Sony XR-340 Service Manual page 17

5.5. SCHEMATIC DIAGRAM —MAIN SECTION—
1 2 3 4
Note:
A ® Allcapacitors are in uF unless otherwise noted. pF: zuF SOWV
or less are not indicated except for electrolytics and tantalums.
@ Ail resistors are in Q and 1/4 W or less unless otherwise
specified.
e % : indicates tolerance.
e 8 6[(B+} : B+ Line
B ¢ [_] : adjustment for repair.
@ Power voltage is dc 14.4V and fed with regulated dc power
supply from BATT and ACC terminals.
@ Voltage and waveforms are dc with respect to ground under
no-signal (detuned) conditions.
® no mark: FM
Cc ( ): AM
< >: PB
e Voltages are taken with a VOM (Input Impedance 10MQ).
Voltage variations may be noted due to normal production
tolerances.
® Waveforms are taken with a oscilloscope.
D Voltage variations may be noted due to normal production
tolerances.
® Signal path.
o> :FM
S> :PB
E
F
G
H
|
J rs ete een
[EQUALIZER BOARD]
| 1€401
HA12164 XR-340)
HA12174 KR-430)
£G AMP
|
I
HPSO1 |
PLAYBACK HEADS
L ae
t
Gade
M ae
RV401
aOLBY
LEVEL
&-CH)
N
iy
os = e a c h . "athe ela sacle aed a viata ame.
Q
Pp _
Q
@ Refer to page 49 for IC Block Diagrams.
6 7 8 93 1(
$902
Bie repens
ROTARY SWITCH
ee
CSO}
$00p
R408
cane ane rene neh 22000
22K 0.5K
07 SbO 0, 5X;
Ces