Panasonic RX-5080 - IC Block Diagram

Notes:
1. S1-1~1-10: Record/Playback switch in ‘‘Playback”’ position.
2. S2-1~2-4: — Function switch in ‘‘TAPE”’ position.
(1... LINE IN, 2... RADIO, 3... TAPE)
3. S3-1~3-4: | Mode/Beat Proof switch in “AMBIENCE/II’’
. Important safety notice
The shaded area on this schematic diagram incorporates special
features important for protection from fire and electrical shock
position. hazards.
(1... AMBIENCE/H, 2... STEREO/I, When servicing it is essential that only manufacturer’s specified
3...MONO/I) parts be used for the critical components in the shaded areas of
4. $4-1~4-4: Tape select switch in."‘ METAL” position.
(1...METAL,2...CrO2,3... NORMAL)
5. S5-2~5-4: | Band switch in ‘‘FM” position.
(1...FM,2...AM)
the schematic.
6. $7, 8: Motor/Play switch in ‘“‘“OFF”’ position.
7. VR1: Balance control VR.
8. VR2: Tone control VR.
9. VR3: Volume control VR.
10. VR4: VCO oscillator frequency adjustment VR.
11. VRS: LED meter adjustment VR.
12. VRE: Bias current adjustment VR.
13. The mark (~p) shows test point e.g. ~~” =test point 1.
14. DC voitage measurement are taken with electronics voltmeter
from negative terminal of battery.
.....FM position, ( )... AM position,
[ |]... Recording position.
15. Battery current: Nosignal ....................0005. 122 mA
Maximum output (radio) .............. 1.18A
Maximum output (tape) ............... 1.12A
IC BLOCK DIAGRAM
IC1 AN7213
Cathode
Anode
D1~3, 5~7,9~11, 18
IC2 AN7223 ea
H
AM FM
> iF Amp
iu {
|
H
IN
IC7 RVIBA6154
OUT
Vel
Ve2
Vc3
Ved
GND
ve5
AMP
IN
Vcc
16
|