Denon DVM-2815 Service Manual page 22

Dvd audio-video auto changer
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FLOW CHART NO.24
Audio is not outputted. (JK7101)
Set the disc (with 5.1ch Audio) on the disc tray, and playback.
Are the PCM data signals outputted to each pin
of CN7102 on DVD Audio CBA.
CN7102 7PIN PCM-DATA0
CN7102 5PIN PCM-DATA1
CN7102 3PIN PCM-DATA2
Are the PCM data signals inputted to each pin
of IC7201, IC7202 and IC7203.
IC7201 2PIN PCM-DATA0
IC7202 2PIN PCM-DATA1
IC7203 2PIN PCM-DATA2
Are the analog audio signals outputted to each pin
of IC7201, IC7202 and IC7203.
IC7201 7, 8PIN FRONT(L/R)
IC7202 7, 8PIN SORROUND(L/R)
IC7203 7, 8PIN CENTER/SUBWOOFER
Are the analog audio signals inputted to each pin
of IC7301, IC7401 and IC7501.
IC7301 2, 6PIN FRONT(L/R)
IC7401 2, 6PIN SORROUND(L/R)
IC7501 2, 6PIN CENTER/SUBWOOFER
Are the analog audio signals outputted to each pin
of IC7301, IC7401 and IC7501.
IC7301 1,7PIN FRONT(L/R)
IC7401 1,7PIN SORROUND(L/R)
IC7501 1,7PIN CENTER/SUBWOOFER
Do the mute signals of each line (as shown below)
become to "H" level?
FRONT(L) → CN7102 18PIN → IC7201 11PIN
FRONT(R) → CN7102 18PIN → IC7201 12PIN
SORROUND(L) → CN7102 19PIN → IC7202 12PIN
SORROUND(R) → CN7102 19PIN → IC7202 11PIN
CENTER → CN7102 19PIN → IC7203 12PIN
SUBWOOFER → CN7102 19PIN → IC7203 11PIN
Is the analog audio signal of each line outputted to
each terminal of JK7101 (as shown below) ?
IC7301 7PIN → JK7101 FRONT(L)
IC7301 1PIN → JK7101 FRONT(R)
IC7401 7PIN → JK7101 SORROUND(L)
IC7401 1PIN → JK7101 SORROUND(R)
IC7501 1PIN → JK7101 CENTER
IC7501 7PIN → JK7101 SUBWOOFER
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
No
No
Yes
No
Replace the DVD Main CBA or DVD Mecha.
Check each line between each pin of CN7102 and each
pin of IC7201,IC7202,IC7203 and service it if defective.
7PIN → IC7201 2PIN PCM-DATA0
CN7102
5PIN → IC7202 2PIN PCM-DATA1
CN7102
3PIN → IC7203 2PIN PCM-DATA2
CN7102
Is +5V voltage applied to the pin(6) of IC7201, IC7202
and IC7203? And is +3.3V voltage applied to the pin(5)
of IC7201, IC7202 and IC7203?
Yes
Replace ICs (IC7201,
Check P-ON+3.3V or AUDIO+5V
IC7202 or IC7203).
line and service it if defective.
Check each line between each pin of IC7201 - IC7203
and each pin of IC7301,IC7401 and IC7501 and service
it if defective.
IC7201 7,8PIN → IC7301 2,6PIN FRONT(L/R)
IC7202 7,8PIN → IC7401 2,6PIN SORROUND(L/R)
IC7203 7,8PIN → IC7501 2,6PIN CENTER/SUBWOOFER
Replace ICs (IC7301, IC7401 or IC7501).
Replace the DVD Main CBA Unit or IC7201.
Replace the DVD Main CBA Unit or IC7202.
Replace the DVD Main CBA Unit or IC7203.
Check each line and service it if defective.
22
DVM-2815
No
22

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