Marantz AV7701 Service Manual page 99

The BD/DVD player does not recognize the connection with the
(18)
set.
When using a
(19)
marantz BD/DVD
Is the "H"(3V-5V) signal outputted of HDMI connector (JK101/JK501-
player, is the FL
NO
JK506 : TP[HPD])?
display's "HDMI"
With the BD/DVD player connected, Check voltage of the HDMI
indicator lit?
connector for the input on the side on which the BD/DVD player is
If using a non-
connected. Is communication waveform confirmed in TP[DDC_CLK]/
marantz BD/DVD
TP[DDC_DATA] around each HDMI connector ?
player, proceed
Is TMDS line of HDMI connector terminated by the TMDS signal of 3.3V
to "NO".
and is the signal output?
YES
(20)
VIDEO CONVERT : Is the picture output when it is set to off?
(After item (21) : To be "VIDEO CONVERT:OFF" setting.)
The HDMI input circuitry is defective.
(IC121 or IC501 and surrounding circuitry)
Check operation of each device.
(AMP source : BD[i/p:Analog&HDMI,MONITOR OUT:Auto] / Video input of player :
480P / Connect the TV. / ZONE2 : ON)
Check operation of IC501(SiI9575).
(21) Check power supply.
Are 5V or 3.3V or 1.3V supplied to IC501 (each power supply pin)?
Refer to [Detail C] of the substrate for test point.
(22) Check xtal oscillator.
Is oscillation of X5001(27MHz) transmitted?
(23) Check RESET.
Is RESET waveform confirmed in TP[SiI9575_RESET], when the power is
turned on?(If the waveform is not the reference waveform, proceed to NO.)
(24) Check Control signal (I2C).
Is waveform confirmed in TP[HDMI_SCL/HDMI_SDA], when the power is
turned on? (If the waveform is not the reference waveform, proceed to NO.)
(25) Check output signal.
Is TMDS waveform confirmed in 142-149pin/152-159pin. Is communication
waveform of DDC_SCL/DDC_SDA confirmed in 106,107pin/109,110pin? (If the
waveform is not the reference waveform, proceed to NO.)
Check operation of IC121 (ADV7850).
(26) Check power supply.
Are 1.8V supplied to L1203/L1204/C1393/L1208/L1211?
Are 3.3V supplied to L1206/L1207/L1212/L1213?
YES
NO
YES
YES
YES
YES
YES
YES
YES
IC151(ADV8003) and surrounding circuitry
are defective.
NO
The power supply circuitry is defective.
NO
The X5001 or IC501 is defective.
NO
The RESET circuitry or IC501 is defective.
NO
The pattern is defective of the HDMI_SCL/
HDMI_SDA line.
NO
The IC501 is defective.
NO
The power supply circuitry is defective.
99
The pattern and
circuit from the
NO
HDMI connector
(JK101/JK501-
JK506) to the IC
(IC101/121/501)
are defective.