Usb / Ethernet / Wi-Fi / Bluetooth - Denon DRA-100 Service Manual

2.3. USB / ETHERNET / Wi-Fi / Bluetooth

Check Power Supply Voltages for CY920 [CN1300], [CN1301].
MAIN PCB
[CN1301] : 8, 10pin +3.3V
[CN1301] : 2, 4pin +2.5V
[CN1301] : 7, 9pin +1.8V
[CN1301] : 1, 3pin +1.2V
Check Power Supply Voltages for USB.
MAIN PCB
[CP1305] : 1(VBUS) +5V
Check Power Supply Voltages for ADSP[IC1401].
MAIN PCB
[IC1401] : 3, 11, 23, 40, 47, 75, 81 pin +3.3V
[IC1401] : 4, 8, 12, 13, 15, 19, 33, 39, 41, 46, 49, 59, 64, 65, 66, 67,
69, 77, 82, 85, 88 pin +1.2V
Check Power Supply Voltages for DSD/PCM Selector [IC1402].
MAIN PCB
[IC1402] : 16pin +3.3V
Check RESET signal for CY920[CN1301].
MAIN PCB
[CN1301] : 15pin E-RESET = "Hi"
Check RESET signal for CY920[CN1301].
MAIN PCB
[CN1401] : 86pin ADI_RST = "Hi"
Check Digital Audio Data output of CY920[CN1301].
MAIN PCB
Case of PCM signal
[CN1301] : 30pin NET/USB_BCK
[CN1301] : 34pin NET/USB_PCM_DATA/DSDL
[CN1301] : 28pin NET/USB_LRCK
[CN1301] : 26pin NET/USB_MCK
Case of DSD signal
[CN1301] : 30pin NET/USB_BCK
[CN1301] : 34pin NET/USB_PCM_DATA/DSDL
[CN1301] : 32pin NET/USB_DSDR
OK
OK
OK
OK
OK
OK
OK
Check the soldering or replace the device or SMPS.
NG
SMPS PCB ➡ MAIN PCB
[CN1002] 10, 11pin +5V ➡ [IC1012] : 3pin +5V, 2pin +3.3V
[CN1002] 10, 11pin +5V ➡ [IC1014] : 3pin +5V, 2pin +1.8V
NG
Check the soldering or replace the device or SMPS.
SMPS PCB ➡ MAIN PCB
[CN1002] 10, 11pin +5V ➡ [IC1301] : 5pin +5V, 1pin +5V
Check the soldering or replace the device or SMPS.
NG
SMPS PCB ➡ MAIN PCB
[CN1002] 10,11pin +5V ➡ [IC1009] : 4pin +5V, 5pin +3.3V
[CN1002] 10,11pin +5V ➡ [IC1010] : 4pin +5V, 5pin +1.2V
Check the soldering or replace the device or SMPS.
NG
SMPS PCB ➡ MAIN PCB
[CN1002] 10,11pin +5V ➡ [IC1009] : 4pin +5V, 5pin +3.3V
Check the soldering or replace the device.
NG
[CN1301] : 15pin, [IC1201] : 55pin, [R1228]
Check the soldering or replace the device.
NG
[CN1401] : 86pin, [R1425], [IC1201] : 118pin, [R1261]
NG
Check the soldering or replace the device.
[CN1301] : 30pin
[CN1301] : 34pin
[CN1301] : 28pin
[CN1301] : 26pin
[CN1301] : 30pin
[CN1301] : 34pin
[CN1301] : 32pin
35
[IC1013] : 4pin +3.3V, 5pin +2.5V
[IC1015] : 4pin +1.8V, 5pin +1.2V
➡ [BD1019] : +3.3V
➡ [BD1020] : +1.2V