Luxman L-507uX MARKII - Block Diagram; Internal Signal Flow

20
Block Diagram
LINE-1 PHONO
LINE-2
LINE-3
PRE OUT
LINE-4
LECUA-1
LECUA-2
MONITOR
REC OUT
STRAIGHT
Tone
Control
straight straight
Tone
Control
BAL. LINE-1 BAL. LINE-2
12
3
MONO
E
RIAA
PHASE INVERT
INV.
12
3
INV.
→
BAL
UNBAL
PHASE INVERT
→
BAL
UNBAL
MONITOR
Buffer
PRE OUT
Buffer
SEPARATE
MAIN IN
+B
-B
+B
-B
-B’
REG. B
A - Speakers B - Speakers
Phones
DC.
O.
TEMP.
Speaker selector /
Protector
MUTE
SUBSONIC
MUTE
Pr amp
RECTIFIER RECTIFIER RECTIFIER RECTIFIER
1-L
1-R
2-L
REG. REG.
For E. , TC. Pr amp For Protector
For Main Amp For Driver
2-R
REG.
RECTIFIER
FUSE
For μ-computer
POWER SW
Backup Transformer
Main Transformer
Volume/Treble/Bass/Balance
Remote
Input Selector
Key
LED
μ-com
STRAIGHT
REC OUT
SELECTOR
FUSE
INPUT
SELECTOR
11dB
×8step
1dB
×11step
LECUA-1
LECUA-2
MUTE
Pr amp
11dB
×8step
1dB
×11step
Meter
amp
MM/MC