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)
48
SA-AK450P / SA-AK450PC
Summary of Contents for SA-AK450P
Page 8: ...8 SA AK450P SA AK450PC ...
Page 13: ...13 SA AK450P SA AK450PC ...
Page 16: ...With reference to page 13 of the operating instruction manual 16 SA AK450P SA AK450PC ...
Page 18: ...With reference to page 17 of the operating instruction manual 18 SA AK450P SA AK450PC ...
Page 29: ...10 3 Main Parts Location 29 SA AK450P SA AK450PC ...
Page 40: ...10 16 1 Replacement of Pinch Roller and Head Block 40 SA AK450P SA AK450PC ...
Page 47: ...12 4 Checking and Repairing of Power P C B 47 SA AK450P SA AK450PC ...
Page 49: ...Fig 7 49 SA AK450P SA AK450PC ...
Page 53: ...15 3 Main P C B 15 4 Panel P C B 53 SA AK450P SA AK450PC ...
Page 54: ...15 5 Power P C B Transformer P C B 15 6 XM P C B 54 SA AK450P SA AK450PC ...
Page 55: ...15 7 Waveform Chart 55 SA AK450P SA AK450PC ...
Page 64: ...SA AK450P SA AK450PC 64 ...
Page 66: ...66 SA AK450P SA AK450PC ...
Page 86: ...SA AK450P SA AK450PC 86 ...
Page 91: ...23 Exploded Views 23 1 Cabinet Parts Location SA AK450P SA AK450PC 91 ...
Page 92: ...SA AK450P SA AK450PC 92 ...
Page 93: ...23 2 Deck Mechanism Parts Locations RAA4403 S SA AK450P SA AK450PC 93 ...