Sony dvp-c650d Service Manual page 73

QQ
3 7 63 1515 0
Selecting 2 and subsequent items executes respective menus and
outputs the results.
For the contents of each submenu, see "Check Items List".
General Description of Checking Method
2. Version
(2-2) Revision
ROM revision number is displayed.
Error: Not detected.
The revision number defined in the source file of ROM
(IC205) is displayed with four digits.
(2-3) ROM Check Sum
Check sum is calculated.
Error: Not detected.
The 8-bit data are added at addresses 0x000F0000 ~
0x002EFFFF of ROM (IC205) and the result is displayed
with 4-digit hexadecimal number. Error is not detected.
Compare the result with the specified value.
(2-4) Model Type
Model code is displayed.
Error: Not detected.
The model code read from EEPROM (IC201) is displayed
with 2-digit hexadecimal number.
DVP-C650D (US, Canadian)
DVP-C650D (E)
TE
L 13942296513
DVP-C653D (PX)
(2-5) Region
Region code is displayed.
Error: Not detected.
The region code determined from the model code is dis-
played.
3. Peripheral
(3-2) Gate Array Check
Data write → read, and accord check
Error 02: Gate array write/read discord
Data 0x00~0xFF are written to the address 0xF of GA
(IC601), then read and checked if they accord.
(3-3) EEPROM Check
Data write → read, and accord check
Error 03: EEPROM write/read discord
Data 0x9249, 0x2942, 0x4294 are written to addresses
0x00~0xFF of EEPROM (IC201), then read and checked.
Before writing, the data are saved, then after checking, they
are written to restore the contents of EEPROM.
(3-4) NAND Flash Check
Data clear → write → read, and accord check
Error 04: Clear error
05: Write error
06: Read data discord
www
21: Faulty blocks exceed 10
The data clear, write, read, and check are executed to the
block 0 of Flash memory (IC602).
.
In case of a faulty block, its address is displayed.
An error is output if faulty blocks exceed 10.
http://www.xiaoyu163.com
Model Type
6 0
6 1
6 0
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
4. Servo
(4-2) Servo DSP Check
Data write → read, and accord check
Error 12: Read data discord
Data 0x9249, 0x2942, 0x4294 are written to the address
0x602 of RAM in the Servo DSP (IC701), then read and
checked.
(4-3) DSP Driver Test
Test signal data → DSP Driver
Error: Not detected.
Caution: Do not conduct this test with a mechanical deck
connected.
The maximum voltage is applied to the Servo
Driver IC (IC801, IC802). If mechanical deck is
connected, the motor and optics could be dam-
aged. Disconnect mechanical deck following the
output message, then enter specified 4- or 5-digit
number from the remote commander, and press
[ENTER]
the
the input data accord. Check the output level, then
[NEXT]
press the
This test is skipped if "All" is selected.
Supplement: How to disconnect mechanical deck
Disconnect flat cables connected to the CN002
and CN003 of MB-85 board. Also, disconnect
harness from the CN011.
5. Supply
Q Q
3 6 7 1 3 1 5
Caution: Do not conduct this check with a mechanical deck con-
nected.
An access is made to the stream supply and servo con-
trol IC (IC303) and external RAM (IC304) 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 CN002 and
CN003 of MB-85 board. Also, disconnect harness
from the CN011.
(5-2) ARP Register Check
Data write → read, and accord check
Error 08: ARP register write, and read data discord
Data 0x00 to 0xFF are written to the TMAX register (ad-
dress 0xC6) in ARP (IC303), then they are read and checked.
(5-3) ARP to RAM Data Bus
Data write → read, and accord check
Error 09: ARP ←→ RAM data bus error
Data 0x0001 to 0x8000 where one bit each is set to 1 are
written to the address 0 of RAM (IC304) connected to the
ARP (IC303) through the bus, then they are read and
checked. In case of discord, written bit pattern and read
data are displayed. If data where multiple bits are 1 are
read, the bits concerned may touch each other. Further, if
data where certain bit is always 1 or 0 regardless of written
data, the line could be disconnected or shorted.
co
.
6-2
9 4 2 8
. The test is conducted only when
to finish the test.
0 5 8 2 9 9 4 2 8
m
9 9
9 9