 10!), SW resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdrive blade, for instance), as this may distroy solid state devices. After
repairs are completed, restore power gradually using a variac, to avoid overcurrent.

Current consumption at 50 Hzl60Hz in N0 SIGNAL mode should be shown below with respect to supply voltage

230VI240VVI110-127VI220-240V.

Power supply voltage AC 230V

AC 240V AC110~127V AC 220-240V

Consumed current 50/60Hz

50HZ 60~180mA 50Hz 50~170mA 50Hz 100~360mA 50Hz 50~180mA

60HZ 48~144mA 60Hz 40~136mA SOHZ 80~288mA BOHZ 40~144mA

ILOCATION OF CONTROLS

Stereo amplifier section £2: a Q: Q) \
6) Power STANDBY (b/ON" °° :m M"""

switch ( l l:

(POWER, STANDBY (DION) [=3'WGE5WW °° m 9 ° °

Press to switch the unit from on to
standby mode or vice versa. In standby
mode, the unit is still consuming a small
amount of power.

(2 Standby indicator (STANDBY)
When the unit is connected to the AC
mains supply, this indicator lights up in
standby mode and goes out when the
unit is turned on.

© Headphones jack
@ Output power meters \\ I // \\\\ I/
s. BASS control ~
® BASS control

62 TREBLE control