Technics SE-CH505A User Manual

SE-CH505A. |
@ Contents
Page
Page
@BEFORE
REPAIR
................
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cece
e
ee
eee
tees
2
@SCHEMATIC
DIAGRAM
..............
0.00
ce
eee
eee
13-17
@PROTECTION
CIRCUITRY
............000
ccc
eee
eee
eee
2
@PRINTED
CIRCUIT
BOARD
DIAGRAM
................
18~20
@ACCESSORIES
..........
0...
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eee
ee
eeee
2
eWIRING
CONNECTION
DIAGRAM
...................005
eCAUTION
FOR
AC
MAINSLEAD.....................0-5
3
@BLOCK
DIAGRAM
.............
0.0.
cece
eee
enna
e@STACKING
THE
COMPONENTS
..................-000
0
ee
4
@FUNCTION
OF
IC
TERMINALS
....................0
0005
@CONNECTIONS
.........
0.0...
cece
eee
eee
eee
es
5-8
@REPLACEMENT
PARTS
LIST
.................0000
es
23~26
@LOCATION
OF
CONTROLS
............
0.00
c
ce
eee
ee
eee
8
F
@CABINET
PARTS
LOCATION
.............00000ececuces
eDISASSEMBLY
INSTRUCTIONS
...................005
9~12
@PACKAGING
.........0.
00.
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ee
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teens
28,
29
@ Before Repair
(1) Turn off the power supply. Using a 10, 10 W resistor, connect both ends of power supply capacitors (C701, C702) in order to discharge the
voltage.
(2) Before turning the power supply on, after completion of repair, slowly apply the primary voltage by using a power supply voltage controller to
make sure that the consumed current at 50/60 Hz in NO SIGNAL mode should be shown below with respect to supply voltage 230 V~240 V.
Power supply voltage AC 230 V AC 240 V
Consumed current 50 Hz 80~180 mA 80~180 mA
@ Protection Circuitry ©
The protection circuitry may have operated if either of the following conditions is noticed:
“No sound is heard when the power is switched ON.
“Sound stops during a performance.
The functions 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 this unit are used.
If this occurs, follow the procedure outilined below:
1. Switch OFF the power. .
2. Determine the cause of the problem and correct it.
3. Switch ON the power once again.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first switched OFF and then ON again.
@ Accessories
AC power supply cord ................ 1pc. Flatcable(Long).................... 1pc. Speakercords..................... 2 pes.
(VJA0733) (RJA0019-2K) (REX0511) (REE0393)
. for (EB) area ...for (E) (EG) areas
Remote contro! transmitter ............ 1pe. Flatcable (Short) ................... 1 pe.
(RAK-CH101WH) (REX0512) AM loop antenna (RSA0010) .......... 1 pc.
Antenna holder (RMNO244) ........... 1 pc.
Screw (XTN3+12AFZ) .............4. 1 pe.
Ca
FM indoor antenna ................-. 1 pe.
Remote control batteries ............. 2 pcs. (RSA0007)
(UM-4, AAA, R03)
Note:
These
are
available
on
sale
route.
(SJP9009)...for
(EB)
area
©)
Attachment plug .............-..002. 1pe.

Technics SE-CH505A Specifications

General

Brand	Technics
Model	SE-CH505A
Category	Amplifier
Language	English