Sansui 6060 - 8-2. Block Diagram of Tuner Section; 8-3. PLL Block Diagram (IC HA1196)

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2SA733
2SB560
28C945
2801047
28C1364
28C1951
2SD438
ECB
28C1636
ECB
Circuit
%& This Protection (Relay) Circuit serves to protect spea-
kers when DC voltage appears at output of power
amplifier stage, resulting in relay being released.
When the DC voltage exceeds 2.5V, the arrows $f well,
Differentia
Amplifier
Value in (
7-3. Semiconductor
2SA628
2SA726
28C711
280738
28C1313
BCE
2SA765
2801445
2SD188
NF 3B;
Loop Gu
Driver
) shows voltage
28C735
HA1151
1
Hisr, 98
HA1137W
HA1196
i
3458 4 109
8
F-2647 POWER AMP.
Driver Tr.
jas
rrent VR
Tr. Driver Tr.
of #5050
—45A
182473D
EQA01-13R
EQAO1.24R
EQAQ1.25
at
VD-1212 or
DS-430 30D-2--. *
8. OPERATION BLOCK DIAGRAM
8-1. Block Diagram of Power AMP. & Protector Circuit
~F-2648 PROTECTOR CIRCUIT
ae Phase
cr
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|
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Compansation
RL601
L-CH
OUTPUT
To Speaker
—37V (—33V)*
R-CH ,
eae Amp. R-CH Speaker (Relay)
-
show the variation of voltage drop or increase.
When the DC voltage drops below —2.5V, the arrows
& f show the variation of voltage drop or increase as