JVC KV-V8 service manual Change lever assembly, rotary encoder, Take up head, tension arm lever

Page 17

2.2.13Change lever assembly, rotary encoder

(1)Slide the change lever assembly in the direction of the arrow and remove.

(2)While pushing the claws on both sides in the disengag- ing directions, take out the rotary encoder.

(3)When attaching the rotary encoder, position it so that the alignment markings face each other as shown in Fig. 2- 2-13a, then attach the rotary encoder.

Notes:

Before removing the change lever assembly, it is re- quired to remove the belt (Fig. 2-2-12a).

Take care of the cassette gear, which is disengaged at the same time as the change lever assembly is re- moved.

Position

Rotary encoder

 

Claw

Claw

Align the

 

triangle marks

 

Cassette gear

Change lever assembly

Fig.2-2-13a

2.2.14Tension arm assembly, tension band assembly, reel disk assembly (supply), sub brake assembly (supply), clutch unit (supply), take up lever

(1)Disengage the spring (a) of the sub brake assembly (sup- ply) from the hook.

(2)Disengage the spring (c) from the hook.

(3)Take out the slit washer, and remove the tension arm assembly. Also remove the tension band assembly by disengaging the claw.

(4)Take out the slit washer, and remove the reel disk as- sembly (supply).

(5)While pushing the claw in the disengaging direction, re- move the sub brake assembly (supply).

(6)Remove the clutch unit (supply).

(7)Remove the take up lever assembly.

Notes:

When attaching the tension arm assembly, be sure to adjust the phase of the tension arm lever.

After removing the clutch unit (supply), it is possible to remove the slit disk (supply) and main brake assem- bly (supply).

Tension arm assembly

 

 

Tension arm lever

 

Note

 

 

 

 

Take up lever

Clutch unit (supply)

Slit disk (supply)

 

Tension arm assembly

Hook

 

 

 

 

 

 

(b)

Slit washer

 

(c)

 

Hook

 

 

 

(c)

 

(a)

 

Tension band

 

 

 

assembly

Main brake

Reel disk assembly

 

 

assembly

(supply)

 

 

(supply)

 

Claw

 

(a)

 

 

 

Claw

Slit washer

 

 

 

 

 

Sub brake assembly (supply)

 

 

Fig.2-2-14a

 

2.2.15 Take up head, tension arm lever

(1) Remove the take up head and tension arm lever.

Tension arm lever

Take up head

Alignment holes

Fig.2-2-15a

2-7

Image 17 Contents
KV-V8 Specificatios KV-V8J How to read the disassembly and assembly Disassembly flow chartAdjustment information for installation Disassembly/assembly methodFig. D1 Fig. D4 How to set the Service position Service positionMechanism service mode How to set the Mechanism service modeFDP display model FDP display FDP Content Cause EMG detail information Mechanism sensor information Common table of MN*, HD* and M3 Jigs and tools required for adjustment Before starting repair and adjustment PrecautionsChecking for proper mechanical operations Manually removing the cassette tape5a Mechanism assembly top side Lubrication CleaningTape DriveHow to set the Mechanism assembling mode Replacement of major parts Before starting disassemblingPinch roller arm assembly 4 A/C head How to removeReel disk assembly take up Lever assembly, sub deck assembly, capstan motorLoading motor Control bracketSlide plate Sub brake assembly take up, control camControl plate Remove the take up head and tension arm lever Change lever assembly, rotary encoderTake up head, tension arm lever Stator assembly Rotor assembly How to removeUpper drum assembly Guide rail19a Attach the surrounding parts of the guide rail Rotary encoder, change lever assembly, control camLoading arm assemblies supply, take up Mechanism timing chart FM waveform linearity Compatibility adjustment NotesRepeat steps 1 to 10 by using the alignment tape A2 Play back the alignment tape a 3 A/C head phase X-valueHeight and tilt of the A/C head Tension pole position Standard tracking presetRequired adjustment tools PrecautionSwitch settings and standard precautions Required test equipmentsSlow tracking preset No.49625 KV-V8