Maintenance; Specifications - Sony LBT-V3500 Operating Instructions Manual

Maintenance

To clean the tape heads and tape
path
Contaminated tape heads cause poor
recording or sound dropout in playback.
We recommend cleaning after every 10
hours of operation.
Open the cassette holder and wipe the
heads, pinch rollers and capstans with a
cleaning swab slightly moistened with
cleaning fluid or alcohol. Wipe the parts
shown below:
Deck A
Cleaning swab
Capstan
Playback head
Pinch roller
Deck B
Cleaning swab
Capstan
Record/playback
head
Erase head
Pinch roller
Insert a tape after the areas cleaned are
completely dry.
To demagnetize the tape heads
After 20 to 30 hours of use, enough residual
magnetism will have built up on the heads
to begin to cause loss of high frequencies
and hiss. At this time, demagnetize the
heads and all metal parts in the tape path
with a commercially available tape head
demagnetizer. Refer to the instructions of
the demagnetizer.
To clean the cabinet
Use a soft cloth slightly moistened with a
mild detergent solution.
To clean the CD
When a CD is dirty, clean it with a cleaning
cloth. Wipe the CD from the centre out.
Notes on CDs
• Do not use solvents such as benzene,
thinner, commercially available cleaners,
or antistatic spray intended for vinyl LPs.
• If there is a scratch, dirt or fingerprints on
the CD, it may cause a tracking error.

Specifications

Video CD / CD-G / CD player section
System Compact disc and
digital audio system
Laser Semiconductor laser
(λ = 780 nm)
Emission duration:
continuous
Max 44.6 µW*
laser output
* This output is the value measured at a
distance of 200 mm from the objective
lens surface on the Optical Pick-up Block
with 7 mm aperture.
Wavelength 780 – 790 nm
Audio
Frequency response:
2 Hz - 20 kHz
Signal-to-noise ratio:
More than 90 dB
Dynamic range:
More than 90 dB
Video
Colour system format:
NTSC, PAL
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
87.5 – 108.0 MHz
(50 kHz step)
Aerial FM wire aerial
Aerial terminals 75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
AM: 531 – 1,602 kHz
(with the AM tuning
interval set at 9 kHz)
530 – 1,710 kHz
(with the AM tuning
interval set at 10 kHz)
Aerial AM loop aerial
External aerial
terminals
Intermediate frequency
450 kHz
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
40 – 13,000 Hz (±3 dB), using
SONY TYPE I cassette
40 – 14,000 Hz (±3 dB), using
SONY TYPE II cassette
Wow and flutter
±0.15% W.Peak (IEC)
0.1% W.RMS (NAB)
±0.2% W.Peak (DIN)
Amplifier section
Peak music power output:
(LBT-V3500)
1,000 W (6 Ω at 1 kHz, 10%
THD)
(LBT-V4500)
1,200 W (6 Ω at 1 kHz, 10%
THD)
Continuous RMS power output:
(LBT-V3500)
60 W + 60 W (6 Ω at 1 kHz, 5%
THD)
(LBT-V4500)
(40 W + 40 W) × 2 (6 Ω at 1
kHz, 5% THD)
Inputs
PHONO IN (phono jacks):
Sensitivity 3 mV, impedance
47 kilohms
VIDEO/AUDIO IN (phono jacks):
Sensitivity 250 mV , impedance
47 kilohms
MIC (phone jacks):
Sensitivity 1 mV, impedance
10 kilohms
Outputs
VIDEO/AUDIO OUT (phono jacks):
Sensitivity 250 mV , impedance
1 kilohms
PHONES (phone jack):
accept headphones of 8 ohms or more
(FRONT*) SPEAKER: accept impedance of
6 to 16 ohms
SURROUND SPEAKER:
(Malaysian, Mexican and Singapore model)
accept impedance of 16 ohms
(other models)
accept impedance of 8 to
16 ohms
SUPER WOOFER*:
accept impedance of 6 to
16 ohms
VIDEO OUT (phono jack):
max. output level 1 Vp-p,
unbalanced, sync negative,
load impedance 75 ohms
S-VIDEO OUT (4-pin, min DIN jack):
Y: 1 Vp-p, unbalanced, sync
negative
C: 0.286 Vp-p,
load impedance 75 ohms
* LBT-V4500 only
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