Technical Descriptions - Panasonic CQ-C1335U Service Manual

4 Technical Descriptions

4.1. Terminals Description
4.1.1. Main Block
IC601 : YESAM386
Pin Port Description
No
1 XIN Crystal ocillator (4.5MHz)
2 TEST2 GND
3 VREG Connected with capacitor
4 VSSCPU GND
5 LCD DO Serial data from LCD
6 LCD DI Serial data to LCD
7 LCD SCK Serial data to LCD
8 LCD CE Chip enable for LCD CPU O
9 PANEL Front panel detection
10 POWER LED Power LED drive
11 MODE B Rotary encoder detection
for volume
12 MODE A Rotary encoder detection
for volume
13 CD DO Serial data from CD
14 CD DI Serial data to CD
15 CD CLK Serial clock for CD
16 CD CE CD chip enable
17 CD EM Ejecting mode for Sled
motor
18 CD LM Loading mode for Sled
motor
19 CD S/L Sleding/Loading mode
switch
20 SUB READY Sub ready from CD servo
21 CD IN SW1 CD detection switch 1
22 CD SW2 CD detection switch 2
23 CD LIMIT CD limit detection switch
SW
24 CD MUTE CD mute
25 CD RST CD reset
26 CD DMUTE Mute for Pick-up driver
27 CD ERROR CD error status
28 REG READY Reg. ready from CD servo
(NEW)
29 NC GND
30 NC GND
31 NC GND
32 NC GND
33 NC Not connected
34 NC Not connected
35 TBASS Not connected
36 NC Not connected
37 NC Not connected
38 NC Not connected
39 VDDPORT +5V power supply
40 VSSPORT GND
41 NC Not connected
42 NC Not connected
43 NC Not connected
44 NC Not connected
45 NC Not connected
46 NC Not connected
47 NC Not connected
48 NC Not connected
49 PWR CNT System power supply
control
50 AMP CNT Power supply control for
External amplifier
Pin
No
51 ANT CNT
52 TEL MUTE
53 BATT
54 NC
55 AMP MUTE
56 STBY
I/O Vol. (V)
FM AM CD
57 NC
I 2.5 2.5 2.5
58 AF MUTE
- 0 0 0
59 I2C DATA
- 3 3 3
- 0 0 0
60 I2C CLK
I 5 5 5
O 5 5 5
61 NC
O 5.1 5.1 5.1
62 NC
0 0 0.3
63 NC
I 5 5 5
64 NC
O 0 0 0
65 NC
I 5 5 5
66 NC
67 SSC
I 5 5 5
68 NC
69 RDS CLK
I 5.1 5.1 4.8
O 0 0 5
70 REM IN
O 5 5 5
71 NC
O 0 0 1.3
72 NC
O 0 0 0
73 NC
74 MONO
O 0 0 0
75 AM MODE
O 5.1 5.1 5.1
76 FM MODE
I 5.1 5.1 5
77 NC
I 0 0 0
78 INIT C
I 0 0 0
79 INIT B
I 5.1 5.1 5.1
80 INIT A
81 VSSADC
I 0.2 0.2 5.1
82 RDS DATA
O 5 5 5
O 0 0 5.1
83 ST
I 0 0 0
84 SD FM/AM
I 5.1 5.1 0
85 NC
86 RESET
- 0 0 0
87 ACC
- 0 0 0
88 NC
- 0 0 0
89 NC
- 0 0 0
90 FM/AM IFC
- - - -
- - - -
91 NC
- - - -
92 SUBPD
- - - -
93 VDDPLL
- - - -
94 NC
- - - -
95 OSC FM/AM FM/AM local oscillation
I 5.1 5.1 5.1
- 0 0 0
96 VSSPLL
- - - -
97 NC
- - - -
98 EO1
- - - -
- - - -
99 TEST1
- - - -
100 XOUT
- - - -
- - - -
- - - -
O 5 5 5
O 5.1 5.1 5.1
5
Port Description
Not connected
Telephone mute
Battery level detection
Not connected
Mute for Power amplifier
Standby mode for Power
amplifier
Not connected
Audio signal mute
Serial data for Electronic
Volume
Serial clock for Electronic
Volume
Not connected
Not connected
Not connected
Not connected
Not connected
Not connected
SD sensitivity control
Not connected
RDS (Radio Data Sys-
tem) clock
Remote control data
Not connected
Not connected
Not connected
Monaural mode
Power supply control for
AM mode
Power supply control for
FM mode
GND
GND
GND
GND
GND
RDS (Radio Data Sys-
tem) data
FM stereo indication
Signal level of FM/AM
GND
Pulled-up
ACC level detection
GND
GND
FM/AM center frequency
input
GND
Not connected
+5V power supply
GND
frequency
GND
Not connected
FM/AM phase detection
error output
GND
Crystal oscillator
(4.5MHz)
I/O Vol. (V)
FM AM CD
- 5.1 5.1 5.1
I 5.1 5.1 5.1
I 5.1 5.1 5.1
- - - -
O 5.1 5.1 5.1
O 5.1 5.1 5.1
- - - -
O 5.1 5.1 5.1
O 5.1 5.1 5.1
O 5.1 5.1 5.1
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
O 0 0 5.1
- - - -
I 2.5 2.5 2.5
I 5 5 5
- - - -
- - - -
- - - -
O 0 0 0
O 8.3 0 8.3
O 0 8.3 0
- 0 0 0
- 0 0 0
- 0 0 0
I 0 0 0
- 0 0 0
I 2.9 0 2.9
I 5.1 5.1 0.3
I 0 0 0
- 0 0 0
I 5 5 5
I 5.3 5.3 5.3
- 0 0 0
- 0 0 0
I 1.5 1.5 1.5
- 0 0 0
- 0.4 0.4 0.4
I 5.1 5.1 5.1
- 0 0 0
I 1.4 1.4 1.4
- 0 0 0
- - - -
O 2.3 2.2 2.2
- 0 0 0
O 2.6 2.6 2.6