Denon DRA-F107 - Page 12

12
DRA-F107 / DRA-F107DAB
Check Analog Audio Data output for POWER AMP Check Soldering.
to SPEAKER. 䊶 WP52 on D.AMP BLOCK
D.POWER AMP BLOCK N.G 䊶 IC54 on D.AMP BLOCK
䊶 [IC54]:39,40pin OUT_A , 36pin OUT_B 䊶 WC52 on MAIN B'D
31pin OUT_C , 27,28pin OUT_D
MAIN B'D SP OUT BLOCK
䊶 JK51
O.K.
END
(2) AM/FM TUNER-in
Check Power Supply Voltages for AM/FM TUNER. Check Soldering.
MAIN B'D N.G 䊶 D931 on SMPS B'D
䊶 Q813, 611 on MAIN B'D
䊶䈀IC62䈁:59pin TU_PWR
O.K.
Check Control Signal for AM/FM TUNER. Check Soldering.
MAIN B'D N.G MAIN B'D
䊶 [WN21]: 7pin PLL_CE,8pin R/F_DATA 䊶 IC61,62,WN21
9pin RF_CLK,10pinPLL_DI OK?
O.K.
Check Analog Audio Data output from TUNER PACK Check Soldering.
MAIN B'D N.G 䊶 WN21 1,3 pin TU_L,TU_R on MAIN B'D
䊶 TUNER PACK output
䊶 [WN 21]:1,3pin TU_L, TU_R
䊶 [IC21]:68,69pin䇭TU_L,TU_R
O.K.
to CD/USB in 䃨Mark
(3) Portable-in(Front-in)
Check Analog Audio Data output from Prtable-in
FRONT B'D N.G Check Soldering.
䊶 Portable-in output 䊶 JK82,on FRONT B'D
䊶 BN82 1,3pin POR_L.POR_R 䊶 BN82 on FRONT B'D
O.K.
Check Analog Audio Data input for FUNCTION IC Check Soldering.
MAIN B'D MCU,Function Bloc䌫 N.G 䊶 [CN82]:1,3pin PORT_L<PORT_R on MAIN B'D
䊶 [IC21] input 2,3pin 䊶 [WP11]:10,12pin on MAIN B'D
POR_L.POR_R 䊶 [WC11]:10,12pin on MAIN B'D
䊶 [IC21]:2,3pin PORT_L,PORT_R
O.K.
to CD/USB in 䃨Mark