Philips SACD 1000/001 Service Manual page 57

Diagnostic software, trouble shooting and test instructions
Testing of I2C communication to DAC board can be done using diagnostic software.
DAC BOARD
I2C COMMUNICATION
Diagnostic Software
NO
Clock Internal
Clock External
YES
NO
Clock Freq. SACD
Clock Freq. CDDA
YES
NO
DAC MODE
MENU
YES
NO
DAC FILTER
MENU
YES
NO
DAC MUTE
MENU
YES
I2C OK
• See MENU MODE INTERFACE to put set in DSW mode
• Select 2: Dac Board menu
• Internal : CLK SEL = H
• External: CLK SEL = L (0V)
• Check QD21, QD04, QD03
• SACD: CLK FRQSEL = L
• DDA: CLK FRQSEL = H
• Check QD21, QD02, QD05
•In this menu, I2C Communication to DAC's is tested
•Check DAC's QD41, QD51, QD61.
• Filter SACD: SACD ACT = H
• Filter Non-SACD: SACD ACT = L
• Check QD21, filter control circuit FILT1, FILT2
• Mute ON: AMUTE = H
• Mute OFF: AMUTE = L
• Check QD21, QD32, DAC's
SACD 1000
CL 06532152_097.eps
131200
5. GB 57