The Power Can Not Be Turned On - Marantz PM-11S3 Service Manual

2.tHe PoWeR CAN Not Be tURNeD oN

(StANDBY LeD LIGHtS
Check each connector.
Do you have broken the F8510 is 8U-110131-4?
No
When the power is turned on, LCD or lights?
No
Is the voltage of +15V output to N8007(4pin) of 8U-110131-6?
No
Is the voltage of +24V output to JV22 of 8U-110131-6?
No
The defect of a power supply circuit from N8003 to U8401 on 8U-
110131-6 is considered.
Check for short circuits or blown on the parts.
JV118
Z8006
N8007
U8002
C8016 C8015
JV86
Z8005
FLASH)
C8007
L8006
方向有
N8007
JV155
R8001
JV54
N8001
JV161
20.0
JV134
Z8001
20.0
JV142
JV43
7.5
D8001
R0006 R0001
R0007
R0002
YeS
Replace the F8510.
Check voltage of N80078(5pin,6pin).
YeS
If L is that PROTECT 1, if L is the 5pin 6pin is PROTECT
2 is activated.
Refer to "PROTECTION MODE" (11 page) and check
applicable circuit.
YeS
If H is M_B_DOWN detection of both 8U-210120-1
Circuit may be faulty.
YeS
The defect of U8401 is considered.
N8006
Z8007
Z8402
U8401
JV22
Z8002 D8020
D8012
D8011 D8015
D8014 D8013
D8017
D8002
方向有
R8015 R8122
N8104
N8003
18
N8005
R8028
C8012
C8006
R8019
JV108
C8010
D8016
D8018
方向有
D8116
D8115
D8113 D8114
D8109
D8110
D8111 D8112
8U-110131-6
1