Sony DNW-A75 Maintenance Manual page 130

4-2. TAPE Maintenance Mode (M0)
4-2-5. AUDIO/VIDEO CHECK Mode (C2)
Screen display samples
In case of normal
AUDIO/VIDEO CHECK MODE
C24:DPR-118 DIAG INFO
DPR-118 DIAG. OK!
INITIALIZE CHECK..
1.F-CONT INIT. OK
2.DIGI FIL INIT. OK
3.SX ENC INIT. OK
4.SX MEP INIT. OK
5.ECC ENC INIT. OK
6.OUTER INIT. OK
7.SX DEC INIT. OK
SOMETHING CHECK..
11.F-CONT CHECK. OK
12.DIGI FIL CHECK. OK
13.SX ENC CHECK. OK
14.SX MEP CHECK. OK
15.ECC ENC CHECK. OK
16.OUTER CHECK. OK
17.SX DEC CHECK. OK
In case of abnormal
AUDIO/VIDEO CHECK MODE
C24:DPR-118 DIAG INFO
DPR-118 DIAG.ERROR!
INITIALIZE CHECK..
1.F-CONT INIT. OK
2.DIGI FIL INIT. OK
3.SX ENC INIT. NG
4.SX MEP INIT. OK
5.ECC ENC INIT. OK
6.OUTER INIT. OK
7.SX DEC INIT. OK
SOMETHING CHECK..
11.F-CONT CHECK. NG
PARITY ERR B-IN
PARITY ERR A-IN
12.DIGI FIL CHECK. OK
13.SX ENC CHECK. NG
PARITY ERR MEP
14.SX MEP CHECK. OK
15.ECC ENC CHECK. OK
16.OUTER CHECK. OK
17.SX DEC CHECK. OK
Detail description of abnormal case
INITIALIZE CHECK:
The possible cause below is judged as an NG item.
. The target IC is defective.
. The foiled pattern on the board connecting target IC and
SY2 CPU is defective.
. The component part between target IC and SY2 CPU is
defective.
INITIALIZE CHECK Target
Screen display IC
1. F-CONT INIT. NG IC251
2. DIGI FIL INIT. NG IC209
3. SX ENC INIT. NG IC200
4. SX MEP INIT. NG IC300
5. ECC ENC INIT. NG IC402
6. OUTER INIT. NG IC600
7. SX DEC INIT. NG IC800
4-40
Displays NG for failure item.
In case of NG,
the detail data is displayed.
Target IC's pin number
connected to SY2 CPU
Pins 109 to 116, 118 to 121
Pins 113 to 116, 118 to 125
Pins 128, 133 to 135, 141 to
144, 146 to 149
Pins 128, 133, 134, 141 to
144, 146 to 149
Pins 45, 49 to 59
Pins 9 to 16, 20 to 23
Pins 44 to 7, 53 to 59, 62
SOMETHING CHECK:
The possible cause below is judged as an ERR item.
. The target IC is defective.
. The foiled pattern on the board connecting target IC and
its connected IC is defective.
. The component part between target IC and its connected
IC is defective.
. Connected IC is defective.
SOMETHING CHECK
Screen display
11. F-CONT CHECK. NG
PARITY ERR B-IN
PARITY ERR A-IN
12. DIGI FIL CHECK. NG
PARITY ERR A-IN
13. SX ENC CHECK. NG
PARITY ERR MEP
PARITY ERR VIDEO
CLOCK ERR 13.5M
CLOCK ERR 27M
CLOCK ERR 54M
CLOCK ERR 81M
SDRAM ERR ALL
n
Displays "ALL" wherever an abnormal point occurs.
14. SX MEP CHECK. NG
SDRAM ERR ALL
n
Displays "ALL" wherever an abnormal point occurs.
INPUT ERR PARITY
INPUT ERR SYNC
CLOCK ERR 81M
CLOCK ERR 54M
CLOCK ERR 27M
CLOCK ERR 13.5M
PLL ERR 81M
PLL ERR 54M
PLL ERR 27M
Target IC (Its pin number)
[Ref. No. of Connected IC]
IC251 (Pins 94 to 101, 103 to 106)
IC251 (Pins 74 to 80, 82 to 88),
[IC800]
IC209 (Pins 3 to 8, 10 to 17), [IC251]
IC200 (Pins 165, 168 to 173, 175 to
179, 182 to 186, 189 to 192, 195 to
199), [IC300]
IC200 (Pins 88, 89, 92 to 101, 105,
106), [IC209]
IC200
(Pins 110 to 113, 116, 121 to 127)
IC200, [IC205 to IC208]
IC300, [IC205 to IC208]
IC300 (Pins 238 to 241, 244 to 247,
250, 251), [IC200]
IC300 (Pin 238), [IC200]
IC300 (Pins 107, 111 to 113, 116,
121 to 127)
DNW-A75/A75P