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HCD-SHAKE33/SHAKE77
22
Switching Regulator Diagnosis Flow (HCD-SHAKE33)
The Output from Switching regulator is checked.
Is following power voltage up to standard?
Standby
CN 3 pin1
CN 2 pin10
AC IN
Yes
No
Yes
END
No
Checks whether the state of a Cable and Outlet are normal.
If there are no problems, checks circumference circuit for
Main on/Sub on Output of Main 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
CN 3 :pin6
13V±0.5V
13V±0.5V
0V
0V
pin7
0V
0V
pin5
0V
0V
pin4
0V
0V
pin1
0V
0V
13V±0.5V
61V±5%
24V±2.5V
-24V±2.5V
-61V±5%
16V~23V
(1) AC input
(2) Fuse
(3) Sub Power transformer
(4) CN 3 Connector
pin1-2: 13V
pin3-4: GND
pin5: AC-DET
pin6: MAIN-ON
(5) MAIN Power transformer
(6) CN 2 Connector
pin1: V3+ (DC+16V~23V) _ (ref-V1)
pin2-4: V1- (DC-61V)
pin5: V2- (DC-24V)
pin6: GND
pin7: V2+ (DC+24V)
pin8-10: V1+ (DC+61V)
Hi (3.3V)
Power On
Demo mode
Low (0V)
Low (0V)
Standby
Power On
Demo mode
(1)
(2)
(3)
(6)
(5)
(4)
SECTION 5
TROUBLESHOOTING
Summary of Contents for HCD-SHAKE33
Page 119: ...MEMO HCD SHAKE33 SHAKE77 119 ...