|
TECH
1 Display
|
Test
Step No.
|
Notes
for Trouble-shooting (Possible Cause of Fault)
|
|
NO RADIO BUS SIGNAL
|
33, 34, 35, 36
|
· Lead SCL, SDA, MRQ is interrupted
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SDA VOLTAGE LOW
|
36
|
· Lead SDA has short circuit to ground
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SCL VOLTAGE LOW
|
34
|
· Lead SCL has short circuit to ground
· Radio defective
· MID defective
|
|
RADIO CIRCUIT MRQ VOLTAGE LOW
|
35
|
· Lead MRQ has short circuit to ground
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SDA VOLTAGE HIGH
|
36
|
· Lead SDA has short circuit to
voltage
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SCL VOLTAGE HIGH
|
34
|
· Lead SCL has short circuit to
voltage
· Radio defective
· MID defective
|
|
RADIO CIRCUIT MRQ VOLTAGE HIGH
|
35
|
· Lead MRQ has short circuit to
voltage
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SHORT SDA/SCL
|
34, 36
|
· Leads SDA and SCL are short-circuited
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SHORT SDA/MRQ
|
35, 36
|
· Leads SDA and MRQ are short-circuited
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SHORT SCL/MRQ
|
34, 35
|
· Leads MRQ and SCL are short-circuited
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SDA/SCL EXCHANG:
|
34, 36
|
· Leads SDA and SCL are mixed up
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SCL/MRQ EXCHANG:
|
35, 36
|
· Leads SDA and MRQ are mixed up
· Radio defective
· MID defective
|
|
RADIO CIRCUIT SDA/MRQ EXCHANG:
|
34, 35
|
· Leads MRQ and SCL are mixed up
· Radio defective
· MID defective
|
|
RADIO BUS WRONG SIGNAL
|
34, 35, 36
|
· Radio defective
· MID defective
|
