Sony SRW-5000 Maintenance Manual page 138

For Failure during the [F2] (PB CH CHK)
(1) If a check is performed without using an alignment tape, recheck using an alignment tape.
When no abnormality is found, the check is completed.
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When no abnormality is found during the check using the alignment tape, a trouble (tape is damaged
or recording is not done properly) is considered to exist on the tape portion used in the previous
check.
(2) Change the playback portion on the alignment tape.
Recheck in the menu [F2] (PB CH CHK). When no abnormality is found, the check is completed.
(3) Clean the drum using a cleaning tape according to Section 4-2-1 (the amount of the tape used is 5
seconds).
Recheck in the menu [F2] (PB CH CHK) using the alignment tape.
When no abnormality is found, the check is completed.
(4) Clean the drum using the cleaning tape again (the amount of the tape used is 15 seconds).
Recheck in the menu [F2] (PB CH CHK) using the alignment tape.
When no abnormality is found, the check is completed.
(5) Clean the drum (rotary heads) with a cleaning cloth referring to Sections 4-2-2 and 4-2-3.
Recheck in the menu [F2] (PB CH CHK) using the alignment tape.
When no abnormality is found, the check is completed.
For Failure during the [F3] (REC CH CHK)
(6) Check in the [F2] (PB CH CHK) with alignment tape. When the result is OK, perform (2) and later.
(7) Adjust the recording current in the [F5] (REC ADJ) of the RF ADJUST menu referring to Section 3-
4-5.
Recheck in the [F3] (REC CH CHK) after recording any video signal again for two minutes or more.
When no abnormality is found, the check is completed.
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The recorded data on the tape will be overwritten in checking in the [F3] (REC CH CHK). Before
the recheck, record any video signal again on the tape for two minute or more.
(8) Clean the drum using a cleaning tape according to Section 4-2-1 (the amount of the tape used is 5
seconds).
Recheck in the [F3] (REC CH CHK) after re-recording any video signal on the tape for two minutes
or more.
When no abnormality is found, the check is completed.
(9) Clean the drum using the cleaning tape again (the amount of the tape used is 15 seconds).
Recheck in the [F3] (REC CH CHK) after re-recording any video signal on the tape for two minutes
or more.
When no abnormality is found, the check is completed.
(10)Clean the drum (rotary heads) with a cleaning cloth referring to Sections 4-2-2 and 4-2-3.
Recheck in the [F3] (REC CH CHK) after re-recording any video signal on the tape for two minutes
or more.
When no abnormality is found, the check is completed.
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SRW-5000/5500