Sanyo DC-BM300 Service Manual page 15

IC BLOCK DIAGRAM & DESCRIPTION
IC601 LC866540A-50C9 (Micro Processor)
NO. PIN NAME NAME I/O
1 P16/BUZ JOG+ I Input JogDial
2 P17/PWM0 JOG- I Input JogDial
3 P30 D_CLK O Serial clock output for Tu/Vol_Func IC
4 P31 D_OUT O Serial date output for Tu/Vol_Func IC
5 P32 O Open
6 P33 O Open
7 P34 O Open
8 P35 VF_CE O Serial latch output for Vol_Func IC
9 P36 TU_CE O Serial latch output for Tu IC
10 P37 TU_D1 I Serial date input for Tu IC
11 P70/INT0 PROTECTOR I Protect Set (High; Irregular)
12 RES RESET I System Reset pin
13 XT1/P74 XT1 I Sub clock junction pin
14 XT2/P75 XT2 O Sub clock junction pin
15 XSS1 VSS
16 CF1 CF1 I Main clock junction pin
17 CF2 CF2 O Main clock junction pin
18 VDD1 VDD
19 P80/AN0 KEY0 I
20 P81/AN1 KEY1 I
21 P82/AN2 SW0 I CD; Limit SW, Open SW, Close SW
22 P83/AN3 I Connect to GND
23 P84/AN4 I Connect to GND
24 P85/AN5 I Connect to GND
25 P86/AN6 I Connect to GND
26 P87/AN7 I Connect to GND
27 P71/INT1 WRQ I CD DSP interface(sub Q Request)
28 P72/INT2/T0IN RDS IN I Serial date input for RDS IC
29 P73/INT3/T0IN IR I Remote control input
30 S0/T0 O Open
31 S1/T1 O Open
32 S2/T2 O Open
33 S3/T3 O Open
34 S4/T4 O Open
35 S5/T5 O Open
36 S6/T6 O FL digit output (10G)
37 S7/T7 O FL digit output (9G)
38 S8/T8 O FL digit output (8G)
39 S9/T9 O FL digit output (7G)
40 S10/T10 O FL digit output (6G)
41 S11/T11 O FL digit output (5G)
42 S12/T12 O FL digit output (4G)
43 S13/T13 O FL digit output (3G)
44 S14/T14 O FL digit output (2G)
45 S15/T15 O FL digit output (1G)
46 VDD3 VDD
47 S16/PC0 O FL Segment output (P17)
48 S17/PC1 O FL Segment output (P16)
49 S18/PC2 O FL Segment output (P15)
50 S19/PC3 O FL Segment output (P14)
IC442 TDA7265 (Stereo Amplifier)
MUTE/
5
ST-BY
IN (L)
7
9
GND
IN (R) 11
DESCRIPTION
+Vs
3
4 OUT (L)
8
IN- (L)
10
IN- (R)
2 OUT (R)
1 6
-Vs
NO. PIN NAME NAME
51 VP VP
52 S20/PC4
53 S21/PC5
54 S22/PC6
55 S23/PC7
56 S24/PD0
57 S25/PD1
58 S26/PD2
59 S27/PD3
60 S28/PD4
61 S29/PD5
62 S30/PD6
63 S31/PD7
64 S32/PE0
65 S33/PE1
66 S34/PE2
67 S35/PE3 SEL_POE_RY
68 S36/PE4 V_CHK
69 S37/PE5 C2F
70 S38/PE6 REEL
71 S39/PE7
72 VDD4 VDD
73 S40/PF0 G_REVS
74 S41/PF1 G_FWD
75 S42/PF2 PACK
76 S43/PF3 TAPE_INI
77 S44/PF4 POW_RY
78 S45/PF5 SP_RY
79 S46/PF6 LED
80 S47/PF7 Moter
81 S48/PG0 Tape Play PL
82 S49/PG1 P_CON
83 S50/PG2 OSC
84 S51/PG3 PRE_MUTE
85 P00 MAIN_MUTE
86 P01 SURROUND
87 P02 DSP_RESET
88 P03 CLK_SHIFT
89 VSS2 VSS
90 VDD2 VDD
91 P04 BEAT
92 P05 R_Mute
93 P06 TRY_OPEN
94 P07 TRY_CLOSE
95 P10/S00 COIN
96 P11/S10/SB0 SQOUT
97 P12/SCK0 CQCK
98 P13/S01 VD_GND
99 P14/S11/SB1 DRF
100 P15/SCK1 RWC
IC443 BA7755A (Head Switch)
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I/O DESCRIPTION
FL drive output power
O FL Segment output (P13)
O FL Segment output (P12)
O FL Segment output (P11)
O FL Segment output (P10)
O FL Segment output (P9)
O FL Segment output (P8)
O FL Segment output (P7)
O FL Segment output (P6)
O FL Segment output (P5)
O FL Segment output (P4)
O FL Segment output (P3)
O FL Segment output (P2)
O FL Segment output (P1)
O Open
O Open
I Power Relay Function Select (High; None)
I Detection for Power Failure (Low; Power Failure)
I DSP C2F input
I Reel Rotor Signal Input
I Connect to GND
Power(+5V)
I Failure record SW (Tape B side) Input
I Failure record SW (Tape A side) Input
I Tape Pack Check Input
I Tape Deck Initialize
O Power Relay Control Output (High; Relay On)
O Speaker Relay Control Output (High; Relay On)
O Light for CD
O Tape Moter Output (High; Moter On)
O Tape Play Plunger Output (High; Plunger On)
O Power control (High; Power On)
O Control for Oscillation of Tape On/Off (High; Oscillation)
O Pre Amp Mute Output (High; Mute On)
O Power Amp Mute Output (Low; Mute on)
O Surround Output Open
O Reset Signal for CD DSP
O Main clock shift
Power (GND)
Power (+5V)
O Beat CCL Control
O Tape Recording Mute (High; Mute On)
O Trey Open Control Output
O TREY Close Control Output
O CD_DSP interface(command data output)
I CD_DSP interface(SubQ data input)
O CD_DSP interface(clock)
O GND control output for micon power check
I DRF signal input
O CD_DSP interface(command latch)
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