Teac A BX10 PA B10 Service Manual

Page 1

TEAC

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Effective : April 1995

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SERVICE MANUAL

A-BX10/PA-B10

integrated Stereo Amplifier / Balanced MM/MC Preamplifier

NOTES

0 PC boards shown are viewed from parts side

.The parts with no reference number or no parts number in the
exploded views are not supplied.

.As regards the resistors and capacitors. refer to the circuit
diagrams contained in this manual.

.AParts marked with this sign are safety critical components.
They must be replaced with identical components - refer to
the appropriate parts list and ensure exact replacement.

.Parts of [ ] mark can be used only with the version designated
[C] :CANADA [E] :EUROPE [UK] :U. K,

A-BX10(N) :Gold Version A-BXIO(B) :Black Version

0001 44500A

Page 2

A-BX10/PA-B10

1 SPECIFICATIONS

Continuous Power Output (HMS):

100W+100W (20 - 20,000 HZ, 8 ohms)
160W+160W (20 - 20,000 Hz, 4 ohms)

Dynamic Power Output (EIA):

1 20W+120W (8 ohms)
220W+220W (4 ohms)

Total Harmonic Distortion:

(Continuous rated output power)
0.04% (20 - 20,000 Hz, - 1 dB, 8 ohms)
0.06% (20 - 20,000 Hz, - 1 dB, 4 ohms)

Input Sensitivity/Impedance:

CD, TUNER, AUX, TAPE: 300 mV/Zok ohms
BALANCED (XLR): 1 VIzok ohms

Output Level/impedance:

TAPE 1, TAPE 2: 300 mV/100 ohms

Signal-to-Nolse Ratio (IHF A):

CD, TUNER, AUX, TAPE: 106 dB

Frequency Response:
CD, TUNER, AUX, TAPE, BALANCED:
20 - 40,000 Hz, - 1 dB

Power Requirements/Power Consumption:
120VAC, 60 Hz, 5A
(U.S.A./Canada/Generai Export Mode!)
230 V AC, 50 HZ, 500 W
(Europe/UKIGenerai Export Model)

Dimensions (W x H x D):
443 X103 x 381mm

Weight (net): 11.8 kg

Standard Accessories:
AC cord x 1, Owners Manual x 1

Olmprovements may result in specification or feature
changes without notice.

Installation procedure PA-B1o

0 Disconnect power line cord.

1.

Using a hexagon-head tool, remove the top cover of
A-BX1o. Insert the four spacers into the holes in the
main PCB.

. Remove the four jumpers on P11, one jumper JP1 and

the one lumper on P10 (Pins 3 & 4) on the main PCB.

.Connect the long wires connector of PA-B10 to P11,

and the short wires connector to P10 on the main PCB.

. Fix the PA-B1o on the spacers using the tour screws

provided.

.Before fixing the top cover again, select the right

position of SW1 (MM or MC) and SW2 (For MC
cartridges, the impedance set to 22 $2 or 100 S2 ) on
PA-B10.

. Connect the turntable to the AUX terminals and GND

terminal of A-BX10.

Screw x 4
SW!

Phon. sel.
[1: MM 3W2 :1
_ M imp .
fl.MC E1: 22 ohm

Page 15

TEAC SCHEMATIC DIAGRAM A BX'IO
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INSTRUCTIONS FOR SERVICE PERSONNEL
BEFORE RETURNING APPLIANCE TO THE CUSTOMER, MAKE LEAKAGE-
CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS AFIE AOCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT.

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MAIN PCB(2/2)

NOTES:

1. Reslstorvalues are In ohms (k:klIo-ahms, M=magohms).

2. capacitor values are In mlcmfarads (p immdsI,

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