STR-DA1ES, STR-DB780 - Sony Audio Service Manual (repair manual). Page 12

12

Procedure:
1. While pressing the 

[2CH ST]

 and 

[CINEMA STUDIO EX C]

 buttons, press the 

/1

button to turn on the main power or press the

/1

button to turn on the main power, then press three buttons of 

[ENTER]

, 

[2CH ST]

 and 

[CINEMA STUDIO EX C]

 simultaneously.

2. The message “DSP TEST” appears, then change into “SWP. XXXX”.
3. Each time the 

[>]

 button is pressed, the item is switched in order as follows .

Items

Display

Remark

SWAP

SWP. XXXX

NORM, ALL, C SW, SLSR (switching with jog dial)

DSP communication

DSP OK or DSP ERROR

When DSP ERROR is displayed, press the 

[ENTER]

 key will clear

error

Bass management

BM. XXXX

AUTO, OFF, 1 to 15 (switching with jog dial)

Main speaker cut off frequency

MAIN XXX

80 Hz to 200 Hz (switching with jog dial by 10 Hz)

LFE cut off frequency

LFE XXX

80 Hz to 200 Hz (switching with jog dial by 10 Hz)

Co-ef. Read address

RA.12XXX

Turn the jog dial to switch the read data address

Co-ef. Read data

RD.XXXXXX xx

Value is read data

Co-ef. Write address

WA.12XXX

Turn the jog dial to switch the write data address

Co-ef. Write data

WD.XXXXXX xx

Turn the jog dial to set the write data

SRAM

RAMC XXXX

OFF, EXE, NG, PASS

Total operation time

TTL-XXXX xx

4 large character is hour, 2 small character is minutes

Longest power on time

LNG-XXXX XX

Volume 

I – 50 dB time display

V50-XXXX XX

Volume 

I – 40 dB time display

V40-XXXX XX

Volume 

I – 30 dB time display

V30-XXXX XX

Volume 

I – 20 dB time display

V20-XXXX XX

Volume 

I – 10 dB time display

V10-XXXX XX

Volume 

I 0 dB time display

V00-XXXX XX

Protector count value

PROT XXX

0 to 255

Fuse open count value

FUSE XXX

0 to 255

EEPROM condition

E-XXXXX

S RST (super reset, first time use EEPROM, test pattern corrupted)
FAIL (EEPROM read/write with microprocessor have problem)
V CHG (software version change)
D CHG (destination/model change)
CLEAR (back up data initialize)
NORM (normal AC on)

EEPROM read

E-XXX-XX

First four hex code is EEPROM address
Last two hex code is EEPROM data

EEPROM super reset

S.RST-YES or S.RST-NO

When S.RST-YES is displayed, press the 

[ENTER]

 key will clear all

EEPROM data