Philips N4504/00/15 Serviceanleitung

Recorders N4504/00/15
Servics
Service
Service
Safety regulations require that the
set be restored to its original condi-
tion and that parts which are
identical with those specified, be
Subject to modification
4822 726 11668
Printed in The Netherlands
used.
818SA2
CONTENTS
Page Page
Technical specification 1 List of mechanical parts 12
Connections and controls 2 Maintenance 12
inputs and outputs 3 Electrical measurements and adjustments 12
Operation of the control section 3 Circuit diagram 14
Decasing 6 Wiring diagram 16
Repair hints 6 List of electrical parts 18
Mechanical adjustments and checks Fs Printed circuit boards 19
Exploded view 11 DNL unit 19
TECHNICAL SPECIFICATION
Mains voltages : 110-127-220-240 volts Input sensitivities:
Mains frequency : 50-60 Hz (switch-over Micro 0.2 oe KO
not necessary) Line : 100 mV/1 MQ (3,5)
" 2mV/20 k(Q) (1,4)
Power consumption : approx. 30 W Output voltages:
Number of tracks : 4 Line : 1V/10 kQ) (3,5)
Max. reel diameter : 18 cm Monitor : TV/S kQ
Number of heads
: 3. (1 recording, 1 playback
Output impedance
and 1 erase head) Headphone : 400 0
Number of motors
: 3 (1 for capstan drive,
Frequency range
2 for driving the reel (within 7 dB)
ae 9.5 cm/s ; 35-18,000 Hz
Winding time for an 18 cm 19 cm/s - 35-25,000 Hz
reel with LP tape ; ;
(540 m) -< 180s Signal-to-noise ratio :
= according to DIN 45,500 : > 58 dB
Tape speeds . 4.75 cm/s+1% Neen ee? es
9.5 cm/s + 1% Erase frequency : 100 KHz_+ 10%
19 cm/s+1% Dimensions : 415x425x185 mm
Wow and flutter at: Weight : approx. 8.2 kg
4.75 cm/s < 0.2%
9.5 cm/s < 0.2%
19 cm/s < 0.15 %
Documentiton fechmeue Service Dokumentation Documentazione
di Service stu. te ithe Manual
te Servicio Manual ce Servicio
PHILIPS