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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Item
Ch
Frequency (MHz)
Status
Adj. or Check
Terminal
Adj. Point
Adj.Range
Condition
1. PD Voltage
1
E T TA
:435.05 :435.05 :435.05
Rx and Tx
Rx : 0.8 � 1.2V Check TP2 -Tx : 1.0 � 1.4V
2. Reference Frecuency
1
E T TA
:435.05 :435.05 :435.05
Tx
Adj.
ANT
TC1
± 100Hz
3. High Power output.
2
E T TA
:435.05 :445.05 :445.05
Tx
Ad j.
ANT
VR1
1.0 ± 0.05W
4. High Power current
2
E T TA
:435.05 :445.05 :445.05
Tx
Check
DC Jack
--
less than 0.6A
5. Low Power output
3
E T TA
:435.05 :445.05 :445.05
Tx
Check
ANT
--
0.1 � 0.25W
6. Sensitivity
5
E T TA
:435.05 :445.05 :445.05
Rx
A dj.
SP Jack
TC2 and TC3
less than -7.0dB
The sensitivity must be adjusted to the best.
7. S-meter (1)
7
E T TA
:435.05 :445.05 :445.05
Rx
A dj.
--
FUNC Key
--
RF sig. level : 0dBu
8. S-meter (5)
8
E T TA
:435.05 :445.05 :445.05
Rx
A dj.
--
FUNC Key
--
RF sig. level : 20dBu
9. Mic Deviation
9
E T TA
:435.05 :445.05 :445.05
Tx
Ad j.
ANT
VR2
4.5 ± 0.1KHz
AF sig. : 1KHz / 50mVrms AF Filter : OFF-20KHz (at MT2605)
10. Tone Deviation
13
E T TA
:435.05 :445.05 :445.05
Tx
Check
ANT
--
0.6 � 1.2KHz
AF Filter : OFF-3KHz (at MT2605)
16. Tone burst Deviation
16
E T TA
:435.05 :445.05 :445.05
Tx
Check
ANT
--
2.2 � 3.0KHz
AF Filter : OFF-20KHz (at MT2605)
17. Aging test
17
E T TA
:435.50 :445.50 :445.50
Tx and Rx
Using the aging test tool.
22
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