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qg21
- 48 -
LEN/515EN
Q971
2
73 [Ves
|Ground =
|
| 74 |AVop
| +5V power supply
|
— | 5.0 |
| 75 |AVncr
| Reterence volage
|
— | 50 |
[76 [Nc
[Noconnecton
=|
— | 5.0 |
| 77 [Nc
___[Noconnection
|
— | 500 |
| ze [ind
[Initial vaweD
tC
ety |
[7a jinrtA
initial
vowed to |
[so jinitB |intialvaueB
tH)
Note 1:
Voltage measurements are with respect to ground,
with a voltmeter (Internal resistance
: 10M ohms.)
Note 2:
CQ-RD545/535LEN only
Note 3:
Except CQ-RD515EN
Note 4:
CQ-RD545/535/530LEN only
Note 5:
CQ-RD545/535/525LEN/525GLEN/515EN only
Note 6:
INTA~D (IC600) voltage.
[as [am [a |
} (1 pin)
(78 pin)
(79pin)
(80 pin)
conoosen | se [| © | 29 | 20
conoasieny | a | 0 | as |
conosoey |
| «2 | so | o0
conossin
[ae | 49
conossounf
ae | +9
conosoun]
aa | 50
conosisen
[ae | 50 a
Sws01
:
Preset 5 / B-SKIP / RANDOM
Switch
SW902 :
Preset 3 / TPS / SCAN Switch
SW903 :
Tape Eject / ILL Switch
Sws04 :
Tape PROG / STOP Switch
SWS906 :
Preset 4 / REPEAT Switch
SW907 :
Preset 1 / MTL / DISC Down Switch
Sws0s :
Preset 2 / DOLBY / DISC Up Switch
Swsg0oe :
TUNE Down / TRACK Down Switch
Sws911 : VOL Up Switch
SWw912 : VOL Down Switch
Sw913: ATT
Switch
Swoi4 :
TUNE Down / TRACK Down Switch
Sw916 : MODE Switch
SW917 : BAND Switch
Sw918 : SEL Switch
Sw919 : DISP Switch
Sw921
: PTY / MONO-LOC Switch
SW922 : AUX Switch
SW923 : AF / REG Switch
SW924 : TA Switch
Sw926 : POWER Switch
SW929 : HDB Switch
e / RDS Receiver with CD Changer Control
< Display Block >
m IC901
YEAMLC75854W
~—
MIC CNT
2
P. LED
|. R sensor power control
GILL
Green illumi. ON/OFF
~39|sEGs~39]LCD
segment
o~
~
(Connecting to ground)
lvop2__[Notused
[Do | LCD data output
1
| LCD data input
a
BTS
Rg a')
a1
o =)
Ow
Th
z
© lw
9°
PT
o np wo a
a N
:
iw} iw)
=
- = b N
IC BLOCK DIAGRAM
< Main Block 1/2>
e@ 1C270
YEAMTDA7384
: <CQ-RD545/535/525LEN/525GLEN >
YEAMTDA7385
: <CQ-RD530LEN/520GLEN/515EN >
Veer
Voce
stpByY (4)
MUTE
(2)
IN1
IN2 (12)
IN3_ (14)
IN4 (15)
SVR
AC
TAB
SIG
GND
GND
e@ 1C400
YEAMLC72146
[Kh]
-
Swallow Counter
ms ©—L
Dol
n g
tL
H-@ rerne
Vss (8)
=
AM
IN ©
So
12 bits ied
Ms
eee
(3) LCTR/1-7
CE
@
-
a
Universal
de
Counter
DI B)
C2B
Data Shift Register
G e aa
"
DO
6)
AOUT
Vpp
6)
ae
Vss @
Reset
A—O—-00-©)}_©)}-_—-®
VO-1
VO-2
VO-3
VO-4
VO-5
0-6
0-7
e 1C961
YEAMDA7330BD
vcc
2nd ORDER
ANTIALIAS
|
]
FILTER
MP.
8th ORDER
SC BANDPASS
FILTER
ON/OFF
OSCILLATOR
& DIVIDER
CLOCK
RECOVERY
PLL
57KHz
PLL
1 1875KHz
BIPHASE
IOECODER
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