Sony PCS-1500 Service Manual page 160

4-2. Self-diagnostics Function
user@service[PP__]#diag audio digital
Audio DSPs diagnostics start ...
aprcnt>CODEC download from aprcnt segment
aprcnt>CODEC1 download
aprcnt>
aprcnt>CODEC2 download
aprcnt>
aprcnt>APR_INITIALISE OK EC_MODE:00 (retry=0)
aprcnt>CODEC1 DIAG:8000
aprcnt>CODEC2 DIAG:8000
aprcnt>EC1
aprcnt>EC2
aprcnt>
aprcnt> |--CODEC1 register ............................... OK → IC520 and its peripheral
aprcnt> |--CODEC1 internal data memory ........ OK → IC520 and its peripheral
aprcnt> |--CODEC1 external data memory......... OK → IC521 and its peripheral
aprcnt> |--CODEC1 interrupt 3 .......................... OK → AUD8K
aprcnt> |--CODEC1 interrupt SIO2 ................... OK → IC501 and its peripheral
aprcnt>
aprcnt> |--CODEC2 register .............................. OK → IC530 and its peripheral
aprcnt> |--CODEC2 internal data memory ........ OK → IC530 and its peripheral
aprcnt> |--CODEC2 external data memory ....... OK → IC531 and its peripheral
aprcnt> |--CODEC2 interrupt 3 ......................... OK → AUD8K
aprcnt> |--CODEC2 interrupt SIO2 .................. OK → IC501 and its peripheral
aprcnt>
aprcnt> |--EC1
aprcnt> |--EC1
aprcnt> |--EC1
aprcnt> |--EC1 <-> DSP SIO1 data flow ......... OK → IC570, IC540 or their peripheral
aprcnt> |--EC1
aprcnt> |--EC1
aprcnt> |--EC1
aprcnt>
aprcnt> |--EC2
aprcnt> |--EC2
aprcnt> |--EC2
aprcnt> |--EC2
aprcnt>
aprcnt>product_id = 15
aprcnt>system_id = 00
aprcnt>board_id = 00
aprcnt>term_mode = 10
aprcnt>apr_init_mode = 80
Audio DSPs DIGITAL Diag. : ALL TEST PASSED
m
When you want to diagnose the audio DSP, perform the video block diagnosis as shown below before
starting diagnosing the audio DSP.
#diag[|]setVCPDRAMSSize[|]4↓
#diag[|]video↓
Immediately after entering it, check digital circuit of the DSPs as shown below.
#diag[|]audio[|]digital↓
Then perform the analog block (AA-1, AA-2, AA-3) check.
When you want to diagnose the analog circuit of the audio block, the digital block of the audio block
must have been completed in advance. Even when the video/audio digital tests have already been com-
pleted, correct result cannot be obtained if any commands that affect operations of the system including
video circuit and power supply for audio DSP. Perform this command continuously.
4-30
DIAG:8000
DIAG:897f
others ................................ OK → IC570 and its peripheral
internal data memory ........ OK → IC570 and its peripheral
external data memory ....... OK → IC571, IC572, IC573, or their peripheral
interrupt 16kHz ................ OK → AUD8K
interrupt SIO1 ................... OK → IC501 and its peripheral
interrupt SIO2 ................... OK → IC501 and its peripheral
internal data memory ........ OK → IC540 and its peripheral
external data memory ....... OK → IC541, IC542, IC543, or their peripheral
interrupt 16kHz ................. OK → AUD16K
interrupt SIO1 ................... OK → IC501 and its peripheral
AD-00
AD-1
AD-2
AD-3
AD-4
AA-1
PCS-1500/1500P