Maintenance And Inspection - JVC HM-DH30000U 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".
UV catcher2 (supply and take-up side)
T1
T3
T2 Stator assembly
T26 Full erase head
T25 Pole base assembly
(supply side)
T24 Tension arm
assembly
T23
Adjust pin
T22 Tension brake
assembly
Reel disk
T20
(supply side)
Main brake assembly
T21 Rec safety lever T19
(supply side)
Fig. 2-1-5a
B1 Capstan motor
Belt (capstan)
B2
B22 Belt
(loading motor)
B21
Worm gear
Control cam
B20
B19 Brake lever
B18 Cassette gear
B17 Link lever
B15 Rotary encoder
B16 B14
Rotary encoder guide
Fig. 2-1-5b
Published in Heiloo Holland
T6 A/C head
T5
Head base
Drum assembly
T18 T16 Idler arm assembly
Idler lever
T17 Pole base assembly (take-up side)
Mechanism assembly top side
Loading arm gear (supply side)
B3 Capstan brake assembly B5
Loading arm gear (take-up side)
B4
B13 Direct gear
B10 Take-up head
Change lever assembly B12 Clutch unit
Mechanism assembly bottom side
T7
Loading motor
T8
Guide pole guard
T9 Pinch roller arm
assembly
T10 Lid guide
T11 Press lever
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
B8 Control plate
Tension arm
B9
bearing
B11 Take-up lever
29/11/2016
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