SRP-X351P
3-2. BLOCK DIAGRAM
— 9 —
— 10 —
3-1. CIRCUIT BOARDS LOCATION
SECTION 3
DIAGRAMS
For schematic diagrams
• All capacitors are in
µ
F unless otherwise noted. pF :
µµ
F. 50V or
less are not indicated except for electrolytics and tantalums.
• All resistors except chips are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
: panel designation
•
: B+ Line
•
: B– Line
•
: adjustment for repair.
• Voltage is measured with respect to ground under no-signal
conditions.
• Voltages are reference values measured by a VOM (10M
Ω
/V).
• Signal path.
F
: AUDIO
f
: VIDEO
• Conditions of measuring voltage
MASTER VOL
MIN
MIC GROUP
MAX
ECHO SEND
–
∞
SELECT
A
MIC ASSIGN
ON
THIS NOTE IS COMMON FOR WIRING BOARDS
AND SCHEMATIC DIAGRAMS
B+
B–
SP board
S-VIDEO board
VIDEO board
MIC4 board
IR board
CONTROL board
CONTROL2 board
PS2 board
PS1 board
PSW board
FADER board
MIX board
LED board
MASTER board
IND board
TH1 board
PA board
TUN board
TH2 board
AUDIO board
ANT board
VOL board
MONO/STE MODE
STEREO
+48V SW
OFF
BALANCE/TONE
MIDDLE
FADER
–
∞
For printed wiring boards
•
: parts extracted from the component side.
•
: Pattern on the side which is seen.
(Other patterns are not shown.)
• Indication of transistor.
C
Q
These are omitted.
B
E
Note:
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
WRU-806A
WIRELESS
+48V
+48V
+48V
+48V
HA
HA
LCF
LCF
RF/Signal IND
MIC GROUP BUS
MIC
GROUP
MIC
ASSIGN
SW
MONO
STEREO
MODE
TREBLE
BASS
BALANCE
MASTER
MASTER INSERT
MASTER OUTPUT
REC OUTPUT
REMOTE
CONTROL-S OUT
S-Video
Video
-5dBu
L
R
S-Video
Video
-10dBu
EMG
EMG CONTROL
AC IN
POWER
SW
CIRCUIT BRAKER
L
R
L
R
SREAKERS OUTPUT
125W+125W 8
Ω
170W+170W 4
Ω
L
R
PROTECTION
CLIP
MIC GROUP OUTPUT
-10dBu
MIC GROUP INSERT
-10dBu
ECHO SEND
-10dBu
ECHO BUS
REC L
REC R
Signal IND
Signal IND
Signal IND
Signal IND
ECHO
ECHO
MIC 1
-54dBu
MIC 2
-54dBu
MIC 3
-54dBu
MIC 4
-54dBu
ST 1
-10dBu
for Player
ST 2
-10dBu
ST 3 Ach
ST 3 Bch
ECHO
RETURN
L
A
B
C
D
Mute
R
ECHO
RETURN
ECHO
ECHO
ECHO
ECHO
REMOTE
RS-232C
RS-232C Controller
REMOTE
CONTROL S IN
IR
Same as ST3 Ach
Same as MIC1
Same as MIC4
(without phone jack)
Same as ST3 Ach
Same as ST3 Ach
ST 3 Cch
ST 3 Dch
for Player/
Recorder
CH Fader
CH Fader
-10dBu
S-Video
Video
L
R
L
R
L
R
M
Main Controller
