Maintenance; Cleaning The Video Heads; Cleaning The Viewfinder; Cleaning The Tape Transport System - Sony HDW-790P Operation Manual

8-2 Maintenance

8-2-1 Cleaning the Video Heads

To clean the video heads, use a Sony BCT-HD12CL
Cleaning Cassette. Follow the instructions given with the
cleaning cassette, as incorrect or excessive use could
damage the video heads.
To clean the heads, perform the following:
Load the cleaning cassette according to the procedure
described in "Loading a cassette" (page 34).
The tape runs automatically in PLAY mode for about 5
seconds to clean the head.
After the tape runs, the cleaning cassette is automatically
ejected.
Note
Do not run the cleaning cassette more than 5 times
consecutively.

8-2-2 Cleaning the Viewfinder

Use a dust blower to clean the CRT screen and mirror
inside the viewfinder barrel.
Clean the lens and protecting filter with a commercially
available lens cleaner.
Caution
Never use organic solvents such as thinner.
Disassembling the eyepiece for cleaning
Viewfinder Eyecup
Protecting
barrel holder
filter
1
Detach the eyepiece from the viewfinder barrel.
For the detaching procedure, see "7-2-4 Detaching the
Eyepiece" on page 120.
Eyecup
Packing
ring
2
Remove the eyecup from the eyecup holder.
3
Remove the protecting filter, together with the packing
ring, from inside the eyecup holder.
4
Detach the protecting filter from the packing ring.
Fog-proof filter
Depending on the temperature and humidity, the protecting
filter may mist because of vapor or your breath. To ensure
that the viewfinder is always clear, replace the protecting
filter with a fog-proof filter (Part No. 1-547-341-11, not
supplied).
Fitting the fog-proof filter
Replace the protecting filter on the packing with the fog-
proof filter.
Be sure to correctly assemble the fog-proof filter, the
packing, and the eyecup so that the reassembled eyepiece
is waterproof.
Note
When cleaning the fog-proof filter, wipe it very gently with
a soft cloth to avoid damaging the anti-fogging coating.
8-2-3 Cleaning the Tape Transport
System
In order to utilize the capability and obtain the best
performance of the camcorder and to prolong the life of the
camcorder and the cassette tape, cleaning the tape
transport system regularly is recommended.
For details on how and when to clean the tape transport
system, contact your nearest Sony dealer.
8-2-4 Performing Maintenance After
Use Under Severe Condition
After using the camcorder in dusty location, or near beach
or hot spring, or when water has got inside the camcorder
due to bad weather or similar situations, inspection and
cleaning is recommended.
For details on inspection and cleaning, contact your
nearest Sony dealer.
135
Maintenance