Sony HCD-SHAKE10 - Page 25

HCD-SHAKE10/SHAKE30/HCDSHAKEX10/HCDSHAKEX30/HCDSHAKEX70
25
Switching Regulator (SSN-171AD) Diagnosis Flow (HCDSHAKEX70)
(1) AC input (2) Fuse (3) Sub Power transformer (4) CN 4 Connector
pin1: Audio (13.5V) pin2: Audio (GND) pin3-4: LED (13.5V) pin5-6: LED (GND) pin7: AC-Det pin8: PCON pin9: LOW AC
(5) MAIN Power transformer (6) CN 2 Connector pin1: SPV (DC-45.5V) pin2-4: -PVDD (DC-62.5V) pin5: -VL (DC-24V) pin6: GND pin7: +VL (DC+24V) pin8-10: +PVDD (DC+62.5V)
The Output from Switching regulator is checked. Is following power voltage up to standard?
Standby  Demo mode Power On
CN4 pin1 CN2 pin2-4
AC IN
Yes
No
Yes
END
No
Check whether the state of the Cable and Outlet are normal. If there are no problems, check circumference circuit for Main on/Sub on Output of the Motherboard mount side.
Replaces Switching regulator if it is not up to standard.
The Power Control signal to Switching regulator is checked. Is following power voltage OK? Main on/Sub on Standby Demo mode Power On CN 4 :pin8 Low (0V) Low (0V) Hi (3.3V)
13.5V±0.5V
13.5V±0.5V 13.5V±0.5V
0V 0V
pin5 0V 0V
pin7 0V 0V
pin8-10 0V 0V
pin1 0V 0V
-62.5V±5% -24V±5% +24V±5% +62.5V±5% -45.5V±10%
(6)
(4)
(3)
(5)
(2)
(1)
SYSSET
2019/10/2523:34:43(GMT+09:00)