Denon PMA-1600NE - Page 49

Check the Master clock
DIGITAL PCB
[R750] : 22.5792MHz or 24.576MHz
See "6. DIGITAL PCB DIR BLOCK"
z
PCM
Check the I2S signal
DIGITAL PCB
[R736] (USBB_LRCK) : LRCK clock (32KHz -
192KHz)
[R735] (USBB_BCK) : BCK clock ( 2.112MHz -
12.288 MHz)
[R737] (USBB_DATA) : PCM data
TO "2. The power cannot be turned on (Power
indicator LED lights ashes)"
Check Soldering or replace for the following parts.
Check Soldering or replace for the following parts.
Check the DC voltage
DIGITAL PCB
[C770](+) (USBB3.3V) : +3.3V
[L703] (USBB1.8V) : +1.8V
See "5. INPUT PCB (Check the INPUT PCB)"
z
DSD
Check the DSD signal
DIGITAL PCB
[R736] (DSD_BCK) : DSD_BCK
[R738] (DSD_DATA_R) : DSD DATA R
[R737] (DSD_DATA_L) : DSD DATA L
Check Soldering or replace for the following parts.
7. DIGITAL PCB USB-DAC BLOCK
NG
NG
NG
NG
OK
OK
OK
OK
Check the OPT IN SPDIF signal input path.
DIGITAL PCB
Check the SPDIF signal
[K503, K504, U952, U501 : 4, 6pin]
Check the I2S signal output path.
DIGITAL PCB
Check the SPDIF signal
[U501 : 17pin] DATA
[U501 : 18pin] LRCK
[U501 : 19pin] BCK
[U501 : 20pin] MCK
Check the AUDIO Signal output -3 (DIR system)
DIGITAL PCB Check the AUDIO DATA/CLK
Check the [N1810] output signal WCK, BCK,
PCM_DATA_L/R
TO "5. INPUT PCB (Check the INPUT PCB)"
Check the cable / connector and its connection.
Check soldering.
• [U501]
Check soldering.
• [K503, K504, U952, U501 : 4, 6pin]
Check soldering.
・[U202, R246]
INPUT PCB
・[U411, U413]
Check soldering.
• [U501, R514 - 517, R208 - 211, U202]
Check Power Supply (DIR)
DIGITAL PCB
Check the input voltage of [U501]
33_VCC_DIR
Check the COAXIAL IN SPDIF signal input path.
DIGITAL PCB
Check the SPDIF signal
[K501, U592, U501 : 37pin]
Check the I2S signal output path.
Check soldering.
• [K501, U592, U501 : 35, 37pin]
6. DIGITAL PCB DIR BLOCK
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
49
Caution in
servicing
Electrical Mechanical Repair Information Updating