Parts Available

Symptoms and Repair Tips

Basic VCR Notes

Removing Cassettes That Won't Eject

Deck Layout and Parts Locations

Parts available

ITEM	PART NUMBER	PRICE	PICTURE
Belt Kit -2 belts	BK-651	1.58
Belt (6.5" IC)	Q65	0.89
Belt (10.0" IC)	B100	0.99
Pinch Roller	PR-1	3.99
Idler arm	IA-22	2.99
Idler tire	T-5611	0.69
Capstan Bearing Block -includes 2 bearings	BB-1	6.75
Tension Band	TPA-2	4.35
End Sensor Takeup or Supply	PT-5	1.90

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Symptoms and Repair Tips

Symptoms: idler tire
1.) shuts off after pressing PLAY.
2.) may eat tapes.
3.) tape is comming off supply reel OK but a tape loop is forming after the capstan and not getting put on takeup reel.
4.) takeup reel may not be moving at all or moving erratically.
5.) no REWIND or unreliable REWIND.
6.) may eat tapes after pressing STOP. When going from PLAY to STOP mode, VCR may be unable to put tape back into the cassette.
7.) may play entire cassette, but if you press PAUSE or STOP, it may shut off when you try to go back to PLAY mode.
8.) if you have a dummie cartridge, put the VCR in PLAY mode and check the traction between the idler tire and takeup reel table. You may find that the idler slips against the takeup reel table (grab the takeup reel table with your hand).
The Cure - replace idler tire. It may be easier if the cassette carriage is removed first. The most difficult part of the job is removing the split washer above the idler assembly without loosing it. Diffuculty rating 3 -easy.

Symptoms: worn capstan bearings
1.) VCR may be playing fine and then suddenly the tape speed slows and eventually shuts off (noise bars are traveling through the picture vertically when this is occurring). The audio slows and may waver.
2.) The picture may also suddenly freeze (as if someone pressed the pause button), and then shut off.
3.) Press play and the VCR will go again, but for a much shorter time and stop again.
4.) The problem always appears on the SP speed and almost never on the EP speed.
5.) bearing may emit a squeaking noise.
6.) put a drop of oil on the bearing and run the VCR for a few minutes. If a substance that looks like black pepper comes up out of the bearing, it's definately defective.
7.) sound may waver
The Cure - replace bearings. Requires an inexpensive bearing tool. It might work for a few months with a drop of oil on the bearings. Difficulty rating 6 - moderate.

Symptom: intermittent record. Even if you press PLAY and RECORD together real hard, it sometimes goes into PLAY instead of RECORD mode. Record timer may not always work. The Cure - clean or replace record safety switch; it checks for the safety tab on cassette backs. Difficulty rating 4 - moderate.

Symptom: does not accept tape. Tape carriage is not working. Side plate next to cassette load motor may be slightly melted. 2.2 ohm resistor on bottom side of circuit board is visually burned. Cause of problem is the mode switch. The Cure - replace load motor, carriage side plate, mode switch and 2.2 ohm resistor. Sometimes driver IC BA6238A also gets wiped out. Requires soldering and some electronics knowledge to identify parts. Difficulty rating 9 - difficult.

Symptoms: power supply module
1.) VCR may be totally dead.
2.) florescent display on front panel may blink or be totally out.
3.) if unplugged for a while, it may take 15 to 30 minutes for florescent display to illuminate after plugging AC cord back in.
4.) voltage line that feeds the capstan motor may be contaminated with AC voltage. In such case, audio wavers or audio quality may be poor; may also have speed locking problems. Because of the AC voltage component, the capstan is speeding up and slowing down many times a second.
5.) if you have a voltmeter (optional), measure the voltage on 5 volt line. It is easy to identify because there is only one connection plug between the power supply module and the main chassis; two adjacent pins in this plug are the 5 volt lines and they are the only two adjacent pins in the 5 volt ballpark. They should measure 5.1 volts. When this defect occurs they will measure between 3.5 and 4.9 volts. The lower this voltage, the more problems your VCR has. Be careful not to short any pins together with the voltage probe (it could damage the board further). WHEN PLUGGED IN, THERE ARE DANGEROUS VOLTAGES INSIDE THIS MODULE! AS LONG AS YOU STAY OUTSIDE THE MODULE CAGE, YOU ARE SAFE.
The Cure - remove power supply module and send in to our rebuild shop. The most difficult part of the job is unsoldering one wire bundle that attaches to the VCR chassis.Difficulty rating 3 - easy.

Basic VCR Notes

This VCR uses one idler tire for all transport modes. It has seperate motors for cassette load and the Moving Mechanism; the Moving Mechanism motor is on the bottom of the deck and the cassette load motor is on the top right end of the carriage. The mode switch is a linear type and is located on the bottom side of deck.

Removing top cover - most models mave two screws in the back and two more on the bottom; the bottom screws that need to be removed have an arrow next to them (some have three screws); Cover must slide up and back. When reinstalling, be sure slots in cover align with the pegs on both ends of VCR.

Tape End Sensers - no special precautions necessary with top cover off. Keep direct sunlight off VCR and don't use extremely bright light over bench to avoid false trips of tape end sensors.

Removing Cassettes That Won't Eject

Removing the cassette can be easily accomplished by a procedure called Hand Cycling. If there is tape outside the cassette, we need to put it back inside. Locate the Moving Mechanism Motor underneath the deck. Rotate the motor pulley while watching the roller guides. The roller guides may not start moving right away but as long as the master cam gear is rotating you will eventually get there. Keep on turning the pulley until the guides are fully retracted.

Now we can reel in the tape. Locate the reel drive pulley underneath the deck. With your finger, rotate it clockwise (as you look at it from the bottom) until all the tape is back inside the cassette. This works most of the time.

Finally, you can eject the cassette by hand cycling the carriage drive motor. It is located on the right end of the carriage. Different carriages were used. Keep rotating the shaft until the cassette completely out.

For further information see Cassette Won't Eject.