Sanyo DC D30 - Block Diagram(Pre & Main Amp)

iC BLOCK DIAGRAM (TAPE DECK) IC BLOCK DIAGRAM (AMPLIFIER)
1€351 HA12136A (Dolby-B Noise Reduction System) 1€370 LA3246 (Pre & Mixing Amplifier 1C500 pPD75516GF-391-3B9 (Micro Processor)
a z 2 ° | De We IN Se NS AD ‘Key Jp a ee
og 7 o>. UF O | 2 Avref Tt Reference Voltage of AD
uw 2 o wo uw) feces = rg Ne ho Se ae
Wor wor ner ure MEO MefMr (MH File Pa Pv D(vPP) [1 [eonnect a0 for PROM
4)
(2)
(9)
Ps
pPuLL
P11
CT
CO
Set
Pull
up
Signal
of
AVref
Backup
Time
:
LOW
p 6 fu/R —s—sd| SO CSL Selection Control for BA3826S
| 7 ~{BAND RESET —s [| Os Reset Control for BA3826S
| 8 ~=[BANDA | 1/0 id Band Pass A Control of BA3826S
| 9 |[BANDB {| 1/0 Band Pass B Control of BA3826S
| 10 [Banoc CT S/O Band Pass C Control of BA38265
Pir [pass dT OC BASS Xpander Control Signal (LED)
[12 [DOsURR ON/OFF | O___| Dolby Surround Control Signal (LED)
P13 [REAR VOL UP [| OO Rear Volume Up Signal
| 14 [REAR VOL DOWN | O __|[ Rear Volume Down Signal
pis [ck7s22_ dT SOs Equalizer Clock of LC7522,— Cd
1 Malor NoKign NIA Mik
ouTt SW" OUT! OUT Age NG. t= Not Used (VSS ee
18 Poa7see. |, | Data Signal to LC7522 H
P19 [cK7522, CT Od Clock Signalto Lc7522,— H
20> ENG = Not Used (058) ee
23
24
25
26
27
28
29
30
31
32
FUNC B
FUNC A
DO ON/OFF
DO B/C [| | Dolby B/C Control Signal HBC
SPEED [| OT High Speed Signal for Motor HH: HIGH
PLUNGER 0-5 pphunger ON Signal — <=
ee cel
I
1C374 CXA1298AP (Equalizer Amplifier for Record)
REC IN
REC OUT (2)
LINE OUT (¢)
KARAOKE Not Used (VSS)
AMSS Not Used (VSS
PACK A | t__| Pack A Detection Signal L:ON
STOP SW | |__| Stop Switch Detection Signal L:ON
1€371 MLC4066B (Quad Electronic Switch)
VDD CNT] CONT4 =IN4) GUT4 OUTS INS
33__| VSS rae nes If GROUNU et Se ee ee ki Se ae on ADEE
wdere balcead deseteunh Pas 34. |G REV | |__| Anti Record Detection Signal for Reverse Direction L:ON
35 | G FWO |__| ___| Anti Record Detection Signa! for Forward Direction L:ON
36_| PACK B [| |__| Pack B Detection Signal L:ON
IN/CUT OUT/IN 37
38
39
PLAY SW [| tsi Play Switch Detection Signal C—“‘“‘;‘*rLSC‘ ON
PULL UP 2 | O _—'|Set Pull up Signal of AVref_ H
MOTOR Oh Mover ON Signals —— 2 # == =
SP RELAY | 0 | Speaker Relay ON Signal —SSS—S—~—~—S—SCSCS
-20dB MUTE [| _O _|-20dB Muting Signal C—“‘“‘;CCC‘*”
~oo
MUTE
[|
O
_i([-
Muting
Signal
CisssCsC‘CsCsCizr
POWER ON
VOL UP
VOL DOWN
CNT
SCONTROL |
GNC C)
acc tc (8)
(SPEED)
t
42
43
NORM/HIGH
NORM/C 10
IN! OUT! OUT2 IN2 CNT2 CNT3. VSS
CONTROL] SWITCH
O=VSS__[OFF
1=voo__ [oN
45
REEL B Reel B Rotate Detection Signal (Edge
47 REEL A Reel A Rotate Detection Signal (Edge)
1€375 yPC1330H (2-ch Head Select Switch ) AMSS
|
| OT
| OT
a
ae
| | [input of Music Brank Brank LO
| ti infrared Ray Receiving (Remocon) Signal
| | | Micon Data from CT Unit
foe ee NCE USCA (WSS) «2° 5h
ag lS Clock Troma T Ug ce
|___t TAC ON/OFF Detection Signal H: ON
pean | POU MO et
ie = Na]
|
et |
berets a
fiom Cowen
Bae
Hi 50s 4]
ieoan Ord
Ons
|
50 CT DATA
51 NC
52 CT CLK
53 P DOWN
54
INVERTOR
C
T2
L
:
L
Les
ACTIV : Active Level P OFF : Power Off Time Level
56
ESET
USY
$c
EV IND
/2 IND
62
63
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Wiwnin wn WlOIN w
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