Denon RCD-M39 Service Manual page 47

Check Digital Audio Data and Clock for DAC.
INPUT B'D
• [IC57] : 13,14,15,pin
BCK,DIN,LRCK
Check Analog Audio Data output from DAC.
INPUT B'D
• [IC57] : 6,7pin on INPUT B'D
Check Analog Audio Data input for FUNCTION IC.
INPUT B'D
• [IC53] input 2,31pin
DAC_L , DA_R
z
Check control signal for FUNCTION IC.
INPUT B'D
• [IC53] : 10,11,12pin
V_DATA,V_CLK,V_CE
Check Analog Audio Data output from FUNCTION & PRE AMP.
• [IC53] : 8,25pin L_OUT,R_OUT
• [IC62] : 1,7 pin
Check audio function mute signal.
INPUT B'D
• [Q608] : "H" level O.K.?
Check Analog Audio Data input for POWER AMP.
AMP B'D
• [IC71] : 15(Lch),11(Rch)
Check Analog Audio Data output for POWER AMP to SPEAKER.
AMP B'D
• [IC71] : (6,7:Lch) (4,5:Rch)
Check SPEAKER RELAY control signal.
SPEAKER B'D
• [D706] : ANODE -12V O.K.?
SPEAKER B'D
• [JK71]
OK
OK
OK
OK
OK
OK
OK
OK
OK
END
NG Check Soldering.
• [IC21] on MCU_CD B'D
• [IC51] : (DIR) on INPUT B'D
NG
Check Soldering.
• [IC57] : 6,7pin on INPUT B'D
NG
Check Soldering.
• [IC53] on INPUT B'D
Check Soldering.
• [IC11] on MCU_CD B'D
NG
• [FCMC] : 12,13,14pin on MCU B'D
F_V_DATA,F_V_CLK,F_V_CE
• [FCIC] : 12,13,14pin on MCU B'D
F_V_DATA,F_V_CLK,F_V_CE
Check Soldering.
NG
• [IC53] on INPUT B'D
• [IC62] on INPUT B'D
Check Soldering.
NG
• [Q106],[112] on INPUT B'D
• [WF11] : 10pin F_MU on INPUT B'D
• [IC11],[Q103] on MCU_CD B'D
• [WN11] on MCU_CD B'D
Check Soldering.
NG
• [CWIL] : 3,1pin on INPUT B'D
VOL_L,VOL_R
• [CBAL] on AMP B'D
NG
Check Soldering.
• [IC71] : 6,7,4,5pin
• [CBAM] : (3,4:Lch)(1,2:Rch)
Check Soldering.
• [CBOM] : 11pin on SPEAKER B'D
NG
• [CBAM] on AMP B'D
• [Q712],[Q713] OK? on AMP B'D
• [CBAD] : 5pin SP_ON on AMPB'D
• [CWMD],[IC11] on MCU_CD B'D
NG
• [CBOM] on SPEAKER B'D
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