DVP-CX985V
(3-6) VENC Check(5-4) ARP to RAM Address Bus
Data write t read, and accord checkData write t other address read discord check
Error 52: Write/read data discordError 10: ARP Tt RAM address bus error
Error may occur due to defect of access with syscon.Caution: Address and data display in case of an error is
different from the display of other diagnosis (described
(3-7) NNNNNlater).
Check no support.Before starting the test, all addresses of RAM (IC303) are
cleared to 0x0000.
(3-8) EX RAM CheckFirst, 0xA55A is written to the address 0x00000, and the
Test Data write t read, and accord checkaddress data are read and checked from addresses 0x00001
Error 02: The external RAM used in the system control isto 0x80000 while shifting 1 bit each. Next, the data at that
checked.address is cleared, and it is written to the address 0x00001,
and read and checked in the same manner. This check is
4. Servorepeated up to the address 0x80000 while shifting the ad-
(4-2) Servo DSP Checkdress data by 1 bit each.
Data write t read, and accord checkIf data other than 0 is read at the addresses except written
Error 12: Read data discordaddress, an error is given because all addresses were al-
0x9249, 0x2942 and 0x4294 are written to the RAM ad-ready cleared to 0. In this check, the error display pattern is
dress 0x602 of the Servo DSP and then read for checking.different from that of other diagnosis; read data, written
address, and read address are displayed in this order. How-
(4-3) NNNNNever, the message uses same template, and accordingly ex-
Check no support.change Address and Data when reading. The following dis-
play, for example,
(4-4) RF Amp (SSI) W/R Check
Data write t read, and accord check### Syscon Diagnosis ###
Error 13: RF Amp register write, and read data discord
Implement 8-bit shift operation of the 0x01 to the read-
able/writable register of the RF Amp. If once write data do
5-4. ARP to RAM Address Bus
not accord with read data, it is NG.Error 10: ARP - RAM Address B
Address : 0000A55A
5. Data Supply SystemWrite Data : 00000000
(5-2) ARP Register CheckRead Data : 00080000
Data write t read, and accord checkPress NEXT Key to Continue
Error 08: ARP register write, and read data discordPress PREV key to Repeat
_
Data 0x00 to 0xFF is written sequentially to the ARP TMAX
register (address 0xC6) and then read for checking.
shows the data 0xA55A was read from address 0x00080000
(5-3) ARP to RAM Data Bus
Data write t read, and accord checkthough it was written to the address 0x00000000. This im-
plies that these addresses are in the form of shadow. Also,
Error 09: ARP Tt RAM data bus errorif the read data is not 0xA55A, another error will be present.
Data 0x0001 to 0x8000 where one bit each is set to 1 are
written to the address 0 of RAM (IC303) connected to the
(5-5) ARP RAM Check
ARP (IC301) through the bus, then they are read andData write t read, and accord check
checked. In case of discord, written bit pattern and read
data are displayed. If data where multiple bits are 1 areError 11: ARP RAM read data discord
The program code data stored in ROM are copied to all
read, the bits concerned may touch each other. Further, if
data where certain bit is always 1 or 0 regardless of writtenareas of RAM (IC303) connected to the ARP (IC301)
data, the line could be disconnected or shorted.through the bus, then they are read and checked if they ac-
cord. If the detail check was selected initially, the data are
written to all areas and read, then the same test is conducted
once again with the data where all bits are inverted between
1 and 0. If discord is detected, faulty address, written data,
and read data are displayed following the error code 11,
and the test is suspended.
25 |
ACEC
