Автор Тема: 03-CM-E014  (Прочитано 29 раз)

aze1959

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03-CM-E014
« : 20 Сентября 2017, 08:18:38 »
Product : CDT Monitor
Model : AN15V/AN17L/AN17K
SUBJECT : The Countermeasure of IC601 failure (AN15V/AN17L/AN17K)
Defect Symptom I:C601 have high failure rate at the field. (Symptom: No Power)
Sometimes,besides IC601, D601,Fuse and IC605 can be damaged/failed at a same time.
The root cause is C632 capacitor which makes noise into IC601.(AN15V,AN17L model have C632)
Model name : AN15V/AN17L/AN17K
Solution : When 'NO-POWER' problem is occured, change IC601. If the problem is not solved,
change D601,IC605 and Fuse and than follow the below.
1
2
3
1
2
1
Part List
* Please apply corrective action based on above version of PCB.
Application Reference ( ) Only Defected sets ( ) Whole sets ( O )
Attachment Schematic Diagram ( ) Component Lay-out ( ) Exploded View ( )
Mechanical Diagram ( ) None ( ) Others ( O )
Product Month : all Serial No. (~ from)
Published by : T.S.KONG Checked by : M.S.Park Approved by :H .I.Ahn
Revision (V8.1 : July 30, 1997) ... Customer Satisfaction Group
Model Counterplan Applicable PCB
AN15V
AN17K
Previous version of MP 2.0
AN17L
Attach 4.7nF capacitor on the solder side of IC601 sync and GND line.
Attach zener 30V diode on the solder side of C607. Put (-) on the IC601 vcc
Remove C632 on the PCB.
Attach zener 30V diode on the solder side of C607. Put (-) on the IC601 vcc
Remove C632 on the PCB.
All Version
Previous version of MP 2.0
Model
AN15V
LOC
C636
ZD601
C632
AN17K ZD601
ZD601
C632
0403-000754
2201-000325 Delete
NONE
NONE 0403-000754
0403-000754
NONE
NONE
2201-000019 Delete
AN17L
Bulletin No. : 03-CM-E014
Bulletin Date : 13.Mar,2003
ECN No. :
2301-000013
Attach zener 30V diode on the solder side of C607. Put (-) on the IC601 vcc Previous version of MP 2.0
Не стоит прогибаться под изменчивый мир. Пусть лучше он прогнётся под нас!