Notes On Use - Sony DSR-50P Service Manual

a)
Indicator lamp (flash/on)
LCD
Display
Unit Camera
monitor
window
WARNING REC/Tally
BATT
Rapid
e ON ON
flashing
Rapid Rapid
Z Z
flashing flashing
a) The indicator flashes 3.2 times per second in the rapid flashing mode and flashes 0.8 time per second in the slow flashing
mode.
Notes on the video cassettes
If the cassette memory function does not work
Reinsert the cassette a few times. The terminal portion
of the cassette may be dusty or dirty.
Cleaning the terminal
If the terminal of the cassette gets dirty, or dust sticks
to the terminal, the unit may not work correctly.
Clean the terminal with the swab once every ten times
you eject a cassette.
Terminal
When affixing a label to the cassette
Be sure to affix a label on only the correct location so
as not to cause malfunction of the unit.
After using a cassette
After use, please be sure to rewind the tape completely
(to prevent picture and sound distortion). Return it to
its case and store it in an upright position.
About moisture condensation
If the unit or tape is brought directly from a cold to a
warm location, moisture may condense inside or
outside the unit or tape. If you use the tape or video
heads in this condition, the tape may adhere to the
head drum, and the video heads or the tape may be
damaged, or malfunction may occur.
Moisture condensation is likely to occur under the
following conditions:
¥ The unit or tape is brought from the cold outdoors to
a warm indoor location.
¥ The unit or tape is brought from the air-conditioned
indoors to the hot outdoors.
¥ The unit is used in a place subject to cold currents
from an air conditioner.
Beep Description/Recovery
The power voltage is very low. t If you are using a
battery pack, replace the battery pack because there
No is no battery charge. If you are using an AC adaptor,
beep
select NI-CD in uREMAIN. If the warning is still
displayed, use an AC adaptor that meets the
specifications of the unit.
The unit is running the self-diagnostics (See page 98
Beep (GB)) . This warning display is erased when you turn
on/off the power of the unit.
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Chapter 7 Maintenance (GB)
When bringing the unit or tape from a cold place to a
warm place or vice versa, put it in a plastic bag and
seal the bag tightly. After bringing it into the new
place, leave the bag on for more than one hour, and
remove the bag when the air temperature inside it has
reached the temperature surrounding it.
If moisture condensation occurred
You cannot operate the unit except to press EJECT,
and the cassette cannot be inserted. If this occurs, turn
on the power to remove the cassette, then keep
opening the cassette lid, and finally wait more than one
hour for the moisture to evaporate.
Digital hours meter
The digital hours meter keeps cumulative counts of the
total operation time, the head drum rotation time, the
tape running time and the number of unthreading
operations. These counts can be displayed on the
monitor screen. Use them as guidelines for scheduling
maintenance.
In general, consult your Sony dealer about necessary
periodic maintenance checks.
The digital hours meter has the following four display
modes and you can check them in HRS METER of the
OTHERS menu (See page 92 (GB)).
¥ OPERATION mode
The cumulative total hours of operating time is
displayed in 10-hour increments.
¥ DRUM ROTATION mode
The cumulative total hours of drum rotation with tape
threaded is displayed in 10-hour increments.
¥ TAPE RUN mode
The cumulative total hours of tape running time is
displayed in 10-hour increments.
¥ THREADING mode
The cumulative number of tape unthreading
operations is displayed in 10-operation increments.
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Chapter 7 Maintenance (GB)

