Philips SD-5.31SL Service Manual page 12

EN 12 5. SD-5.31SL
PM3380B
ch1 ch1 freq 13.5MHz
1
CH1 1.00V= MTB 50.0ns
Figure 5-4 XTAL
PM3380B
ch1 ch1 freq 123MHz
1
CH1 1.00V= MTB 5.00ns
Figure 5-5 SD_CLOCK
PM3380B
ch1: freq= 33.8MHz
ch1
CH1 2.00 V= MTB50.0ns
Figure 5-6 ALI_CLOCK
µP Environment:
5.3
5.3.1 General:
All the tests are carried out by diagnostic software. To start the
diagnostic software, connect a PC to the serial bus of the ZIVA.
Use connector 1702 for this connection.
Test Instructions Mono Board SD5.31SL
ch1+
CL 36532043_083.eps
030603
ch1+
CL 36532043_072.eps
030603
ch1+
CL 36532043_070.eps
050603
Table 5-3 PC connection
Connector pin Signal
1702-1 TXT_SER (service port/UART transmit)
1702-2 SERVICE (service/normal mode select)
1702-3 RXD_SER (service port/UART receive)
1702-4 Not in use
1702-5 GND
1702-6 Not in use
1702-7 +5V_SER
Now start the terminal program. Make sure that the service-pin
(pin 1702-2) of the µP is pulled low.
The terminal program of your PC should now display: "DVDv6
Diagnostic software version ...". This message already means
that the µP is running. This is also an indication that the first
basic nucleus (nucleus number 1) has been executed during
diagnostic start-up. The other commands can be carried out by
selecting the "command input" and simply type the reference
nbr. to do the test or select the "Menu - driven" test.
To be sure that the µP is able to run the diagnostic software,
serial port will be checked during start-up.
Table 5-4 Serial port check
Ref. # Reference Name
(1) BasicSpAcc
With this test, the serial communication is checked in both
directions.
5.3.2 Memory Check:
The Flash can be check for failure with the PapChksFl
command.
Table 5-5 Memory check
Ref. # Command Name
6 PapChksFl
The PapChksFI calculate and verify checksum of the FLASH.
This includes the entire binary ROM image checksum.
5.4 General I/O Port & Peripherals Check
5.4.1 I2C Bus/NVRAM Check
To access the NVRAM, the I2C bus is used. So by writing and
reading to the NVRAM the chip and the bus is checked. With
next commands a certain byte is written to the NVRAM. The
original information will always be written back into the
NVRAM.
Table 5-6 I2C/NVRAM check command
Ref. # Command Name
11 PapI2cNvram
The complete NVRAM can also be checked on failures by
writing to all addresses and reading back. This test takes a long
time (110 sec).
Remark
Serial port Access test/
initialisation
Remark
Checksum FLASH
Remark
I2C NVRAM access