Marantz DV8300, Service Manual

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40
12 MICROPROCESSOR AND IC DATA
QF01:TMP87CM71F
Pin PORT Signal name I/O Contents of control
1 P02/SO1 SOUT (F to M) O Serial bus data output for DV747
2 P03 RESET_OUT O For the DV747 RESET terminal control RESET: L
3 P04 DV8300/DV8310 I Setup of Model Circuit diagram reference
4 P05 XRDY O Serial data communication request signal for DV747 High: request /Low: no
5 P06 N C
6 P07 N C
7 VSS GND
8 XOUT 8MHz X'TAL
9 XIN 8MHz X'TAL
10 RESET RESET I Reset signal for the microcomputer
11 P22 MODEL1 I Set up of version Circuit diagram reference
12 P21 MODEL2 I Set up of version Circuit diagram reference
13 TEST GND
14 P20 MODEL3 I Set up of version Circuit diagram reference
15 P10 ILM_LED O ILM LED for FL Light burned: H
16 P11 STB_LED O It is light at the STANDBY Light burned: H
17 P12 FL_OFF_LED O Lighting (FL Lights-out) Light burned: H
18 P13 STB_CONT O Power supply control for DV747 Stand-by time: LOW
19 P14 V_MUTE O Mute control for Video At the time of Mute: L
20 P15 LT1 I Serial bus data Ready/Busy input for DVD747 High: Ready/Low: Busy
21 P16 D_BUS_IN I D-BUS input
22 P17/TC3 IR I IR sensor input
23 P30 SCL O I2C clock (EEPROM control) AT24C04
24 P31 SDA I/O I2C data (EEPROM control) AT24C04
25 P32 GND
26 P40 N C FL Lights-out
27 P41 KEY_IN_0 I Key matrix input (Tactile switch)
28 P42 KEY_IN_1 I Key matrix input (Tactile switch)
29 P43 KEY_IN_2 I Key matrix input (Tactile switch)
30 P44 KEY_IN_3 I Key matrix input (Tactile switch) spare
31 P45 PowerTrigger I By the AD change, Power decision Setup of Model is Linkage with
32 P46 SreviceKey I Service function switching
33 P47 GND
34 P50 KEY_OUT_0 O Tactile switch spare
35 P51 KEY_OUT_1 O Tactile switch
36 P52 KEY_OUT_2 O Tactile switch
37 P53 KEY_OUT_3 O Tactile switch
38 VASS GND GND for A/D
39 VAREF 5V O A reference voltage for A/D
40 VDD 5V Power supply