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There are currently no product reviews.
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The purchased manual is an high quality scan of the original Philips paper-based Service Manual. I am very satisfied!
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The purchased manual is an scan of the original Panasonic paper-based Service Manual. Unfortunately the contrast is not perfect, but I am satisfied anyway!
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The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
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It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
Technical ManuaI
L50A
El 0 INPUT v 2.5RlOW 57917 LF
MF
HF
N50 SCHEMATIC
SYSTEM COMPONENTS:
LOW FREQUENCY DRIVER: Cone Kit: Nom. Impedance: Dynamic Test Input V: Sweep Frequency Hz: D.C. Resistance Ohms: 127H C8R127A 8 Ohm 5 30-1200 4.8 minimum 5.6 maximum .044�
MID RANGE DRIVER (Cont�d) Additional Parts Currently Available*: Dome: 51686 Mounting Gasket: 21771 Trim Gasket: 29931 HIGH FREQUENCY DRIVER: LE26 Diaphragm Kit: DBRLE26 Nom. Impedance: 8 Ohm
Gap Gauge: Notes: If Not Serviceable, Replace With: 125HR Visual Change: Yes Baffle Modification: No Exact Acoustic Replacement: No. Slightly different. Replace both units in a stereo pair. Additional Parts Currently Available*: Dome: 50201 Terminal Board: 52348 Mounting Gasket: 52089 Trim Gasket: 52315 MID RANGE DRIVER: LE5-10 Cone Kit: C8RLE510 Nom. Impedance: 8 Ohm Dynamic Test Input V: 4 Sweep Frequency Hz: 75-3099 D.C. Resistance Ohms: 4.9 minimum _A
Dynamic Test Input V: Sweep Frequency Hz: D.C. Resistance Ohms:
Gap Gauge: Notes: If Not Serviceable, Replace With: 035TiA Visual Change: Yes Baffle Modification: Yes Exact Acoustic Replacement: No. Use as last resort. Replace both units in a stereo pair. Additional Parts Currently Available*: Trim Ring: 57732 Mounting Gasket: 50949-02 Dome: 21606
3 500-1200 3.4 minimum 4.3 maximum .029� Plastic Flange
SYSTEM SPECIFICATIONS:
Nominal Impedance: 8 Ohm Max Recommended Amp Power: 209 Watts Crossover Frequencies: 800 Hz, 3906 Hz Sensitivity: 88dB (1 Watt @ 1 Meter) Enclosure Dim: 24-1/2�x 14-l/4� x 12-11/32� D 622mm x 362mm x 314mm Shipping Weight: 47 Ibs. - 21 kg. Additional Parts Currently Available*: Binding Posts: Red: 56131 Black: 56130
4f94 REVB
0
Gap Gauge: Notes: If Not Serviceable, Replace With: Currently Available or LE5- I2 Visual Change: Yes Baffle Modification: No Exact Acoustic Replacement: Yes
6.1 maxrmum .040�
*Other parts may also be available. Check with JBL for details.
JBL Consumer Products, Inc., 80 Crossways Park West, Woodbury, New York 11797
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