Denon RCD-M38 Service Manual page 42

2.4. DAB TUNER-in (EK model)
Check Power Supply Voltages for DAB TUNER UNIT.
INPUT B'D
• SW+5V
• DAB+3.3V (CN11 2pin)
• DAB+1.5V (CN11 1pin)
Check controll signal for DAB TUNER.
INPUT B'D
• [CN11] : 15,16pin
DAB_DO
DAB_DI
Check Analogl Audio Data output from DAB TUNER.
INPUT B'D
• [DAB TUNER] output
[CN11] : 29,30pin DAB_L,DAB_R
Check Audio Data intput from FUNCTION IC.
INPUT B'D
• [I11] : 27,28pin DAB_L,BAD_R
Check Audio Data intput from FUNCTION IC.
INPUT B'D
• [I11] : 49.50pin LOUT,ROUT
to CD PLAY z Mark
2.5. USB PLAY
Check Power Supply Voltages for USB UNIT.
FRONT B'D
• [JK83 ] :1pin USB+5V
MCU_CD B'D
• [CN98] : 5pin USB+9V
• [IC51] : 1pin USB+5V
Check Data input from USB UNIT
FRONT B'D
• [JK83] : 2,3pin +D,-D
Refer to 2.1. CD PLAY
OK
OK
OK
OK
OK
OK
OK
Check Soldering.
• [CN72] : 9pin SW+5V on INPUT B'D
NG
• POWER B'D
• [IC18],[IC19] on INPUT B'D
Check Part
• [IC18],[IC19] on INPUT B'D
Check Soldering.
NG
• [WF11] : 2,3pin on INPUT B'D
• [WN11] on MCU_CD B'D
• [IC11] on MCU_CD B'D
NG
Check Soldering.
• [CN11] on INPUT B'D
Check Soldering.
NG
• [IC11] on INPUT B'D
• [C124],[C125]
NG
Check Soldering.
• [IC11] on INPUT B'D
Check Soldering.
• [BN83] : 1pin USB+5V on FRONT B'D
• [CN83] on MCU_CD B'D
NG
• [CN98] : 5pin on MCU_CD B'D
• POWER B'D
Check Part
• [IC71] on MCU_CD B'D
Check Soldering.
NG
• [BN83] : 2,3pin +D,-D on FRONT B'D
• [CN83],[IC21] on MCU_CD B'D
• [IC41] on MCU_CD B'D
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