Samsung DV-7620KV Service Manual page 11

5-5 Disc change Does Not Work
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CAUSION : You must connect a wire from Tray to unit. If not , unit will be troubled.
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Check if signal at SW1,
(PIN5:LOW,PIN6:HIGH)
Check for waveform at
Check flate cable and
Samsung Electronics
SW2 of DCW1
(LOW OR HIGH)
YES
Check for signal
pin5,6 of DRIC1
YES
pin2,10 of DRIC1
YES
CD Tray Motor
NO
Check CD Tray swich
Check pattern from
NO
MIC1 to DRIC1 and
MICOM
NO
Check DRIC1
5 - 5