JVC KD-AVX2J - Page 34

1-34 (No.MA254)
5.3 Spindle section
5.4 Tracking section
Is the disk rotated?
NO
Is the voltage output at
pins 20,22,24 of IC251?
Check the connection between
the CN201 and card wire.
YES
NO
Is the voltage input at pin
17 of IC251?
YES
NO
Is the voltage output at
pin 90 of IC301?
Check the connections
between IC251 and
IC301.
YES
NO
Is the power supply
present at pin 14
of IC251?
YES
Check IC251.
NO
YES
Check IC301.
NO
Check the connections
between the card wire
and CN401,CN965.
Check the voltage output
of 5V SW regulator.
Is the power supply
present at power supply
pins of IC301?
Is the voltage output at
pins 11,12 of IC201?
Check the pickup and
its connections.
YES
NO
Is the voltage input at
pin 6 of IC201?
NO
Is the voltage output at
pin 144 of IC301?
YES
Check the connections
between IC251 and
IC301.
YES
Is the power supply
present at pin 14
of IC251?
YES
Check IC251.
NO
Check the voltage output
of 5V SW regulator.
NO
YES
Check IC301.
NO
Check the connections
between the card wire
and CN401,CN965.
Is the power supply
present at power supply
pins of IC301?