Service modes, repair tips and faultfinding trees
GB 32
CDR 3rd gen.
5.
Figure 5-22
APPL
Y A
UDIO SIGNAL(1kHz 0dB)
ON CONNECT
OR 1400 AND R
O
T
A
T
E
THE EASY JOG/ENTER KEY UNTIL
THE DISPLA
Y SHO
WS -12 DB
.
SELECT ANALOG RECORDING
INPUT BY PRESSING SOURCE
CHECK A
UDIO SIGNAL
ON
TESTPOINTS A1 AND A2
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
CHECK FLEX - CONNECT
OR
BETWEEN I/O - BO
ARD AND
MAINBO
ARD
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(DIA
GRAM 6)
ANALOG A
UDIO P
A
TH
DURING RECORDING
CHECK A
UDIO SIGNAL
ON
TESTPOINTS A3 AND A4
(DIA
GRAM 6)
CHECK PO
WER SUPPL
Y IC 7401
CHECK IC 7401
CHECK A
UDIO SIGNAL
ON
TESTPOINTS A5 AND A6
(DIA
GRAM 6)
CHECK PO
WER SUPPL
Y IC 7801
CHECK I2C - SIGNAL OF IC 7801
CHECK IC 7801
CHECK A
UDIO SIGNAL
ON
TESTPOINTS A7 AND A8
(DIA
GRAM 6)
CHECK PO
WER SUPPL
Y IC 7405
CHECK IC 7405
CHECK I2S - SIGNALS
ON
TESTPOINTS A9, A10 AND A11
(DIA
GRAM 9)
CHECK PO
WER SUPPL
Y IC 7406
CHECK SAFETY RESIST
ORS
R3411 AND R3439
CHECK
Vref = 1,65V ON PIN 28
CHECK I2S - SIGNALS
ON
TESTPOINTS A13, A14 AND A15
(DIGRAM 9 AND 5)
CHECK PO
WER SUPPL
Y IC 7701
CHECK IC 7701
CHECK PO
WER SUPPL
Y IC 7300
CHECK I2C - SIGNAL OF IC 7300
CHECK IC 7300
CHECK EFMD
A
T
A
AND
EFMCLOCK ON
TESTPOINTS
A17 AND A18
(DIA
GRAM1)
CHECK A
CTIVITY
ON TESTPOINT
A27
(DIA
GRAM1)
CHECK PO
WER SUPPL
Y IC 7008
CHECK I2C - SIGNAL OF IC 7008
CHECK IC 7008
ANALOG A
UDIO P
A
T
H
DURING RECORDING
OK
0V
TRACK 15 1KHz 0dB
AUDIO SIGNALS DISC
2ms/DIV
5.44Vpp
A1
A2
0V
2ms/DIV
2.68Vpp
A3
A4
0V
2ms/DIV
739mVpp
A5
A6
0V
2ms/DIV
2.44Vpp
A7
A8
MSB
MSB
LSB
0.5uS/DIV
32
WCLK
BCLK
DATA1
RIGHT CHANNEL
44,1KHz
2,1168MHz
LEFT CHANNEL
A10
A9
A11
A12
A14
A15
A17
A18
CL06532018_024.eps
290200
Содержание CDR-775
Страница 5: ...Safety and Maintenance instructions warnings and notes GB 5 CDR 3rd gen 2 CL 96532086_023 eps 080999 ...
Страница 10: ...Mechanical instructions GB 10 CDR 3rd gen 4 Clamper Figure 4 7 CL06532018_007 eps 210200 ...
Страница 35: ...Circuit description GB 77 CDR 3rd gen 9 9 2 List of Abbreviations CL06532018_026 eps 290200 ...
Страница 36: ...Circuit description GB 78 CDR 3rd gen 9 CL06532018_027 eps 290200 ...
Страница 37: ...Circuit description GB 79 CDR 3rd gen 9 CL06532018_028 eps 290200 ...
Страница 38: ...Circuit description GB 80 CDR 3rd gen 9 CL06532018_029 eps 290200 ...
Страница 39: ...Circuit description GB 81 CDR 3rd gen 9 CL06532018_030 eps 290200 ...
Страница 40: ...Circuit description GB 82 CDR 3rd gen 9 CL06532018_031 eps 290200 ...
Страница 41: ...Circuit description GB 83 CDR 3rd gen 9 CL06532018_032 eps 290200 ...
Страница 42: ...Circuit description GB 84 CDR 3rd gen 9 CL06532018_033 eps 290200 ...
Страница 68: ...Electrical diagrams and PWB s GB 44 CDR 3rd gen 7 CDR MAIN BOARD TOP VIEW CL06532018_044 eps 290200 ...
Страница 69: ...Electrical diagrams and PWB s GB 45 CDR 3rd gen 7 CDR MAIN BOARD BOTTOM VIEW CL06532018_045 eps 030300 ...
Страница 80: ...Electrical diagrams and PWB s GB 56 CDR 3rd gen 7 CDR MAIN BOARD 7 TOP VIEW CL06532018_056 eps 290200 ...
Страница 81: ...Electrical diagrams and PWB s GB 57 CDR 3rd gen 7 CDR MAIN BOARD 7 BOTTOM VIEW CL06532018_057 eps 290200 ...
Страница 92: ...Electrical diagrams and PWB s GB 68 CDR 3rd gen 7 CDR MAIN BOARD 8 TOP VIEW CL06532018_069 eps 010300 ...
Страница 93: ...Electrical diagrams and PWB s GB 69 CDR 3rd gen 7 CDR MAIN BOARD 8 BOTTOM VIEW CL06532018_070 eps 010300 ...
Страница 98: ...Electrical diagrams and PWB s GB 74 CDR 3rd gen 7 CDR MAINBOARD SURVEY OF TESTPOINTS CL06532018_086 eps 010300 ...