Audio Adjustment - Panasonic Rx-5500Ls Serviceanleitung
Verfügbare Sprachen
Verfügbare Sprachen
AUDIO
ADJUSTMENT
MEASUREMENT
SPECIFICATION
INPUT
ITEM
POINT
Bias oscillation
301
frequency
301
Erase
current
10
(Lch)
(Rch)
Bias
current
(Earth)
QZZCFM
DIN Jack
Playback level
(315Hz, OdB)
Playback
QZZCFM
frequency
(315 Hz, 4kHz,
response
- 20dB)
(NORMAL)
101
Playback
f = 10kHz,
frequency
-30dB
response (Croa)
REC
CP12 (5) (L-ch)
EXT MIC
CP12 (4) (Rch)
f = I kHz,
Overall gain
— 40dB
Playback. ..
DIN Jack
u LED METER ADJUSTMENTS
A. Battery check.
I. SupplyDC9.2Vthrough the DCIN jack.
2. Set the unit into playback mode.
3. Adjust VR452so that the 4th LEDfrom left begins
to illuminate.
ADJUSTMENT PARTS LOCATION
LED METER
CIRCUIT
BOARD
FM STEREO EYE
LED
METER
AUDIO CIRCUIT
BOARD
CP12
000000
[TONE CIRCUIT
BOARDI
VR33'
d
VRE3
Fig. 13
ADJUSTMENT
REMARKS
POINT
68 kHz ±
Record
mode
0.5kHz
L301
65+3 mV
Record
mode
VR301
(Use Croa tape)
4+02
VR302 (Lch)
Record
mode
-0.1
VR303 (Rch)
(Use Cr02 tape)
VR106 (Lch)
Playback mode
0.42±0.02V
VR206 (Rch)
315Hz—OdB
VR105 (Lch)
Playback mode
Tape selector... NORMAL
VR205 (Rch)
1±0.5dB
Playback mode
Tape selector.. .Cr02
VR108 (Lch)
OdB = output
level when the tape
-4±0.5dB
VR208 (Rch)
selector is set into normal position.
Place UNIT into
record
l.
and tape selector to normal.
Supply I kHz ( —40dB) from
2.
AF oscillator
to EXT. MIC.
3.
Adjust REC LEVEL until
REC...O.54mV
VR107 (Lch)
monitor
level at CP12
Playback....
VR207 (Rch)
@ becomes 0.54 mV.
-100±5mV
Playback recorded tape, and
4.
make sure the value at DIN
on electronics
voltmeter
becomes
100 mV ± 5 mV.
B.
Level check.
1. Supply DC13.5V through the DC IN jack.
2. Playbacka tone for standardlevelcheckof test tape
(QZZCFM).
3. Adjust VR351(Lch), VR451(Rch) so that the 5th
LED from left begins to illuminate.
MW
ANT
FM OET
FM DET
'06 MHz
90MHz
FM OSC
IOS MHz
FM
1st
'0-7
MHz
VRtæ
FM OSC
.SMHz
VR,t7
LW OSC
285 kHz
csc
145 kHt
to. 7 MHz
72
AM
MW
OSC
550kHz
Jp29
(RADIO CIRCUIT BOAROI
Fig. 14
RX-5500LS
RX-5500LS
ELECTRICAL
E47, 48
ESO
E24
E24E21
E14E15
€17
E23
EIS
mode,
and
Ell—'
E49 & E56
Fig. 15
E47
49
E47
LW
ANT
45 kHz
MW
ANT
'SOOkHz
SW ANT
IEMHz
CTS
SW
ANT
S.9MHz
L3
Fig. 17
LW ANT
285kHz
E51
E52
MW OSC
15C0kHz
sw
osc
'8MHz
sw
osc
5.9MHz
AM
2na
E50
Fig • 18
Cj2]
PARTS
LOCATION
E19
42|
E56
E341
E261
—E
55
€421
55
E61
421?
€311
€43, 44
45
¯
€391
Fig. 16
421
11
47 & 49
E3, 57
& 53
ES3
Fig. 19
6
E6.l
& E62
E
E6-3
€64
21
€421
331
3.57
& 58
E53
[$31
