Service manual

CD-BA120/125
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● General
Power source: AC 120 V, 60 Hz
Power consumption: 35 W
Dimensions: Width; 10-5/8" (270 mm)
Height; 11-13/16" (300 mm)
Depth; 14-11/16" (373 mm)
Weight: 10.6 lbs. (4.8 kg)
● Amplifier section
Output power:
(Except for Canada)
(For Canada)
(CD-BA120)
(CD-BA125)
10 watts minimum RMS per
channel into 8 ohms from
100 Hz to 20 kHz, 10 %
total harmonic distortion
Output terminals: Speakers; 8 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
● Compact disc player section
Type: 3-disc multi-play compact
disc player
Signal readout: Non-contact, 3-beam semi-
conductor laser pickup
D/A converter: 1-bit D/A converter
Frequency
response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)
● Tuner section
Frequency range: FM; 87.5-108 MHz
AM; 530-1,720 kHz
● Cassette deck section
Frequency response: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter: 0.3 % (WRMS)
● Speaker section
Type: 4" (10 cm) full-range speaker
Maximum input power: 20 W
Rated input power: 10 W
Impedance: 8 ohms
Dimensions: Width; 8-11/16" (220 mm)
Height; 11-13/16" (300 mm)
Depth; 7-1/16" (180 mm)
Weight: 4.4 lbs. (2.0 kg)/each
Output power: RMS; 20 W (10 W + 10 W)
(10 % T.H.D.)
Output terminals: Front speakers; 8 ohms
Rear speakers; 16 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
● Rear speaker section (CD-BA125 Only)
Type: 3-3/32"(8 cm) full-range speaker
Maximum input power: 5 W
Rated input power: 10 W
Impedance: 16 ohms
Dimensions: Width; 6" (150 mm)
Height; 6" (150 mm)
Depth; 3" (78 mm)
Weight: 0.9 lbs. (0.4 kg)/each
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.
1. Inspect all lead dress to make certain that leads are not
pinched or that hardware is not lodged between the chassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment covers
or shields, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage
current in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor
paralleled by a 0.15µF capacitor in series with all exposed
metal cabinet parts and a known earth ground, such as
conduit or electrical ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher,
sensitivity to measure the AC voltage drop across the
resistor (See diagram).
* Connect the resistor connection to all exposed metal parts
having a return path to the chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
Specifications for this model are subject to change without
prior notice.
SPECIFICATIONS
CD-BA120/125
CP-BA120/125
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 µ F
1.5k ohms
10W
VTVM
AC SCALE
GBOXS0042AWM1