Panasonic SA-AK250GCP Service Manual page 68

SA-AK250GCP
SCHEMATIC DIAGRAM - 4
I
MAIN CIRCUIT
R2284
0
R2285 0
3.3k
R2121
R2122 C2121
3.3k 3300p
W688
J
0
CE 1
D1 2
CLK 3
D0 4
GND 5
TO TUNER PACK
L-OUT 6
J3CCBB000009
VCC 7
R-OUT 8
W664
VSM 9
0 C2678
0.01u
FM DET/RDS 10
CN3601
W599
K W612
0
R2131
3.3k
0
R2132
3.3k
W638
0
C2985
22 CD_GND 1
1000P
R2232
L 2
3.3k
A_GND 3
R 4
R2231
CD_GND 5
3.3k
C2986
ST_IN
6
1000P
L ST_CLK
7
ST_REQ 8
L2901
TO
CD_3.3V 9
G0C101JA0052
CD SERVO
CD_GND 10
CIRCUIT
LD_SW 11
(CN7002)
12
TX
IN SCHEMATIC
+7.5V 13
DIAGRAM-1
U_GND 14
MCLK 15
MDATA 16
MLD 17
BLKCK 18
STAT 19
/RST 20
M
W613 0
/REST_SW 21
1 LOADING 22
CN2801
JK2803
C2981 C2983
1000p 1000p
4
R2241
12k
3
C2240
R2141
AUX IN 12k
1000p
N C2140
C2249
R2142
2
100p
2.7k
1000p
1
R2242
2.7k
O
P
1 2 3
: +B SIGNAL LINE : CD SIGNAL LINE : FM/AM SIGNAL LINE
W658 0 CE
D1
TO MAIN SECTION (1/4)
R2673
C2674
6.8k
560P
R2286
0
PLL_CLK
A_GND
W629 R2676
D0
0 0
Q3601
2SC3940A0A
C2673
SWITCH
560P
T_GND
Q3601
+15V
C2675
100p CD_RESET
CLOSE_SW
OPEN_SW
C2676 CHG_CW
D2603
16V220
B0BC9R000008 CHG_CCW
ST_SW
A_GND
PLAY_SW
ST_IN
CHG_PLR[88]
W620
V_JOG_A
W603
0 CD_3.3V
0 KEY3
KEY2
KEY1
CD8.5V
DECK_AD1
U_GND
MCLK
DECK_AD2
MDATA
VREF+
MLD
VCC W608
+3.3V 0
R2921
R2848 W647
4.7k
10K
BLKCK 0
W639
0
C2006 STATUS R2849
1000P 56K
R2927
R2922 W679
CD
1K A_GND
10k
_RESET
0
RESTSW
A_GND
IC4000
R2151 0 PA_IN_L
R2251 0 PA_IN_R
1 2 3 4
W614
SYS6V
0
U_GND
A_GND
W663
0
L4000
VREF+
D0GBR000JA008
VCC
D4000
B0JAME000114
4 5 6
: MAIN SIGNAL LINE : AUX SIGNAL LINE : USB SIGNAL LINE
47k
R2826
R2827 47k
R2828 47k
W626
0
W653
0
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
R2833 100
81
R2834 100
82
R2835 100
83
R2836 100
84 CW
R2837 100
85 CCW
R2838 100 [81] CD_RST
86 ST_SW
[82] CLOSE_SW
R2839 100
PLAY_SW
87 [83] OPEN_SW
R2840 100
PLUNGER
88
REG IC2801
89
C2CBYY000482
90 VOL_JOG
91 D-PORT_PCONT
MICROPROCESSOR
R2841 100
[97] DECK_AD2
92 KEY3
R2842 100 [98] Vref
93 KEY2
[99] Avcc
R2843 100
94 KEY1 [100] DEMO_SET
[31] USB_SDA (TxD)
95 DECK AD1 [32] USB_SCL (RxD)
C2954
W633 0
[33] USB
96 AVSS
560P
97
98
C2953
99
560P
100
R2846
100k
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
W607
IC4000 C2821
0
C0DBZGC00067
W598
100p
0
3.3V REGULATOR
5 R2812
100K
C4001
0.022
L4001
D0GBR000JA008
W637 W616 W655 W625
0 0 0
7 8 9
68
W617
0 D2811
B0ADCJ000020
R2894
47k
2
3
W645
0
1
W684
0 D2813
B0ACCK000005
IC2871
IC2871
E-EPROM IC
R3303
1 NC NC 8
10k (NOT SUPPLIED)
2 VCC GND 7
3 EE_CS 6
C2872
0.022u 4 EE_CLK EE_DAT 5
C2956
100P
R2873
22k
60 59 58 57 56 55 54 53 52 51
W644 0
50
49
W634 W659 W657 W636 W662
48
0 0 0 0 0
DCDET
PCONT/EFP/CS 46
45
XM_ANT_REV
XM_DAC_RESET 44
EE_DAT 43
[50] STANDBY
[49] XM_PCONT EE_CLK 42
[48] XM_RST
EE_CS/EFP/EPM 41
MUTE_A 40
MUTE_DA 39
TERR 38
37
XM_I2S_RATE
36
XM_RX_IN
35
VERR
W643
BUSY 34
0
33
32
31
22 23 24 25 26 27 28 29 30
R3211
100
W642
0
W601
0
W632
0
W624
0 0
1/4
3/4
10 11 12
+5V
+3.3V
TO MAIN SECTION (4/4)
+15V
IDCDET
U_GND
STANDBY
IDCDET
PCONT
MUTE_A
MUTE_D_AMP
BUSY
USB_RST
USB_SCL
C10
C11
C12
C13
C14
C15
C16
C17
2/4
SA-AK250GCP MAIN CIRCUIT
4/4
13 14