![background image](http://html.mh-extra.com/html/marantz/hd-dac1/hd-dac1_service-manual_1725402042.webp)
42
3.4. USB-A
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.
Check the operation of IC41
DIGITAL PCB (CUP12688)
IC41 (16)pin:RESET is
"Hi"
?
X401 is the oscillator?
48MHz
Check the communication of IC11, IC41, IC43.
Check the USB AUDIO signal.-1 (USB memory connection)
DIGITAL PCB (CUP12688)
IC41 (16)pin:RESET is
"Hi"
?
IC41 (35)pin MCK input
22.5792MHz
IC41(31)pin DATA output 16BIT
IC41(32)pin BCK output
2.8224MHz
IC41(34)pin LRCK output 44.1kHz
Check the DIR (USB memory connection)
DIGITAL PCB (CUP12688)
Check the voltage of IC42
33_VCC_DIR
Check the DIR input and output (USB memory connection)
DIGITAL PCB (CUP12688)
IC42(12)pin BCK input
2.8224MHz
IC42(13)pin LRCK input
44.1kHz
IC42(14)pin DATA IN input
16BIT
IC42(17)pin DATA output
16BIT
IC42(18)pin LRCK output
44.1kHz
IC42(19)pin BCK output
2.8224MHz
IC42(20)pin MCK output
22.5792MHz
Check the USB-A AUDIO signal.-2(USB memory connection)
DIGITAL PCB (CUP12688)
Check the following terminals
IC11, 55pin (SIGNAL_SEL) :
"Hi"
IC11, 40pin (CONT5) :
"Hi"
IC11, 49pin (AUDIO_DSD/PCM) :
"Lo"
Below is the same as DITAL_BLOCK Check the AUDIO signal
output-1
Check the communication with the USB memory.
(USB memory connection)
DIGITAL PCB (CUP12688)
IC41 (40) (41)pin: Communication waveform is OK? D+, D-
Check the cable and the connection of the connector.
Check Soldering
• IC41, IC42, IC43, CN11
MAIN POWER PART PCB(CUP12689-1)
• BN92
USB A PCB(CUP12687-4)
• BN83, CN84, JK81
Check Soldering
• IC24, R202, R454, R450, R451,
R452, R422, R423, R424, R469
Check Soldering
• IC41, IC43, X401, IC11
Check the cable and the connection of the connector.
Check Soldering
• IC42, CN11
MAIN POWER PART PCB(CUP12689-1)
• BN92
Check the cable and the connection of the connector.
Check Soldering
• IC41, IC43
USB A PCB(CUP12687-4)
• BN83, CN84, JK81
Check Soldering
• R422, R423, R424, R415, R416, R417, R418
Check Soldering
• IC11
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
Check Power Supply
DIGITAL PCB (CUP12688)
• Check the voltage of IC41, IC42, IC43.
• Check the voltage of Q401
33_VCC_USB_A / +5V_VBUS / Q401 E1.0V
O.K.
Summary of Contents for HD-DAC1
Page 8: ...Personal notes 8 ...
Page 46: ...46 Personal notes ...
Page 52: ...WIRING DIAGRAM 52 ...
Page 68: ...NJV7181 IC48 Pin configuration BLOCK DIAGRAM 68 ...
Page 69: ...MFI337S3959 DIGITAL IC14 69 ...
Page 70: ...PCM9211 DIGITAL IC42 PCM9211 Block Diagram 70 ...
Page 71: ...PCM9211 Pin Discriptions 71 ...
Page 72: ...uPD63530 DIGITAL IC41 72 ...
Page 73: ...uPD63530 Pin Discriptions 73 ...
Page 74: ...74 ...
Page 75: ...ADuM1280 DIGITAL IC51 IC52 IC57 IC58 ADuM1285 DIGITAL IC53 IC54 IC55 IC56 75 ...
Page 79: ...CS2000 CP DIGITAL IC22 CS2000 CP DIGITAL U3914 Block Diagram 79 ...
Page 80: ...2 DISPLAY FLD GP1261AI FL81 DIMENSION PIN CONNECTION PTTERN DETAIL 80 ...