9
RX
D-M9
09/LS
-M9
09
10. TUNER/TAPE/PORTABLE FUNCTION PART CHECK
OK
NO
NO
NO
Each function
(tuner/tape/portable)
output to IC200(BU4052)
input : L/R_CH
Check P7501
PIN6(L-CH),PIN8(R-CH)
Refer to SMPS
check CN202 Connection
Check
IC200 (BU4052)
PIN7:-12V
PIN:16:+12V
NO
Check ic201
PIN46:+3.3V
PIN14:+5V
Check ic201
PIN1:SDA
PIN2:SCL
PIN6:RST
Check
IC801 (MC4580)
PIN:-12V
PIN:8:+12V
Check IC801
(MC4580)
PIN1,7 output
IC501(ES8390)
PIN55 INPUT DATA
IC501(ES8390)
DADATA0 OUTPUT
Check IC201
(CS5345) PIN26,27
INPUT
Check IC201
(CS5345) PIN41 data
output
NO
check P7905 connection
After replace IC200
NO
check CN202 PIN4,5:+5V
PIN11,12: +3.3V
NO
check CN206
PIN8:SDA,PIN9:SCL,PIN10:RST
Replace IC201
FUNCTION CHECK
Each function
output line check
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Check IC200
(BU4052) PIN3,13 each
function
output
NO
NO
NO
YES
YES
YES
YES
YES
YES
Refer to SMPS
troubleshooting.
Check A deck head input
IC201_PIN32,39 and B deck
head input IC201_pin34,37.
Check
IC201(HA12237)_PIN16
12V input.
Check
IC201_PIN5,26 signal
output.
Check
IC201_PIN14 mute
operation.
Check
A/B deck head input.
TAPE PLAY PART CHECK
NO
Replace head wire and tape
deck mechanism.
Check
IC201.
NO
Replace IC201.
YES
YES
Check IC202_PIN10 “HIGH”
Check
IC202
NO
Replace IC202.
11. TAPE PLAY PART CHECK
OK
OK
YES
OK
Note: This shooting is the original circuitry so there are some different points from RXD-M909.
TROUBLESHOOTING