JVC UX-F70MD Service Manual page 28

UX-F70MD/UX-F72MD
Removing the Head Amplifier & Mechanism
Control P.C. Board (Refer to Figs. 4 and 5.)
1. Disconnect the flexible wire from the connector
CN31 on the head amplifier & mechanism control
P.C. board mounted on the back of the cassette
mechanism assembly.
2. Remove the three screws B fastening the head
amplifier & mechanism control P.C. board.
3. Disconnect the connector CN32 of the head
amplifier & mechanism control P.C. board from the
connector CN1 on the reel pulse P.C. board.
Note: Remove the 4-pin parallel wire soldered to the
main motor depending on the situation.
Removing the Main Motor Assembly (Refer
to Figs. 4 to 7.)
The main motor assembly can be removed without
removal of the head amplifier & mechanism control
P.C. board.
1. Remove the two screws C fastening the main motor
assembly.
2. Lifting the main motor assembly slightly upwards,
disengage the capstan belt from the motor pulley.
Note: Be careful not to soil the capstan belt with grease
or the like. When reinstalling the main motor
assembly, refer to Fig. 6 and Fig. 7 for engaging
the capstan belt.
1-28
Head amp. & mechanism
control P.C. board
B B
B
Flexible P.C. board 4-pin parallel wire
Fig. 4
Main motor assembly
Capstan belt
Fig. 5
Capstan belt
Fig. 6
Main motor assembly
Flywheel
Capstan belt
Fig. 7
Belt
Main motor
assembly
C
C
Main motor assembly
Motor pulley
Main motor assembly
Motor pulley
Motor pulley