Maintenance And Inspection - JVC HR-J271MS Service Manual

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2.1.5 Maintenance and Inspection

1. Location of major mechanical parts
In this chapter, the two mechanism speeds are described by comparing the speeds of the standard type and the high-speed
FF/REW type.
It is possible to distinguish between these two types of mechanism by the diameters of their capstan pulleys.
The capstan pulley diameter for the standard type is approx. 32 mm.
The capstan pulley diameter for the high-speed FF/REW type is approx. 43 mm.
For information on the different parts used in the two mechanism types, please refer to the "Replacement of major parts".
T2 Stator assembly
T26 Full erase head
Pole base assembly
T25
(supply side)
T24
T23
T22 Tension brake
assembly
B22 Belt
(loading motor)
B21 Worm gear
B20 Control cam
B19 Brake lever
B18 Cassette gear
B17
2-3
T1 UV catcher2 (supply and take-up side)
T3
Drum assembly
Tension arm
assembly
Adjust pin
Reel disk
T20
(supply side)
T21 Rec safety lever T19 Main brake assembly
(supply side)
Fig. 2-1-5a Mechanism assembly top side
B1 Capstan motor B3
Belt (capstan)
B2
Link lever
B15 Rotary encoder
Change lever assembly
B16 Rotary encoder guide B14
Fig. 2-1-5b Mechanism assembly bottom side
Digitized in Heiloo Netherland
T6 Audio control head
T5 Head base T7 Loading motor
T18 T16 Idler arm assembly
Idler lever
T17 Pole base assembly (take-up side)
Loading arm gear (supply side)
Capstan brake assembly B5
Loading arm gear (take-up side)
B4
B13 Direct gear B10 Take-up head
B12 Clutch unit
T8 Guide pole guard
T9
Pinch roller arm
assembly
T10
Lid guide
Press lever
T11
assembly
T12 Guide arm
assembly
Reel disk
T13
(take-up side)
T14 Sub brake assembly
(take-up side)
T15 Main brake assembly
(take-up side)
Plate
B6
(supply side)
B7 Control
bracket1
Control plate
B8
B9 Tension arm
bearing
Take-up lever
B11
4/5/2017