Notes on Use

Notes on Use
Notes on the videocassette recorder
Do not use the unit in a place subject to direct
sunlight or heat sources
If you do, its cabinet, mechanical parts, etc., may be
damaged.
Do not use the unit in an extremely hot place
If the unit is left in a car parked with its windows
closed (especially in summer), its cabinet, mechanical
parts, etc., may be damaged or it may not work
correctly.
If the unit is brought directly from a cold to a
warm location
Moisture may condense inside the unit and cause
damage to the video heads and tape. If you use the unit
in a place subject to direct cold currents from an air
conditioner, moisture may also condense inside the
unit.
Do not place a heavy object on the unit
The cabinet, mechanical parts, etc., may be damaged,
or the unit may not work correctly.
Do not handle the unit roughly
Avoid rough handling or mechanical shock.
To avoid damaging the cabinet's finish
Plastic is partially used for the surface finishing of the
unit. Do not spray a volatile solvent such as an
insecticide toward the cabinet or place rubber or vinyl
products on the cabinet for a long time. If you do, the
finish of the cabinet may be damaged or the coating
may come off.
Do not clean the cabinet with thinner or
benzine
The cabinet may be damaged or its coating may come
off. When you use a chemical-impregnated cloth, use
it according to its directions.
Clean the cabinet with a soft dry cloth
When the cabinet is very dirty, clean it with a soft dry
cloth lightly moistened with a mild detergent solution
and finish it with a dry cloth.
Do not put magnetic objects close to the unit
Magnetic fields may damage the recording.
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(GB) Chapter 7 Maintenance
Notes on Use
Self-diagnostics function
The unit has a self-diagnosis display function.
This function displays the current condition of the unit
as a five-digit code (a combination of a letter and
numbers) on the display window, the LCD monitor and
VIDEO OUT1 output. If a five-digit code is displayed,
check the following code chart. The last two digits
(indicated by ss) will differ depending on the state
of your unit.
Code Symptom Remedy
C:21:ss Moisture Remove the cassette
condensation has and keep the cassette
occurred. lid open and turn the
power on, then wait
more than one hour.
C:22:ss The video heads are Clean the heads using
dirty. the cleaning cassette
(supplied).
C:31:ss To prevent the unit • Remove the cassette,
from malfunctioning, or turn on/off the unit.
the self-diagnosis
• Disconnect the
function has taken
battery and AC
over.
adaptor. After
reconnecting them,
operate the unit.
C:32:ss To prevent the unit • Turn on/off the unit.
from malfunctioning,
• Disconnect the
the self-diagnosis
battery and AC
function has taken
adaptor. After
over.
reconnecting them,
operate the unit.
If you are unable to resolve the problem, or a code
other than those in the above chart appears, contact
your Sony dealer or local authorized Sony service
facility and inform them of the number.
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(GB) Chapter 7 Maintenance
1-23E 1-23
To prevent electromagnetic interference
caused by radio communication equipment
such as cellular phones, transceivers, etc.
The use of the radio communication equipment such as
cellular phones or transceivers near the unit may cause
a malfunction and can affect the audio/video signals.
The cellular phones or transceivers near the unit
should be switched off.
Do not use the unit in an area exposed to
radiation
A malfunction may occur.
Checking the video heads every 1000 hours
A VCR is a high-precision piece of equipment that
records and plays back the picture on a magnetic tape.
In particular, the video heads and other mechanical
parts may become dirty or worn. To maintain a clean
picture, we recommend maintenance every 1000
hours, even though the conditions of use may differ
depending on temperature, humidity, dust, etc.
Cleaning of the video heads
If the video heads are contaminated, the pictures
cannot be recorded properly or the playback pictures
become noisy. If the following phenomena occur, use
the cleaning cassette (supplied) to clean the heads.
¥ Square-shaped noise appears on the playback picture.
¥ A part of the playback picture does not move.
¥ The playback picture does not appear on the screen.
Symptoms caused by contaminated video heads
Normal picture If these pictures appear on the
screen, use the cleaning cassette.
To use the cleaning cassette
Refer to your cleaning cassette s operating
instructions.
After prolonged use, the video heads may become
worn out. If optimum picture quality is not restored
even after you have cleaned the video heads with the
cleaning cassette, the video heads may have worn out.
In that case, you have to replace the video heads with
new ones. Please consult your Sony dealer.