JVC HA-W500RF - Service Manual

SERVICE MANUAL
CORDLESS FM STEREO HEADPHONES
No.70270
Sep. 2002
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
HA-W500RF (EG)/(EK)
HA-W500RF (EG)/(EK)
Specifications
* Design and specifications subject to change without notice.
Transmitter (J22121-001)
Power requirements : DC 9 V (with the exclusive AC
adaptor J47126-001(EG Model)
/J47127-001(EK Model))
Audio input ter minal : 3.5 mm dia. stereo mini plug
Input impedance : 25 k
Reference input level : 300 mV
Dimensions : 100(W) x 100(D) x 106(H) mm
(3-15/16" x 3-15/16" x 4-3/16")
(Including antenna)
Mass
: 115 (4.1 oz)
(Without connection cord and AC
adaptor)
Provided Accessories
Instructions x 1
AC adaptor x 1
Connection cord x 1 (3.5 mm dia. stereo mini jack-
RCA pin plug x 2 : 0.1 m (0.3 ft))
Plug adaptor x 1 (converts 3.5 mm dia. stereo
mini plug to a 6.3 mm dia. standar d
stereo phone plug)
General Specifications
System : Radio Frequency (UHF stereo)
Modulation : Frequency modulation
Carrier frequency : 863-865 MHz
Usable area
(distance to reach) : Approx. 100m (328 ft) : using
JVC measurements systems
Frequency response : 30 Hz-15,000 Hz
Distortion : Less than 4 % (at 1 kHz)
Contents
Headphones (HA-W500RF)
Power requirements : Rechargeable
Ni-Cd batter y (1.2 V) x 2
Battery running time : 20 hours
(When charged for 24 hours)
Mass : 280
(9.9 oz)
(With installed rechargeable
Ni-Cd batter y x 2)
Specifications ------------ Front cover
1. Disassembly ------------------------- 3
2. Schematic Diagram ---------------- 4
3. Measurement Condition --------- 5
4. Print Circuit Board ----------------- 5
5. Wiring Diagram --------------------- 7
6. Block View Inside IC -------------- 7
7. Block Diagram ---------------------- 8
8. Electric Parts List ------------------ 8
9. Exploded view ----------------------- 9
10 .Mechanical Parts List ------------ 9
11. Packing Method ------------------ 10
12. Packing Materials Parts List - 10
13. Accessories List ----------------- 10