13
AVR-4308CI
※
Unless specified, 1U-3800-1 A.VIDEO UNIT part.
D
Input
CVBS
Check
±
5VA and +5VD.
+5VA : CW082-3,4pin
-5VA : CW082-1,2pin
+5VD : CW132-1pin
NG
To troubleshooting 1.1 Power not turn
on.
OK
Check input/output of analog SW.
Input : IC420-13pin
Output : IC420-3pin
NG
Check analog SW settings.
IC420-9,10,11pin : L(0V)
IC420-6pin : L(0V)
NG
Check IC505, IC508 and CW132
soldering, or DIGITAL UNIT flaw.
OK
OK
Check soldering of IC420.
Check input/output of AMP.
Input : IC409-5pin
Output : IC409-7pin
NG
Check soldering of IC409.
OK
Check input/output of analog SW.
Input : IC419-14pin
Output : IC419-13pin
NG
Check analog SW settings.
IC419-10pin : L(0V)
IC419-9pin : H(+5V)
NG
Check soldering of IC506 and CW132.
OK
OK
Check soldering of IC419.
Check input/output of AMP.
Input : IC405-5pin
Output : IC405-7pin
NG
Check soldering of IC405.
OK
Check cable between main unit and mon-
itor or Check monitor.
※ 特に記載がない場合は 1U-3800-1 A.VIDEO UNIT の部品です。
D
入力
CVBS
± 5VA，+5VD の確認
+5VA : CW082-3,4pin
-5VA : CW082-1,2pin
+5VD : CW132-1pin
NG
1.1 電源が入らないのﾄﾗﾌﾞﾙｼｭｰﾃｨﾝｸﾞへ
OK
ｱﾅﾛｸﾞ SW の入出力確認
入力 : IC420-13pin
出力 : IC420-3pin
NG
ｱﾅﾛｸﾞ SW の設定確認
IC420-9,10,11pin : Ｌ(0V)
IC420-6pin : Ｌ(0V)
NG
IC505,IC508,CW132 のﾊﾝﾀﾞ付け確認
もしくは DIGITAL UNIT の不具合
OK
OK
IC420 のﾊﾝﾀﾞ付け確認
AMP の 入出力確認
入力 : IC409-5pin
出力 : IC409-7pin
NG
IC409 のﾊﾝﾀﾞ付け確認
OK
ｱﾅﾛｸﾞ SW の入出力確認
入力 : IC419-14pin
出力 : IC419-13pin
NG
ｱﾅﾛｸﾞ SW の設定確認
IC419-10pin : Ｌ(0V)
IC419-9pin : H(+5V)
NG
IC506, CW132 のﾊﾝﾀﾞ付け確認
OK
OK
認 IC419 のﾊﾝﾀﾞ付け確
AMP の入出力確認
入力 : IC405-5pin
出力 : IC405-7pin
NG
IC405 のﾊﾝﾀﾞ付け確認
OK
本体 -MONITOR 間のｹｰﾌﾞﾙ
もしくは MONITOR の確認
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299