Test Program - Yamaha CDR-S1000 Service Manual

TEST PROGRAM

When the test program is started, the memory and regis-
ter are checked automatically. If nothing is found faulty,
the AUDIO measurement mode is set.
Starting the test program
Short the connector CB7 (2P).
+
POWER ON
Main memory check
Check the external memory (IC7).
OK
DSP3 register check
Check the DSP3 (IC205).
"DSP Reg" on the FL display
OK
"DSP Reg End" on the FL display
ACDR register check
Check the ACDR (IC4).
"ACDR Reg" on the FL display
OK
"ACDR Reg End" on the FL display
EEPROM check
Check the EEPROM (IC6).
"EROM Mem" on the FL display
OK
"EROM Mem End" on the FL display
End of the test program
AUDIO measurement mode is started.
"AMT mode" on the FL display
CB7
NG
D3 (red) LED flashes at a high speed
NG
"DSP Reg Err" on the FL display
NG
"ACDR Reg Err" on the FL display
NG
"EROM Mem Err" on the FL display
When canceling the test program or the AUDIO mea-
surement mode, turn off the power and correct short
circuit of the connector CB7 (2P).
CDR-S1000
D3
10