Denon S-5BD, Service Manual

Page: 39 / 207

39
2. HDMI/DVI
2.1. No picture or sound is output (BD Drive)
Check Supply Voltages from Power Supply Unit
• +5V_D4, +3.3V_D1
Check Supply Control signal to Power Supply unit
• BD_POWER
Check Supply Voltages at DCDC output.
• +3.3V_D4,+1.8V_D4,+1.1VD4
Check Supply Control signal to DCDC
• BE_STANDBY, BE_POWER_CORE, BE_POWER_1.8
Check Reset signals
• NRST
• BE_RST
Check Oscllation waveform
• VMCLK, AMCLK1, AMCLK2
Check POWER SENSE Signal
• BD_P_DOWN
Check AT1DATA[0:15] signals from FE Unit
• [CY452] 29-44Pin
Check Video Data and Clock signals
• Video Signals [IC504] 1-3, 88, 56-63, 71-75, 77-79, 84-86,
90-94Pin
Check TMDS Video/Audio Data signals to DIGITAL Unit
• [CY156] 3, 4, 6, 7, 9, 10, 12, 13Pin
• [CY084] 4, 5, 6, 7Pin
Continue to the check process of
"2.2. No picture or sound is output
(HDMI 1/2 Front input)"
Check Soldering and Wires from Power Supply Unit
• [CX088] 3,4,1Pin
Check Soldering
• [CX088] 8Pin
Check Soldering
• [IC206],[IC207], [IC208] and Circumference
Check Soldering
• [IC853] ,63,22Pin and [R930]
Check Soldering
• [CX171]1Pin and [RR881], [RR813]
• [IC853] 23Pin
Check Soldering
• [R719], [R720], [R721]
Check Soldering
• [IC853] 65Pin and [R815]
Check Soldering
• [CY452] and Circumference
Check Soldering
• [R115] - [R142]
Check Soldering
• [CY156], [CY084] and Circumference
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.