Connector Input/Output Signals; Cleaning Video Head - Sony SRW-1 Maintenance Manual

1-4. Connector Input/Output Signals

Input
AUDIO INPUT CH-1/CH-2:
Analog audio:
Impedance:
TC IN: 0.5 to 18 Vp-p
Impedance:
Output
1.0 V p-p (75 Z), 2.2 V p-p (10 kZ)
TC OUT:
EARPHONES: _17 dBu
CTRL PANEL: 9-pin (for connection to control
panel)
(External view)
Pin No. Signal name
1 GND
2 SYS_PANEL_TX (+)
3 SYS_PANEL_TX (_)
4 SYS_PANEL_RX (+)
5 SYS_PANEL_RX (_)
6 REF_FRAME
7 UNREG +12V
8 UNREG +12V
9 GND
1-2 (E)
LINE/MIC/+48 V ON
selectable
5 kZ
10 kZ

1-5. Cleaning Video Head

When the heads are clogged, clean them by the following
steps below using a cleaning tape.
If head clogging cannot be cleaning even though the
following "How to Use the Cleaning Tape" is implement-
ed, clean the heads by referring to "4-2. Cleaning".
How to Use the Cleaning Tape
Required tool
. Cleaning tape BCT-HD12CL
n
Be sure to use the cleaning tape that is specified above.
If any cleaning tape other than the specified one is used, it
can result in abnormal abrasion or fatal damage of video
heads.
1. Insert the cleaning tape BCT-HD12CL in the unit.
2. Head cleaning starts automatically. After about five
seconds of tape running, the cleaning tape is ejected.
3. Confirm that the head clogging is removed.
If the heads remain clogged even after the above step 2
is implemented, clean the heads with the cleaning
cloth.
(Refer to "4-2-3. Cleaning Tape Running Surface of
Upper Drum and Video Heads.")
SRW-1