Denon DRM-800A - Schematic Diagram

I 1 I 2 I
I SCHEMATIC DIAGRAM OF POWER & LOGIC SECTION I
3 4
4U-1817-2 METER PWB
FK801: FIP98EM8
SW813
REC
0813
0801 •..•..815.819.824 155270,.1,
SW809 SW8~
PL..••y 0809 FF 0805
swaOl
REW
0801
-'-'
u:::u:
j)G
!;
J;~~~:0)$tii;)1S8
•••••••• T
21)(2(j(19}(18}(17}(16}(1!SX14}(t5}(12}( 11XtO}(9 }(eX7 }(6}(5)( 4 XJX2)( 1
3.ev
JUl.JL .•OV
50 58 \
II
F1
1
-
\
PLA
~"
PLA
'"
I--
~
R922 ••,470
R923 ••• 470
~
R925 ... 470
I
TR90B TR907
DTC124XS DTC124XS
~-
0924
155270,.1,
~~
TR916 : DTC124ES
::~
56 61
57
u '--
58
59
V REF OV
VLD -30V
510 CAM F
511 CAM R
~PH 0 REEL F
iPH1 REELR
~PH2!11 PLYSP
2 PH3
'" T9
t;- T8
JUl.JL 3.8V
a -JOV
~ 17 1G--7G
T6 1 G
o T5 2G
~ T4 3G
T3 4G
T2 5G
T 1 41 6G
TO 7G
RESET
P53 MONITOR
P52 CDDI R
POI
",0
XT2
XT1~
~~II~
4V
OV~ KEY IN 0
KEY I N 1
KEY I N2
KEY I N3
BIAS
REC MUTE
PL.A Y MUTE
UNEMUTE
XT901
CST4.19MG
TR905
25C1740
~
Ir.4USIC
120/70 .••5
NORt.lAl.:
CHROME
- METAL
• DOLBY OFF/ON
DOLBY SIC
MPX FILTER
-BrAS
REC MUTE
PLA Y MUTE
LINE MUTE
CO DIRECT
MONITOR
'8V
eND
-8V
TO AUDIO' PWB UNIT CN191
(4U-1816)
'.-/'
R933
~~
~~~N~
~~
66'
o~
w ~-
•..
~ cc
"'-/
REMOTE n
R932
CONTROL
82k
JI<002
~~
~~
00
TR913
TR911
2SA933
DTC143X
I
I
CN191
• WARNING:
Parts marked with this symbol
it have critical characteristics.
Use ONLY replacement parts recommended by the manufacturer.
• CAUTION:
Before returning the unit to the customer, make sure you make either
(1) a leakage current check or (2) a line to chassis resistance check. If
the leakage current exceeds 0.5 milliamps, or if the resistance from
chassis to either side of the power cord is less than 240 K Ohms, the
unit is defective.
~+8V
----{ -12V
-8V
4U-1817-1 LOGIC PWB UNIT
TR91Q : DT A144WS
TR9Q9 : DTC124X
~-12V>
TR904 : 2S8562
D909
0910
R907 5.6« ~S270A"2
0907.908 :
I
• WARNING - DO NOT return the unit to the customer until the
problem is located and corrected.