Page text (OCR transcript)
4. DEFECTIVE AUTO SEARCH MECHANISM
Manual search possible but automatic search mechanism does not function or does not stop at all receivable stations.
Possible causes:
• Poor search sensitivity (SENS button)
• Defective radio
TEST
Does needle move when search button is pushed? → Yes → Is desired broadcast receivable when button is at "DISTANT" position? → Yes → OK
↓ No
Replace radio
↓ No
Check if desired broadcast can actually be received in the area. If receivable, replace radio.
Antenna Motor Control Relay
INSPECTION OF RELAY
1. INSPECT RELAY OPERATION (ANTENNA UP)
(a) Connect the voltmeter positive (+) lead to terminal 1 and the negative (−) lead to terminal 4.
(b) Connect the positive (+) lead from the battery to terminals 6, 7 and 8 and the negative (−) lead to terminal 3.
(c) Check that there is battery voltage.
HINT: Measure the voltage within 7 seconds after connecting the positive (+) lead from the battery to terminal 8.
2. INSPECT RELAY OPERATION (ANTENNA DOWN)
(a) Connect the voltmeter positive (+) lead to terminal 4 and the negative (−) lead to terminal 1.
(b) Connect the positive (+) lead from the battery to terminals 6 and 7 and the negative (−) lead to terminal 2.
(c) Disconnect the positive (+) lead from the battery to terminal 6.
(d) Check that there is battery voltage.
HINT: Measure the voltage within 7 seconds after disconnecting the positive (+) lead from the battery to terminal 6.
3. INSPECT RELAY OPERATION (ANTENNA STOP)
(a) Connect the voltmeter positive (+) lead to terminal 1 and the negative (−) lead to terminal 4.
(b) Connect the positive (+) lead from the battery to terminals 7, 9 and the negative (−) lead to terminal 2.
(c) Check that there is no battery voltage.
If operation is not as specified, replace the relay.
