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3-3. Drum Block
Note
When the rotary head tip was worn or damaged, replace the upper drum assembly. It
cannot be replaced only head tip.
Basic Knowledge
For except the periodic replacement time, replace the upper drum assembly when a
correct RF signal waveform cannot be obtained even if the tracking adjustment is
performed.
Tools
. Hexagonal wrench driver (2.5 mm):
. Torque screwdriver (6 kg.cm)(JB-5251):
. Torque screwdriver (12 kg.cm)(JB-5252):
. Torque screwdriver's bit (+2 mm, l=75 mm):
. Torque screwdriver's hexagonal bit (d=2.5 mm, l=120 mm): J-6251-090-A
. Cleaning cloth:
. Cleaning fluid:
. Upper drum remover:
Preparation
1. Turn the power off.
2. Remove the upper lid. (Refer to Section 1-1-1.)
3. Remove the plate MD. (Refer to Section 1-1-1.)
4. Remove the cassette compartment. (Refer to Section 1-1-2.)
3-24
7-700-766-04
J-6252-510-A
J-6252-520-A
J-6323-420-A
3-184-527-01
9-919-573-01
Supplied with a new
repair upper drum
GY-2120WD/WS
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Troubleshooting
