6-2
General Description of Checking Method
2. ROM, Model, Region
(2-2) ROM Revision
ROM revision number is displayed.
Error: Not detected.
The revision number defined in the source file of ROM
(IC103) is displayed with four digits.
(2-3) ROM Check Sum
Check sum is calculated.
Error: Not detected.
The data are added of ROM (IC103) and the result is dis-
played with 4-digit hexadecimal number. Error is not de-
tected. Compare the result with the specified value.
(2-4) Model Type
Model code is displayed.
Error: Not detected.
The model code is displayed with 2-digit hexadecimal num-
ber.
Model Type
DVP-S9000ES (US, Canadian)
0
0
DVP-S9000ES (UK)
0
3
DVP-S9000ES (AEP)
0
4
DVP-S9000ES (Hong Kong)
0
7
DVP-S9000ES (Australian)
0
A
DVP-S9000ES (Chinese)
0
6
(2-5) Region
Region code is displayed.
Error: Not detected.
The region code determined from the model code is dis-
played.
3. RAM, EEPROM, NFLASH, H2GA
(3-2) RAM write/read
Data writing to external RAM (IC105)
→
read matching
check
(3-3) EEPROM write/read (IC101)
Data write
→
read, and accord check
Error 31: EEPROM write/read discord
Before writing, the data are saved, then after checking, they
are written to restore the contents of EEPROM.
(3-4) NAND FLASH write/read
Data clear
→
write
→
read, and accord check
Error 32 : Clear error
33 : Write error
34 : Read data discord
A4: Faulty blocks exceed 10
The data clear, write, read, and check are executed to the
block 0 of Flash memory (IC202).
In case of a faulty block, its address is displayed.
(3-5) H2GA Register
Data write
→
read matching check
(3-6) H2GA Interrupt
Detection check for interruption from H2GA
(3-7) H2GA Reset
Nothing is done. *Executed only for the serial interface.
4. Servo, ARP
(4-2) Servo-DSP Driver Test
Test signal data
→
DSP Driver
Error: Not detected.
(4-3) Servo-DSP Register
Nothing is done. *Executed only for the serial interface.
(4-4) Servo-DSP Reset
Nothing is done. *Executed only for the serial interface.
Caution: Do not conduct this check with a mechanical deck con-
nected.
An access is made to the stream supply and servo control
IC (IC303) and external RAM (IC306) using check data.
If mechanical deck is connected, the motor and optics
could be damaged. This check is also executed by the
“All” menu item.
Supplement: How to disconnect mechanical deck
Disconnect flat cables connected to the CN403 and
CN404 of MB-91 board. Also, disconnect harness
from the CN102.
(4-5) ARP Register (IC303)
Data write
→
read, and accord check
Error 41: ARP register write, and read data discord
(4-6) ARP DRAM
Data write
→
read, and accord check
Error 44: ARP RAM read data discord
The program code data stored in ROM are copied to all
areas of RAM (IC306) connected to the ARP (IC303)
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 44,
and the test is suspended.
(4-7) ARP Reset
Data write
→
reset
→
clear check
(4-8) ARP Interrupt
Data transfer to ARP
→
interrupt detection check
5. AV Decoder
(5-2) AVdec Register (IC602)
Data write
→
read matching check
(5-3) AVdec DRAM
Data write
→
read, and accord check
Error 51: AVD RAM read data discord
The program code data stored in ROM (IC103) are copied
to all areas of RAM (IC603, IC604) connected to the AVD
(IC602) through the bus, then they are read and checked if
they accord. Further, 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 51, and the test
is suspended.
Normally, all items are checked successively one after another au-
tomatically unless an error is found.
Selecting 2 and subsequent items executes respective menus and
outputs the results.
For the contents of each submenu, see “Check Items List”.
