Technics SA-5170 - Block Diagrams

m BLOCK DIAGRAMS OF INTEGRATED CIRCUITS
FM-IF
INPUT
3rd EMITTER 4th
i IF AMP FOLLOWER ts
EMITTER
Ist 2nd
IF AMP a IF AMP = FOLLOWER
POWER SUPPLY
1C101 (AN217)
FM 2 STEPS IF AMPLIFIER & AM CIRCUIT
POWER
SUPPLY
1C102 (AN377)
FM IF AMPLIFIER & DETECTOR CIRCUIT
GROUND EMITTER
EMITTER
1C401, 402 (SVITA7129P)
EQUALIZER AMPLIFIER CIRCUIT
[vl] OLLS-VS
VCO
ADJUSTMENT
Pr-O
—-
—-
—
44)
-
—
-—-
—
-—
Hi
4
|
76kHz
38kHz
19kHz
|
COMPOSITE VOLTAGE 19kHz
SIGNAL
INPUT
(|
AF
AMP
DIVIDER
DIVIDER
(12)
19kHz
OUTPUT
|
|
|
|
|
PHASE
TRIsceR|
19kHz
|
DETECTOR
TRIGGER
38kHz
[DIVIDER
|
=
19kHz
;
© — |
y
LOCKED
}-28kHz
|
| DETECTOR Vee |
|
{
|
L————~@>-@)-
—©-
~0-{)-
—
---©---
-----
-~)---4
(L) (R) : STEREO GROUND POWER
OUTPUT INDICATOR SUPPLY
1C301 (AN363)
PLL FM MULTIPLEX CIRCUIT
O<iD> 00<E> €0-< E> C0 00 <a a
@ TERMINAL GUIDE
2SA721 , 2SA954
28C828 , 2SC2003
2SC1047, 2SC1675
25C945
2SD586 | -2sci398 si