
MECHANISM TROUBLESHOOTING GUIDE
1. Deck Mechanism
4-24
A.
YES
Auto REW doesn't work.
B.
Is the supply to the END
sensor END sensor "H"?
“H”: more than 3.5V
“L”: less than 0.7V~1V
Is the voltage across IR LED
between 0.8~1.5V?
Is the present mode, F/R
Mode?
Check syscon circuit.
Is the mode SW assembled
correctly (refer to Pages 4-14.)
Replace LED.
Replace End sensor.
YES
No F/R modes.
YES
NO
Does the Capstan Motor rotate?
Is the normal voltage supplied
to the Capstan Motor Vcc1,
Vcc2.?
YES
NO
YES
YES
Does the T/Up, Supply Reel
rotate?
Is terminal voltage (Vctl) of
Capstan Motor supply side
more than 4V?
YES
Check Servo, Power Circuits.
NO
Check the syscon power.
Is the Vcc. voltage of End
sensor 5V?
NO
Check syscon circuit.
Replace the Capstan Motor.
YES
YES
NO
YES
Summary of Contents for DVP3350V/01
Page 17: ...2 8 MEMO ...
Page 45: ...3 37 3 38 5 TUNER CIRCUIT DIAGRAM ...
Page 51: ...3 49 3 50 IC301_LA71750EM IC501_MN101D10X IC801_TDA9605H IC751_MSP3417 3407 ...
Page 52: ...3 51 3 52 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP SIDE ...
Page 53: ...3 53 3 54 2 MAIN P C BOARD BOTTOM SIDE ...
Page 54: ...3 55 3 56 3 POWER P C BOARD ...
Page 55: ...3 57 3 58 4 KEY P C BOARD ...
Page 77: ...3 80 MEMO ...
Page 78: ...3 81 3 82 CIRCUIT DIAGRAMS 1 MPEG CIRCUIT DIAGRAM ...
Page 79: ...3 83 3 84 2 SERVO CIRCUIT DIAGRAM ...
Page 80: ...3 85 3 86 3 JACK CIRCUIT DIAGRAM ...
Page 113: ...4 32 MEMO ...
Page 119: ...5 6 MEMO ...
Page 121: ...5 9 5 10 MEMO MEMO ...