Technics SA-CH750

SVI31020
BA4558F TI 10503
ee FAN POWER AMP
2 a 8 9 12
r ‘easily Om
Drive Power 4
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SPEAKERS
M521BAL |
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HEADPHONES AMP x }
3
201,252 |0203,251 301,303 ea pe ots
(0202) (9204) (9302) S) Leh 5 |
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SURROUND
SPEAKERS
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cess |
a oJ
re a ae B29 6
Y
For (GC, GN) areas. a
La42e2
For(ec, GN areas. POWER AMP (SURROUND)
| 0401 ----4
2
: (0402) ! =, av Ve
foo | T T aaeid ~ (7) sty sos SURROUND
| | 1 | ‘a eles i ) SPEAKERS I
Switching +4 1 |
' surround: ' un oO a)
| on /off | 15 [4 }lo
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SW: TCHING
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JK201N/3)
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ct
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| RL702 \
0704,801
|
Relay
t
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| drive |
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| 0154 D153 BELO! |
¢8) Regulator |
| seen] 0701, 0715 proI~704 |
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5 Fe ee ee ad 0702, D716 |
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;
|
indi P _ of |
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0703,0714 0705,706 \ !
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eo ak 7 [ Reauiator | | l
>: FM SIGNAL I |
> = AM(LW/MWISIGNAL Bon
|
>: FM OSC SIGNAL |
1 |e!
>
AM(LW/MW)
OSC
SIGNAL
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|
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> : SURROUND SP DRIVE SIGNAL | ¢ o719~72) It |
For
(GC,GNJareas.
|
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—~31-
SA-CH750 SA-CH750
m@ FUNCTION OF IC TERMINALS
©1C601 (M38102M5147S)
ey ee
Name
Voo ——
Terminal
Name
e [= 0
B.DATA OUT O 27 RESET No use
re | semour | © [ewdaaer | [a] on 7
No use
| Bus data input 29 XC OUT
|| souk | vl Bus clock input 30 X IN
+—
4.194304 oscillator
f
:
peo
REAR VR. b | Rotary encoder input (for REAR) X OUT
vO
REAR VR. a | Rotary encoder input (for REAR) 32 Vss es Power supply (GND)
11 PLL DATAIN | Serial data input for PLL tuner 33 K3 bee y Key input
12 PLLCE O Serial chip enable output for PLL 34 K2 ae Key input
tuner
36 KO eae Key input
14 DATA oO Data for M50253
fa7| ze | o | Digit 12 & key scan (lock switch)
Rotary encoder input
CENTERVA.b) | | Gor CENTER) 38 11G i i) Digit 11 (No use) & RESET
Rotary encoder input 39 10G 03 Digit 10 (No use) & RESET
16 |CENTERVR.a (for CENTER)
17 MAIN VR. b | Rotary encoder input (for MAIN)
«[ [olome _—|
18 MAIN VR. a | Rotary encoder input (for MAIN)
42 KS3/7G iors Digit 7 & key scan
|: Starting clock adjustment
19 TOUT VO O: 131 072 kHz (POWER OFF) 43 KS4/6G coal Digit 6 & key scan
Malfunction detection
(POWER ON) 44 KS5/5G Oo Digit 5 & key scan
20 Data output for LC7536 & PLL 45 KS6/4G oO Digit 4 & key scan
tuner
46 KS7/3G oO Digit 3 & key scan
24 Clock output for C7536 & PLL
tuner 47 KS8/2G oO Digit 2 & key scan
22 Strobing for LC7536 (switched) 48 KS9/1G O Digit 1 & key scan
49 S1
q O Segment output
63 $15
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