Common (Dir-Spk Out / Power、Control Signal ) - Denon DRA-100 Service Manual

2.1.2. COMMON (DIR-SPK out / POWER、Control signal )
Check Power Supply Voltages for DIR [IC1451].
MAIN PCB
[IC1451] : 46pin +5V
[IC1451] : 22, 36, 42 pin +3.3V
Check Power Supply Voltages for CY920 [CN1318].
MAIN PCB
[CN1301] : 8, 10 pin +3.3V
[CN1301] : 2, 4 pin +2.5V
[CN1301] : 7, 9 pin +1.8V
[CN1301] : 1, 3 pin +1.2V
Check Power Supply Voltages for FPGA [IC1501].
MAIN PCB
[BD1021] : +3.3V
[IC1011] : 4pin +5V, 5pin +2.5V
[Q1010] : 4pin +1.2V, 1, 2, 5, 6pin +1.2V
Check Power Supply Voltages for PWM Modulator and Gate Driv-
er.
MAIN PCB
[IC1001] : 3pin +12V, 2pin +5.25V
[IC1002] : 4pin +5.25V, 5pin +3.3V
[IC1003] : 4pin +5.25V, 5pin +1.8V
[IC1006] : 3pin +9V, 1pin +5V
[IC1004] : 6pin +5V, 5pin +3.3V
[IC1007] : 2pin -9V, 3pin -5V
[IC1005] : 5pin -32V, 3pin -22.0V
Check the AMP output power supply voltage.
MAIN PCB
[CN1001] : 1pin +32V
[CN1001] : 3pin -32V
Check RESET signal for DIR [IC1451].
MAIN PCB
[IC1451] : 34pin RESET = "Hi"
Check Clock for DIR [IC1451].
MAIN PCB
[IC1451] : 39pin XTI = 24.576MHz
Check control signal for DIR [IC1451].
MAIN PCB
[IC1451] : 23(DIR_DO), 24(DIR_DI), 25(DIR_CL), 26(DIR_CE) pin
OK
OK
OK
OK
OK
OK
NG Check the soldering or replace the device or SMPS.
SMPS PCB ➡ MAIN PCB
[CN1002] 10, 11pin +5V ➡ [Q1008] : +5V
[CN1002] 10, 11pin +5V ➡ [IC1009] : 4pin +5V, 5pin +3.3V
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 ➡ [IC1009] : 4pin +5V, 5pin +3.3V
[CN1002] 10, 11pin +5V ➡ [IC1011] : 4pin +5V, 5pin +2.5V
[CN1002] 10, 11pin +5V ➡ [IC1010] : 4pin +5V, 5pin +1.2V
NG Check the soldering or replace the device or SMPS.
SMPS PCB ➡ MAIN PCB
[CN1002] 1pin +12V ➡ [IC1001] : 3pin +12V, 2pin +5.25V
➡ [IC1002] : 4pin +5.25V, 5pin +3.3V
➡ [IC1003] : 4pin +5.25V, 5pin +1.8V
[CN1002] 3pin +9V ➡ [IC1006] : 3pin +9V, 1pin +5V
➡ [IC1004] : 6pin +5V, 5pin +3.3V
[CN1002] 3pin +9V ➡ [IC1007] : 2pin -9V, 3pin -5V
[CN1001] 3pin -32V ➡ [IC1005] : 5pin -32V, 3pin -22.0V
NG
Check the soldering or replace the device or SMPS.
MAIN PCB
[CN1001] : 1pin +32V, [CN1001] : 3pin -32V
SMPS PCB
[CN221] : 1pin +32V, [CN221] : 3pin -32V ➡ Replace the SMPS.
NG
Check the soldering or replace the device.
[IC1451] : 34pin, [R1456], [IC1201] : 68pin, [R1231] :
[IC1451] : 39pin, [X1451] : 3pin
[IC1451] : 23(DIR_DO), 24(DIR_DI), 25(DIR_CL), 26(DIR_CE)pin
[IC1201] : 86(DIR_DO), 87(DIR_DI), 88(DIR_CL), 89(DIR_CE)pin
[R1246], [R1247], [R1248], [R1249]
32
➡ [BD1018] : +3.3V
➡ [IC1013] : 4pin +3.3V, 5pin +2.5V
➡ [IC1015] : 4pin +1.8V, 5pin +1.2V
➡ [Q1010] : 4pin +1.2V, 1, 2, 5, 6pin
+1.2V