JVC HR-D540EE - Page 22

C. Main mechanical parts
See Figs. 1-3-1, 1-3-2 and 1-3-3.
1 |M32A Upper drum assy
2 |M44 Full erase head
3 ;5101 End sensor
4 {M41 Tension arm assy
5 |M42 Tension band assy
6 |M32C Lower drum motor assy
7 |M461 REC safety switch (S2)
Fig. 1-3-3 Side view of cassette housing 8 |M32D Bjueh amey
A.
Cleaning
9
|M449
Half
loading
gear
assy
Periodic cleaning of the tape transport system is desirable, M447 Guide arm assy
but ordinarily not feasible in practice. Therefore, perform M48 A/C head
cleaning when a set is brought in for repairs or maintenance.
Contamination of the video heads, tape guides and brushes Meee Capetan motor
can detract from playback picture quality and in extreme M442 Pinch roller arm assy
cases, a ae ee tape. For eae use a Cee M434 Loading motor assy
tt t t text i -shi
co ton clow (about the texture of a white dress-shirt) M446 Pinch wollereain
moistened in alcohol.
e To clean the video heads, press the moistened cloth mae ponies
gently against the upper drum with fingertip and turn M437 Loading belt
the drum by hand. M460 LED holder (D1)
¢ Do not use a vertical stroke, as this may damage the ;
Lakai M430 Reel disk (take-up)
heads.
M424 Idler gear unit
B. Lubrication M429 Timing belt
Oil and grease do not normally require periodic replenshing. 51PHS1 Take up reel sensor (PS1)
Appl i i d
pply only when replacing lubricated parts (also clean an M426 Clutch unit
replace lubrication of mating parts if soiled).
For parts and points to apply oi! and grease, refer to the Nes Rane: Upiloedingualy Bey
exploded views of the mechanism assembly. M432 Supply loading arm assy
Before oiling, clean with alcohol. M439 Plate assy
Apply one or two drops of oil. Avoid excess oil. M462 Slide switch (S3)
1. Table 1-1 indicates the oil and grease used in this set. 56PHS3 Cassette sensor (PHS3)
Use these or recommended focally available equivalents. 5602 Start sensor (Q2)
COSMO-HV56
Grease KANTO-G-31KAV
Category M36 Cassette housing assy
M470 Reel disk (supply)
51PHS2 Supply reel sensor (PS2)
Table 1-1
Symbol interpretation example
2. Grease is not required for a replacement cassette housing 56 Q2
assembly, as this has been applied at the factory. ats re
ef. No.
Note: Stir grease that bas been stored for an extended period.
Exploded view symbol Board No.
1-6