Panasonic SA-PT250EE Service Manual ▷ View online
22.2. SC-PT250 Power Block
SC-PT250 POWER BLOCK
-7V
D+5V
-13V
+18V
A+5V
DVD_ADAC+5V
DVD_2R7
SW+5V
TU+9V
F+/F-
IC2903
DC-DC
CONVER
TER
IC2900
DC-DC
CONVER
TER
REGULA
T
O
R
REGULA
T
O
R
REGULA
T
O
R
REGULA
T
O
R
LIMITER
+7V
T2900
IC2901
RF+5V
S
M
P
S
C
-
+
C
-
+
C
-
+
C
-
+
C
-
+
C
-
+
R
R
L
D
D
L
L
SA-PT250EE
105
22.3. SC-PT250 SMPS Block
VOL
T
AGE
DIVIDER
SHUNT
REGULA
T
O
R
A
C
R
IC5801
FEEDBACK
PC5720
T5701
13V
-13V
18V
F
AN_18V
+30V
D5801
+30V_SENSE
-30V
D5802
-30V_SENSE
OVP
Q5802/D5806
DC_18V
18V
T5751
IC5799
DF
B
FEEDBACK
PC5799
VCC
IC5701
AC IN
+6V
SYS6V
L5702
+
-
C571
1
VCC
REGULA
T
O
R
D5722/D5723
D5721
F1
SC-PT250 SMPS BLOCK
SA-PT250EE
106
23.1. IC2001 (C2CBYY000440):
System Control IC
Pin
No.
Terminal Name
I/O
Function
1
TRAY_CLOSE
I
LOADING MECHA CLOSE SW (L: SW
ON)
ON)
2
TRAY_CCW
O Terminal for tray control 1
3
TRAY_CW
O Terminal for tray control 2
4
TRAY_OPEN
I
LOADING MECHA OPEN SW (L: SW
ON)
ON)
5
MIC_SW
-
MIC Insertion Detect (if MIC_EN=1)
6
NC
-
No Connection
7
XM_EN
I
Wireless Data Input (Disable)
8
BYTE
I
VSS (GND)
9
CNVSS
-
VSS (GND)
10 GND
-
GND (0V)
11 RDS_EN
I
RDS Enable (H=Enable, L=Disable)
12 RESET
I
SYSTEM RESET INPUT
13 XOUT
-
MAIN CLOCK OUTPUT (10.0MHZ)
14 VSS
-
GND (0V)
15 XIN
-
MAIN CLOCK INPUT (10 MHZ)
16 VCC
-
POWER SUPPLY (5V)
17 NMI
I
CONNECT TO VCC, EXTERNAL
INTERRUPT I/P
INTERRUPT I/P
18 RMT
I
REMOCON INPUT
19 SYNC
I
AC FAILURE DETECT INPUT
20 NC
-
No Connection
21 MIC_EN
I
Microphone Enable (L=Disable,
H=Enable)
H=Enable)
22 NC
-
No Connection
23 EDA
I/O DATA signal for the EEPROM
24 ECK
O CLOCK signal for the EEPROM
25 ECS
O LAT signal for the EEPROM
26 TV_EN
I
Disable/Enable for TV Selector
27 NC
-
No Connection
28 DVD_CLK
I
CLK signal for the DVD Module
29 DVD_STAT
I
STATUS signal from the DVD Module
30 DVD_CMD
O CMD signal for the DVD Module
31 FX_DO
O For Flash Programming
32 FX_DI
I
For Flash Programming
33 FX_CLK
O For Flash Programming
34 FX_DET1
O (for FLASH writing)
35 TUN_SD
I
Tuner Station Detect
36 TUN_CLK
0
I2C Clock for Tuner
37 TUN_DO
I
Stereo Detect
38 TUN_DI
O I2C Data for Tuner
39 FX_EN
I
Wireless Enable
40 DVD_PCONT
O Control Signal for the Power for the
DVD MODULE
41 EPM
I
[Flash Connector]
42 DVD_MUTE
I
Signal from DVD module control mute
circuit
circuit
43 DC_DET1
I
DC Detection circuit 1
44 SCART_MUTE
O Line out for SCART terminal
45 ACS_EN
I
Wide Surround Enable
46 VMUTE
O Video Mute Control
47 ASP_CLK
O Clock signal for 6ch VOL ASP
48 ASP_DAT
O Data signal for 6ch VOL ASP
49 NC
-
No Connection
50 NC
-
No Connection
51 NC
-
No Connection
52 HBASS_SW
O HBASS Control
53 RGB_H
O Mute signal 1 for video output
54 MULTI_1
O Multi Room selector 1
55 VMUTE_MAIN
-
No connection
Pin
No.
Terminal Name
I/O
Function
56 POS_SW
I
Position Sensor
57 NC
-
No Connection
58 NC
-
No Connection
59 SENS1
I
Digital Amp Output Sensor 1
60 SENSE2
I
Digital Amp Output Sensor 2
61 OPT_EN
I
Optical IN Enable (L=Disble,
H=Enable)
H=Enable)
62 VCC
-
POWER SUPPLY 5.0V
63 DC_DET2
I
DC Detection Circuit 2
64 VSS
-
GND (0V)
65 YC_H
O Control signal for the video signal Mix
66 NC
-
No Connection
67 HOP_DA
O Frequency Hop Control DA
68 MUTE_C_S
O Center and Surround L & R Mute
69 MUTE_F_SW
O Front L & R Mute and SubWoofer
Mute
70 AMBP
O AM Beat Proof for SMPS
71 MOD_DA
O Digital Amp Standby Control
72 PCONT
O System Power Control
73 CEC_OUT
I
Output Port for HDMI/CEC
74 ACS_MUTE
O ACS Mute Control
75 CEC_IN
I
HDMI/CEC Input
76 JOG_A/VOL_UP
I
Signal A from Volume JOG / Volume
Up Button
Up Button
77 JOG_B/VOL_DN
I
Signal B from Volume JOG / Volume
Down Button
Down Button
78 HP_MUTE
O Head Phone Mute signal
79 RDS_DAT
I
Data signal from the RDS decoder
80 WIDE1
O Control Signal for the WIDE function
81 RDS_CLK
I
Clock signal from the RDS decoder
82 WS_LED
O Wide Surround LED
83 ECHO_LVL1
O Echo Level 1 Control
84 ECHO_LVL2
O Echo Level 2 Control
85 FLD_CLK
O Clock Signal for the FL Driver
86 FLD_STB
O FL Strobe
87 FLD_OUT
O FL Data Out
88 ECHO_MUTE
O Echo Mute
89 MD3
I
Model Code 3
90 MD2
I
Model Code 2
91 KEY 2
I
Key 2 line input
92 ACS
I
Auto Calibration
93 DES3
I
DVD Region Setting
94 DES2
I
Model Selector
95 DES1
I
REGION Setting for Tuner
96 AVSS
-
Analog Power Supply Input
97 KEY1
I
Key 1 Line input
98 VREF
-
Reference Voltage Input
99 AVCC
-
Analog Power Supply Input
100 BRAKE_H
O Terminal for tray control 3
23 Terminal Function of ICs
107
SA-PT250EE
24 Exploded Views
108
SA-PT250EE
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