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參數(shù)資料
| 型號： | KA22296 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Playback / Record PRE AMP FOR DOUBLE DECK(重放/錄音前置放大器) |
| 中文描述： | 播放/錄音前級的雙層（重放/錄音前置放大器） |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 157K |
| 代理商： | KA22296 |
KA22296 DOUBLE DECK SYSTEM FOR RADIO CASSETTE
3. Head Connection Method
3-1 Tape Head connecting method
By the virtue of NAB amplifier
’
s input construction layout of this product, the input voltage bias is
systemised to be supplied from an outside source and head
’
s connection follow below
constructed plan / layout
’
s style.
In employing record
signal, the A/B switch
input of pin 16 must be turned into B deck
mode. ( It only applies to the above situation ). To suite the user
’
s conviences A and B
’
s extremeties
are designed to be replaced. If the record OSC
’
s ingredients exist in play back input, it will have
damaging effect within the KA22296. That is why precautions are neccessary. And within recording output
pin the ALC DET is internally connected, if recording AC bias appears in this terminal the ALC moves
distortly, use the trap to make the recording output terminal bias as small as possible and choose the
appropriate OSC frequency for the trap. Also at the play mode, since the recording terminal
’
s output
D.C is bound by 2.1V and abandon it.
N : Use/ apply the above switch if OSC frequency find within record mode at the system for mation.
Fig 3 - 1
2
3
1
4
6
15
16
7
21
23
*N
P R H
OSC
VCC
REC
+
+
+
+
+
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