13 Procedure for Checking Operation of Individual Parts of
Deck Mechanism Unit
13.1. Operation Check with Cassette Tape
1. Pull up the EJECT lever using a rubber band. (Fig. 6)
2. Supply DC5V to MOTOR. (
→
MOTOR rotates.) (Fig. 5)
3. Insert a cassette tape to the unit.
4. Supply DC9V to the plunger, and turn the power ON and OFF. (
→
Power +PL, -PL) (Fig. 5)
a. FWD PLAY: Supply the plunger power in a flash. (ON: approx. 5msec)
b. FWD FF: Supply the plunger power in a flash at PLAY mode. (ON: approx. 5msec)
c. STOP: Supply the plunger power in a flash at FWD FF mode. (ON: approx. 5msec)
d. REV PLAY: Supply the plunger power in a normal timing at STOP mode. (ON: approx. 200msec)
e. REV REW: Supply the plunger power in a flash at REV PLAY mode. (ON: approx. 50msec)
f.
STOP: Supply the plunger power in a flash at FF mode. (ON: approx. 50msec)
Repeat the operation (
→
FWD PLAY)
(Note) Other operation may start if a timing of supplying the plunger power is missed.
13.1.1. Connection Status between Mechanism and Power Supply (Motor, Plunger)
13.1.2. Operative Parts of Deck Mechanism Unit (EJECT lever fitted with rubber band,
Plunger/Rib operation)
Fig. 6
13.2. Operation Check without Cassette Tape
1. Pull up the EJECT lever using a rubber band. (Fig. 6)
2. Supply DC5V to MOTOR. (
→
MOTOR rotates.)
3. Lift up the mechanism unit’s plunger/rib with the tip of a negative screwdriver, and operate the unit in the same timing as
supplying the power. (Fig. 7)
46
SA-AK450PL
Summary of Contents for SA-AK450PL
Page 8: ...8 SA AK450PL ...
Page 11: ...6 Accessories Remote Control FM Antenna Wire AC Cord AM Loop Antenna 11 SA AK450PL ...
Page 12: ...7 Operating Instructions Procedures 7 1 Main Unit Key Buttons Operations 12 SA AK450PL ...
Page 13: ...7 2 Remote Control Key Buttons Operations 13 SA AK450PL ...
Page 26: ...10 3 Main Parts Location 26 SA AK450PL ...
Page 38: ...10 17 1 Replacement of Pinch Roller and Head Block 38 SA AK450PL ...
Page 39: ...10 17 2 Replacement of Motor Capstan Belt A Capstan Belt B and Winding Belt 39 SA AK450PL ...
Page 45: ...12 4 Checking and Repairing of Power P C B 45 SA AK450PL ...
Page 47: ...47 SA AK450PL ...
Page 51: ...15 3 Main P C B 15 4 Panel P C B 51 SA AK450PL ...
Page 52: ...15 5 Power P C B Transformer P C B 52 SA AK450PL ...
Page 53: ...15 6 Waveform Chart 53 SA AK450PL ...
Page 62: ...SA AK450PL 62 ...
Page 64: ...64 SA AK450PL ...
Page 84: ...SA AK450PL 84 ...
Page 89: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK450PL 89 ...
Page 90: ...SA AK450PL 90 ...
Page 91: ...23 2 Deck Mechanism Parts Location RAA4403 S SA AK450PL 91 ...
Page 92: ...23 3 Packaging SA AK450PL 92 ...