Denon PMA-725R - PARTS IDENTIFICATION AND SCHEMATICS; Semiconductor Identification

Gl PMA-9S25R/725R
SEMICONDUCTORS
e IC’s
uPC5023CS-064 (IC401,402)
Contents
Name Contents
_{2ZDi__| Control signal stabiliser input
ZDO_| Control signal stabiliser output
Comparator output
PH-| | Peak hold input
Comparator input (-)
14 PHO_ | Peak hold output
Comparator input (+)
EG |
Floating common
15 EAEO | Controller gain setting
16 EACO | Control signal output
Comparator input (+)
a |
17 EA+! | Reference voltage
Comparator input (-)
——+
18 EA-1 | Comparator gain setting
Comparator output
19 EAO | Comparator output
+ Power supply
D10 [1 | [42] D9
teob11
[2
|
141]
D8
MUTE/STANDBY
LED
Indication
revwore
[o]
or
2
[ren
|
o
[ue
F
|
3
|
tavmrz
|
0
|
PowerConmol
(REMOTE
PowerONOFF)
Ti
Vdisp/RA1
[4
|
[39]
06
|
4
|
vdepmar
|
1
|
reo
sy
Gs
Ps
[aw
[0
|
Roi
(6
|
D4
|_s
|
ror
|
©
|
sasing Contr!
Power
ON-OFF.
Function
Shiting.
MUTING)
Li
R02
[36]
03
|.
7
|r
|
o
[spacomi
C™—“*‘“*™*sé*dCSC=SCSd
ros
[8
|
Tas]
02
| 8 jroo |_|
SPB
Conor
H
R10
|
34]
D
;
_
L9
|
"
[at
|
0
|
Keyscan
strobe
=
R11
[70]
[33]
Do
[a2
|
[ow
|
ar2
[11]
vec
pris
|
R13 [12] [31] osc2
Reo
[13]
130}
OSc1
Key
scan
receive
rai [14] [29] Test
R22
[15
| |
28]
RESET
[Fo
-
R23
[16
|
AVSS
—
owe
>
INTO/R32 fr Breakdown detect input
R30
RA3/AN3
|
INTIS
|
Reméte
control
signal
decoding
input
Rat
[18
RA2/AN2
[eno
|
INTO/R32
[24]
R41/AN1
[Aves
|
INTi/R33 [20] | 23] R40/ANO
ano (27 | [22] avec
< oo
NOP
Discrimination post by user's genre
fe) & i
f
:
z ¢
4
z
eller Fill Oscillator 4MHz; External
Colles Fill Oscillator 4MHz; Extemal
20 V- — Power supply
HD404304A13P Terminal Function
| 1 [oo jo | K
TAPE-2 Control
TAPE-1 Control
AUX Control
TUNER Control
Mutually reset;
f= felelel ele lel ele lel ele ee Ee PEE EEE EE EEE EEE
eres
14
CD Control
PHONO Control