Integra DTR-7.8 Service Manual page 215

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3 7 63 1515 0
DEBUG MODE-3
Trouble Shooting by Debug Mode (Continued)
(Continued)
Digit no
Symptom on display
on FL
This identifies IC which
-
19 20
outputs error
Continue to display "1"
10
Continue to display "2"
Continue to display "3" to "7"
Continue to display "8" to "F"
-
15 20 Continue to display "03"
Continue to display "05"
Continue to display "08"
TE
L 13942296513
Continue to display "09" to
"0C"
Continue to display "17"
Display "21", then return and
signal format indicator is
flashing
Continue to display "22" to
"24"
Continue to display "30" to
"33"
Continue to display "26" to
"2F"
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Some IC outputs error to MPU.
Interface between DSP and MPU
is no good.
Connection from DIR to DSP is no good. Related devices from DIR to DSP.
Interface between DSP and MPU
is no good.
DSP Sequence is no good.
Communication between DSP and MPU
is no good.
Writing from MPU to DSP is no good.
DSP program is no good.
DSP program is no good.
Powered off during DSP program update.
DSP program is no good.
DSP program is no good or
Audio clock to DSP is no good.
DSP program is no good or
Audio clock to DSP is no good.
DSP setting is failured.
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2 9
8
Cause
Audio Selector, DSP, DIR & related devices.
Related devices from MPU to DSP.
Related devices from MPU to DSP.
Check
Check connection between DSP and MPU.
Power supply pin, reset port and clock input of DSP.
Flash ROM program may be no good.
DSP or MPU is broken.
Flash ROM program is no good, upgrade.
DSPSDO pin of MPU.
Flash ROM or SDRAM is no good, replace.
DSP or MPU is broken, replace.
Flash ROM program is no good, upgrade.
Flash ROM or SDRAM is broken, replace.
Q Q
Check connection between DSP and Flash ROM.
3 6 7 1 3 1 5
Flash ROM program is no good, upgrade.
Flash ROM or SDRAM is broken, replace.
Check connection between DSP and Flash ROM.
Press STANDBY/ON button while pushing.
VCR/DVR button when the unit is powered on.
Flash ROM program is no good, upgrade.
Flash ROM or SDRAM is broken, replace.
Check connection between DSP and Flash ROM.
Clock freq. to DSP.
Flash ROM program is no good, upgrade.
Flash ROM or SDRAM is broken, replace.
Check connection between DSP and Flash ROM.
Clock freq. to DSP or Audio clock to DSP.
Flash ROM program is no good, upgrade.
Flash ROM or SDRAM is broken, replace.
Check connection between DSP and Flash ROM.
Flash ROM program is no good, upgrade.
Flash ROM or SDRAM is broken, replace.
Check connection between DSP and Flash ROM.
co
.
9 4 2 8
Check
- items.
15 20
0 5 8 2 9 9 4 2 8
m
DTR-7.8
9 9
9 9