Marantz 74 CD38 - Page 27

SERVO CIRCUIT DIAGRAM
CHECK OF PHOTODIODES
WITHIR LED OF REMOTE CONTROL
5VPLAYMODE
oV STOP
1052 - 6
o> 2025
22uF/40V
. CONN. 1052 TO CDM VIA FLEXFOIL
1 2
3108_0321_2_R
PCS 60 983
26
TO DECODER CIRCUIT
1907 | 2009 | 2008
3010 x I 22nF 22uF/40V
(iM)
1000
8,46MHz 3011
-= [10k j 7000
28 13 TDA1301
19
XTAL
OSCILLATOR
CONTROL ie
FUNCTION
is outPuT
al STAGES
MPROC
INTERFACE
2 16 15 1 27) 426 «| 25
CONTROL PART
14
3015 | 3014 | 3013
BA E
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y y
A fh f
oT NRST SIDA SICL SILD
Ye
TO IC 7100
TO IC 7700
ON DECODER
CIRCUIT ON DECODER
CIRCUIT
13 14
26
13
14
15
~
|
1070 - 6 | SLOUT
1070 - 54 GND
16
3108_0321_2.B
(000 E10
BRR BRR
were’
maaan
= = OX,
SSSSRRRRASRRR
MMT Coo TS OOt- HK TTIOOaToOx*
MAAD
Becaueases
ya TOM nangnaears PEE WHO:
NNVOAAUAVOND RAVGOOSo;
1
TPWWIVOCOMTTNTNTNTOOR
REUR SSSR EDeEeD
8
aaa
B88e55 apeee2
=
I =
3858
So2S525
8 mmm,
288 fan —
BESSEEREERSES
etait
BRaRE
FA or
ONO LUGWUUATONAUNSNS Saw oOo
FEMMDDVDVDCONOWOVCSCUMMIOOAARK
quneuaes
8
“9
EEEEREERE
QuTwOrtz=a=!
AODRORGaD>®:
gg i} LN
M4
eyepattern
POS
if la aN aS aa av ar avav ara arara
roar
O50] 2,5V Fr RRPOQQYEQYHOYS OX
0°
SORES EEK
0,5us/DIV ~OCCCOOOOOOOOO
STOP MODE
Xe} 80mV
0,5us/DIV
ACTIVITY IN PLAY MODE
ACTIVITY DURING PLAY
ACTIVITY DURING PLAY
|
STOP
MODE
Cx.)
s
20mV
ie
ie
ae
0,5us/DIV
ACTIVITY
IN
PLAY
MODE
SERVICE
MODE
0
SL OUT: -3.5V
SLIN: 4+3.5V
+5V STOP MODE
OV PLAY MODE
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