Technics SA-EX100 Service Manual

SA-EX100
ШАМ Tuner Section
Frequency range
AM (...EG) / MW (...E,EB) 522 — 1611kHz (9kHz steps)
530 — 1620kHz (10kHz steps)
LW... (Е,ЕВ) 144 — 288kHz
Sensitivty
AM (...EG) / MW (...E,EB) 20У, 330nV/m
LW... (Е,ЕВ) 45uV
Selectivity
АМ (...EG) / MW (...E,EB) (at 999kHz) 55dB
LW... (E,EB) (at 252kHz) 55dB
Image rejection
AM (...EG) / MW (...E,EB) (at 999kHz) 40dB
LW... (E,EB) (at 252kHz) 40dB
IF rejection
АМ (...EG) / MW (...E,EB) (at 999kHz) 55dB
LW... (E,EB) (at 252kHz) 55dB
Ш Contents bags
BEFORE REPAIRANDADJUSTMENT.................................... 2
PROTECTION CIRCUITRY 2
AGGESSORIES аса нана ава 2
OPERATION CHECKS & МАМ COMPONENT REPLACEMENT 3-6
CAUTION FOR AC MAINSLEAD............................................. 7
TROUBLESHOOTING aonais oceans 8-9
TERMINAL FUNCTION OF ICs ............ i 10
TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES ...... 10
@Before Repair and Adjustment
Ш General
Power consumption
Power supply
190W (standby condition : 3W)
for Е,ЕВ АС 230 – 240V, 50Hz
for EG AC 230V, 50Hz
Dimensions (W xH xD) 430 х 136 x 309mm
Weight 7.0kg
Notes :
1. Specifications are subject to change without notice.
Weight and dimensions are approximate.
2. Totalharmonic distortion is measured by the digital spectrum analyzer.
Page
ЭСНЕМАТІСМАСНВАМ.........амм4ммама1.0 ыы ыы. 11-20
BLOCK DIAGRAM ............................ .... 21-93
WIRING CONNECTION DIAGRAM .. 24
PRINTED CIRCUIT BOARD ............. 25-29
CABINET PARTS LOCATION... 30
REPLACEMENT PARTS LIST... 31~ 32
RESISTORS а CAPACITORS... .- 33-35
РАСКАСІМО;....2..524..-бөкенеедсектекіккмусе eae 36
Disconnect AC power, discharge four Power Supply Capacitors (C703 to C706) through а 100 , 5W resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
For E, ЕВ: Current consumption at 230V — 240V, 50Hz in NO SIGNAL mode should be between 120mA to 350mA.
ForEG :Сштепі consumption at 230V, 50Hz in NO SIGNAL mode should be between 130mA to 380mA.
Ш Protection Circuitry
The protection circuitry may have operated if either of the following
conditions are noticed:
* No sound is heard when the power is turned on.
* 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.
Ш Accessories
Remote control unit
(EUR642175)........
AC power supply cord
(RJA0019-2K .. E,EG) ... 1 pc
Attachment plug
AC power supply cord
(SJP9009 .. EB) ... 1 pc
(VJAO733 .. ЕВ)... 1 pc
If this occurs, follow the procedure outlines below:
1. Tum 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.
AM loop antenna set
(В5А0010).... 1 set
FM indoorantenna
(RSAO0007) ....... 1pc
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Technics SA-EX100 Specifications

General

Brand	Technics
Model	SA-EX100
Category	Stereo Receiver
Language	English