TX-SR608 HT-RC260 DTR-20.2/ 30.2TX-SR608 HT-RC260 DTR20.2/ 30.2
TROUBLE SHOOT-3 
No Sound
A
1
2
3
4
5
BCDEF GH
6
7
8
IJK
Y
NNN
Y
YY
N
N
NY Y
N
N
N
N N
Y
Y
Y
Y
  N
N
YY
N  
Y
N
NN
N
Y
NN
YY
N
Y
Y  Y
DIR_FLR DIR_LRCK DIR_BCK DIR_MCK 
DSP_FLR/SLR/CSW CX_LRCK CX_SCLK HDMI_MCK 
HDMI_FLR HDMI_LRCK HDMI_BCK
V:1V/cm H:0.1µ/cm V:1V/cm  H:5µ/cm V:1V /cm  H:0.1µv/cm V:1V/cm  H:0.1µv/cm
HDMI_SPDIF
V:1V/cm H:0.1µ/cm
BAAF-0355(AF Board) 
AUDIO-SEL_OUT
 Each PRE-OUT or 
 P6600    SBR--1pin SR--3pin  
 FR--5pin  C------7pin FL--9pin  
 SL--11pin  SBL---13pin
BATRM-0368(TRM Board) 
JL600(AMP_OUT)
SR----6pin   FR----5pin 
C------4pin   FL-----3pin 
SL-----2pin  SBR--7pin 
SBL---1pin
BATRM-0368(TRM Board) 
JL603 1Pin +22V
BCAF-0355 (AF Board)
P6901(+55V) P6902(-55V)
BAAF-0355(AF Board) 
Q4170 3pin  +5V 
Q4171 3pin -15V 
Q4184 E   +7V 
Q8185 E   -7V
BAHDM-0403(HDMI Board) 
DIR_OUT 
P8001 3pin DIR_BCK 
       5pin DIR_LRCK 
       7pin DIR_FLR 
P8002 23pin DIR_MCK
BADG-0364(MPU Board) 
 DSP_OUT 
P8002   24pin DSP_FL/R 
P8001   8pin  DSP_SL/R
,
       10pin DSP_CSW
,
        4pin  CX_SCLK
.
        6pin  CX_LRCLK
BADG-0364(MPU Board)
BADG-0364(MPU Board) 
DAC_OUT
BADG-0403(HDMI Board)
JL801
2pin and 4pin +12V
BAETC-0359(torans terminal) 
JL952 1-3pin AC10V
BADG-0364(MPU Board) 
P2001 21 22pin +5V
BADG-0364(MPU Board) 
P2001 21 22pin +5V
BAETC-0359(torans terminal)
JL952 1-3pin
AC10V
BAVD-0375/0389(Video Board)
BAHDM-0403(HDMI Board) 
P8001 16pin HDMI_SPDIF  . 
      15pin HDMI_MCK 
      13pin HDMI_BCK 
      11pin HDMI_LRCK 
      9pin HDMI_FLR
BADG-0403 (HDMI Board)
JL801
1&4pin +12V
BAETC-0359 (torans terminal)
JL952 1-3pin
AC10V
Note: 
This is just for general reference and does not include every single case. 
The above waveforms are got by Oscilloscope of Maximum Horizontal Sensitivity: 100MHz. 
The results depend on the oscilloscope.
No Sound 
from HDMI input
Waveforms are no problem?
BAVD-0375/0389(Video) 
Replace Video Board or Repair
Repair
D9011/R9013/R9012 
and their peripheral circuit.
Replace Power 
transformer or 
Repair its peripheral 
circuit.
BAHDM-0403(HDMI Board) 
Make sure that JL801 3pin is 12V 
Replace HDMI Board 
or Replace Q8501(HDMI_4RX) 
         Q81061(HDMI 1st SW) 
or Repair its peripheral circuit.
No Sound 
from COASXL/OPT input
Waveforms are no problem?
Waveforms are no problem?
Analog signal outputs from 4-9 
pins of P5502? 
4pin----FR    5pin----FL 
6pin----SW    7pin----C 
8pin----SR    9pin----SL
Replace MPU Board or
Replace 
U131/132 Q301 Q131 or 
Repair their peripheral
circuit.
Replace Video Board or 
Repair 
Q9031/D9011/R9013/R9012
and their peripheral circuit.
BAVD-0375/0389(Video Board) 
Replace Video Board or 
Repair 
D9011/9013/R9012
and their peripheral circuit.
BAHDM-0401(HDMI Board) 
Make sure that JL801 2pin & 4pin is 
12V. Replace HDMI Board or 
Replace Q2001(DSP-IC) or 
Repair its peripheral circuit.
BAETC-0359(torans terminal)
JL952 1-3pin
AC10V
BADG-0364(MPU Board)
Replace MPU Board or
Replace Q302 or
Repair its peripheral
circuit.
Replace Power 
transformer or 
Repair its peripheral 
circuit.
BAVD-0382/0389(Video Board) 
Replace Video Board or
Repair 
Q9031/D9011/R9013/R9012 
and their peripheral circuit.
No Sound 
from ANALOG input
Signal output is no problem?
Signal output is no problem?
BCAF-0355(AF Board) 
Replace AF Board or 
Repair R4160/4166 
D4300/4301/4302/4303 and 
their peripheral circuit.
BADG-0364(MPU Board) 
P5503 3pin (SEC1H) 
Voltage changes from 0V to 
3V about 2 or 3 seconds after 
power-on?
BATRM-0368(TRM Board) 
JL610 1pin, 2pin, 3pin, 4pin 
Voltage changes from 0V to 
3V about 3 or 4 seconds 
after power-on?
BADG-0364(MPU Board)
P5503 6pin(I-pro):0V 
       5pin(V-
pro):0V
JL501 3pin(THE): +1V or lower
8pin(V-olh):0V
BATRM-0368(TRM Board)
Replace TRM Board or 
Repair 
 Q6601/6602/6603/6604 
R6690, and their peripheral 
circuit.
BADG-0364(MPU Board) 
Replace MPU Board or 
Replace Q701 and repair 
its peripheral circuit.
BCAF-0355(AF Board) 
Replace AF Board or 
Repair Q4001 and its 
peripheral circuit.
Y
BCAF-0355(AF Board) 
Replace AF Board or 
Repair Q4170, Q4171, Q4181,Q4185 
and
their peripheral circuit.
BCAF-0355(AF Board) 
Replace AF Board or 
Repair Final TR 
and their peripheral circuit.
BACLA-0362 
    (A_Class amp Board) 
Replace “A_Class amp Board” 
and their peripheral circuit.
BCAF-0355(AF Board) 
Replace AF Board or 
Replace D6901 F6901 
F6902 and repair their 
peripheral circuit.
Y
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TEL 13942296513 QQ 376315150 892498299 
TEL 13942296513 QQ 376315150 892498299