Marantz sr-18 u - Electrical Adjustments

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11. TROUBLE SHOOTING
no
yes
no
yes
no
yes no
no
yes yes no
yes no
yes
yes
No Power
Standby LED
Lights up on
standby mode?
FLD shows
"ERROR
PWR1" ?
Supply +15VA
to PY04?
PY04 has problem.
QY01(92p or 93p) lnput level
is too low.
Can PS04
supply +24V ?
Connection has
problem
Relay(LB03)
control is OK ?
PB04 , or connection has
problem
P804,or Main Transf(L001)
has problem
Vkk or FL is not supplied
to PU04
Power supply circuit has
problem.
Check +5VL or
PDOWN signal.
Supply +24V
to PY04?
PS04 or Sub Transf (L002)
has any problem
Can P804
supply +15VA
?
no
yes no
no
yes
yes
No sound from SPK on
Analog STEREO mode
Pre output is
active ?
Volume or HDAM or QC06
or Relay for Preout has any
problem
P704 or P754
has problem
Test tone out
is OK ?
(Volume , HDAM & Power
Amp are OK)
Analog audio input sel.
(PS04)has problem
Source Direct
is OK ?
(Volume,HDAM & Power Amp
are OK)
Tone Control (P104)has any
problem