Cassette Deck - Samsung MM-26 Service Manual

Troubleshooting

6-2 Cassette Deck

Block
TAPE IC JIC1
(KA22291)
AMPS IC JIC2
(LA2010)
BIAS OSC
6-4
Main Function
Convert of P/B & R/P SIGNAL &
DECK OUTPUT OF IC
AMPS
Oscillate RECORD BIAS (85KHZ)
Check Point
Check for voltage at Pin5
1 P/B Deck : H
2 R/P Deck : L
Check for pin2 of UIC2 when deck
operate
Check for voltage at pin 6
When between songs : High (Normal)
When playing song : Low (Normal)
Osc Frequency : 85KHz
When inoperative : JQ5,JQ6 check
Samsung Electronics