7-1
DSR-70/70P
SECTION 7
TAPE PATH ADJUSTMENT
Tape guide
adjustment driver
Tape guide
TG1 arm assembly
Tape path adjustment is very important adjustment to run tape under the optimum conditions for tape.
If this adjustment is not performed correctly, tape can be damaged.
Perform this adjustment with utmost attention.
Perform this adjustment after cassette compartment is removed from VTR.
7-1. GENERAL INFORMATION FOR TAPE PATH ADJUSTMENT
Required tools
1. Alignment tape
The following alignment tapes are necessary for
tape path adjustment.
. XH2-1AST (Standard cassette) : 8-967-999-02
. XH5-1A (Standard cassette) : 8-967-999-21
(NTSC)
. XH5-1AP (Standard cassette) : 8-967-999-25
(PAL)
2. Tape guide adjustment driver
The following tape guide adjustment driver
which is available as the Sony service tool is
necessary for height adjustment of tape guide.
. Tape guide adjustment driver: J-6082-362-A
3. The required tools in addition to the above listed
tools.
. Oscilloscope (Tektronix 2445B or equivalent)
. Small mirror for adjustment : J-6080-710-A
. Cleaning cloth : 3-184-527-01
. Cleaning fluid : 9-915-573-01
. Blank tape
(Commercially available tape, SONY DVM30
ME or equivalent)
Preparation of Tape Path Adjustment
4. Cassette compartment
Perform the tape path adjustment after cassette
compartment is removed from VTR. When a
cassette is set on the VTR, place a weight (about
300 g) on a cassette so that a cassette is securely
fixed in position.
5. Cleaning the tape contact
(1) Clean the tape running surface of tape
guides, head drum and video head using the
cleaning cloth moistened with cleaning
fluid.
Cleaning cloth : 3-184-527-01
Cleaning fluid : 9-919-573-01
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