JVC QL-F6 Service Manual

9. Troubleshooting Charts 9-( 1) Platter does not rotate
1. Turntable does not rotate.
Turntable does
not rotate when
start button is depressed.
Cooo,ct
Yes
R,p""
Yes
Replace the pilot
lamp.
Check the trans- former for
dis-
connected wires and damaged printed pattern.
Check X15 , 02.
Yes -+/ X17
is defective.
12 -
X16 is defective.
Fig. 24
Yes
Check all driving coils.
Check transistors
X1 - X12
, and
Hall
elements
HG1
, HG2.
Note: Don
t disconnect the motor
from electronic
circuits while troubleshooting as
transistors
in drive circuit may be damaged.
Yes
IC5 is defective.
Replace.
Yes
Is R70
discon-
nected or badly
soldered?
Yes
IC1 is defective.
Replace
Perform locking
adjustment or check the phase.
Yes
Check if C22
R68 are
open.
Observe the FG
output and IC4 performance to
trase the defect.
QL-
No. 2464

JVC QL-F6 Specifications

General

Brand	JVC
Model	QL-F6
Category	Turntable
Language	English