JVC HA-W500RF Service Manual

HA-W500RF (EG)/(EK)
8 (No.70270)
7.Block Diagram
8.Electric Parts List
A Item No. Parts No. Parts Name Description
J22121-001 Transmitter Unit
A Item No. Parts No. Parts Name Description
A J22133-001 Main P.C.B Ass'y Adjusted
J22134-001 Charge P.C.B Ass'y
D2 J47138-001 LED Power and charge Indicator
VR1 J47139-001 Variable Resistor Volume control, 100 k X 2
VR2 J47140-001 Variable Resistor Tuning control, 100 k X 1
A SW1 J47145-001 Power Switch Slide
A JK1 J47141-001 Charge Jack
In case of some problem arise in this transmitter unit, have to change the transmitter unit
itself, due to avoid the law of radio regulation.
Parts marked (A ) ave safety parts. When replacing, be sure to use the specified one.
Parts marked (A ) are safety parts. When replacing, be sure to use the specified one.
Receiver (Headphones)
Transmitter
Receiver (Headphones)
ANT
FILTER
UHF
MODULE
ANT
IF
VB
VT
18
FM STEREO RADIO
IC2:CXA1538M
RF IN
OSC RF
Rch
AF OUT
Lch
AF OUT
DISCRIFE OUTIF INVcc
26
16
13
HEADPHONE
AMP
IC3:LM4809
1
7
Rch OUT
Lch OUT
4
22 20
TUNING
VR2
8
2
6
POWER INDICATOR
LED RED
Ni-Cd Battery
(1.2V) x 2
POWER
SW1
CHARGE INDICATOR
LED GREEN
COMPARATOR
IC4:LM393
NJM2903
CHARGE INPUT
ON
OFF
ON
OFF
-
5
6
7
A
VOLUME
VR1

JVC HA-W500RF Specifications

General

Brand	JVC
Model	HA-W500RF
Category	Headphone
Language	English