Denon HEOS HomeCinema HS2 Service Manual page 45

5. No audio output from this unit
Main PCB
Check the input signal
[U8 : 13pin] SPDIF
OK
Main PCB and HDMI PCB
Check the input signal
[J7 : 50pin] COAX_SPDIF
OK
Main PCB
The circuit around [U1, U7, U11] is faulty.
6. No audio output from this unit
HDMI PCB
Check the input signal
[U6 : 2pin] SPDIF
OK
Main PCB and HDMI PCB
Check the input signal
[J7 : 34pin] OPT_SPDIF
OK
Main PCB
The circuit around [U1, U7, U11] is faulty.
(COAX)
NO
HDMI PCB
The circuit around [COAX terminal J3, U8] is faulty.
NO
HDMI PCB or Main PCB
The circuit around [J7] is faulty.
(Opt)
HDMI PCB
NO
The circuit around [Opt terminal OPT1, U6] is
faulty.
NO
HDMI PCB or Main PCB
The circuit around [J7] is faulty.
7. No audio output from this unit
HDMI PCB
Check peripheral circuits around [U1] and the
HDMI terminal HDMI 2.
[U1 : 129pin] MCLK_OUT_HDMI
[U1 : 131pin] SCLK_OUT_HDMI
[U1 : 132pin] AP5_OUT_HDMI
[U1 : 133pin] AP1_OUT_HDMI
[U1 : 134pin] AP2_OUT_HDMI
[U1 : 135pin] AP3_OUT_HDMI
[U1 : 136pin] AP4_OUT_HDMI
OK
HDMI PCB and Main PCB
Check the signal
[J7 : 14pin] MCLK_OUT_HDMI
[J7 : 12pin] SCLK_OUT_HDMI
[J7 : 10pin] AP5_OUT_HDMI
[J7 : 2pin] AP1_OUT_HDMI
[J7 : 4pin] AP2_OUT_HDMI
[J7 : 6pin] AP3_OUT_HDMI
[J7 : 8pin] AP4_OUT_HDMI
OK
Main PCB
The circuit around [U1, U7] is faulty.
8. No audio output from this unit
Main PCB and HDMI PCB
Check the signal
[J7 : 53pin] AUX_IN_L
[J7 : 54pin] AUX_IN_R
OK
Main PCB
Is the ANALOG signal OK?
[U11 : 47pin] AUX_L
[U11 : 48pin] AUX_R
OK
Main PCB
The circuit around [U1, U7, U11] is faulty.
45
(HDMI IN)
NO
HDMI PCB
Peripheral circuits around [U1 or HDMI terminal
HDMI 2] are faulty.
NO
HDMI PCB or Main PCB
The circuit around [J7] is faulty.
(AUX)
NO
HDMI PCB
The circuit around [AUX terminal PJ1, J7] is faulty.
NO
Main PCB
The circuit around [U26, U30, U31,U35, J7] is faulty.