Marantz DV4100 User Manual download pdf (Page 66)

Test instructions mono board DVD-ASD1

GB 10 ASD-15.

Figure 5-3

5.3

µµ

P environment:

5.3.1 General:

All the tests are carried out by software tests. To start the

software tests, connect a PC to the serial bus of the STI5505.

Use connector 1602 for this connection:

Connector pin Signal

1602-1 TXD (STI5505 out)

1602-2 Service-mode select

1602-3 RXD (STI5505 in)

1602-4 RTS (STI5505 out)

1602-5 GND

1602-6 CTS (STI5505 in)

1602-7 +5V

Now start the terminal program. Make sure that the service-pin

of the

P is pulled low

(pin 1602-2) and then reset the

P (make the STB_CONT line

low). The terminal program of your PC should now display:

“DVD2 Diagnostic software version ...”. This message already

means that the

P is running. The first 5 commands from the

diagnostic software will be carried out automaticly during

diagnostic start-up. The other commands can be carried out by

selecting the “command input”. Just type the reference nbr. to

do the test.

To be sure that the

P is able to run the diagnostic software,

serial port will be checked during start-up.

5.3.2 Memory check:

The

P has a data bus that is connected to a DRAM (not

present!!) and a Flash.

The

P has also an internal link to the MPEG SDRAM

interface.

Next databus checks will be done at start-up to check this data-

bus and SDRAM bus.

There are 2 memory checks left that can be done by hand

command

5.4 General I/O port & peripherals check

5.4.1 I2C bus / EEprom check

To access the EEprom, the I2C bus is used. So by writing and

reading to the EEprom the chip and the bus is checked. With

next commands a certain byte is written to the EEprom. The

original information will always be written back into the

EEprom.

The complete Eeprom can also be checked on failures by

writing to all addresses and reading back. This test takes a long

time (110 sec).

5.4.2 Audio clock switch check

For a DVD disc the audio clock has to be switched from

44.1KHz sampling to 48KHz sampling.

To do so IO-port 1 / 4 has to be switched. Send next commands

and check the audio-clock

Figure 5-4

Ref. # Reference Name Remark

(1) BasicSpAcc Serial port Access test/initialisation

(2) BasicDramWrR DRAM Write Read

Ref. # Command Name Remark

(2b) BasicInterconSDRAM Data and address bus

Interconnection

(2c) BasicInterconFlash Data and address bus

Interconnection

PM3394B

ch1

CH1 2.00 V~ MTB20.0ns ch1+

CL06532065_005.eps

180500

Ref. # Command Name Remark

6 PapChksFl Checksum FLASH

16 CompSdramWrR SDRAM Write Read

Ref. # Command Name Remark

11 PapI2cNvram I2C NVRAM access

Ref. # Command Name Remark

15 PapNvramWrR NVRAM Write Read

Ref. # Remark Testpoint Frequency

7a (Clock A_CLK in

44.1kHz mode)

F566 11.2896MHz

0.02%

7b (Clock A_CLK in

48kHz mode)

F566 12.288MHz

0.02%

PM3394B

ch1

CH1 2.00 V~ MTB20.0ns ch1+

CL06532065_006.eps

180500

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Marantz DV4100 User Manual Page 66

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