Panasonic CQ-RX200U Service Manual page 7

Pin Port Description
No
52 LCD CE Chip enable for LCD CPU
53 E-VOL I2C Serial data for Audio signal
DATA processor (volume)
54 E-VOL I2C Serial clock for Audio sig-
CLK nal processor
55 VDD +5V power supply
56 VSS Ground
57 E-VOL MUTE Not connected
58 POWER CNT System power supply con-
trol
59 STBY Standby mode for Power
amplifier
60 NC Not connected
61 NC Not connected
62 SUB CLK Not connected
OUT
63 NC Not connected
64 BEEP Not connected
65 USB IN Not connected
66 ACC ACC level detection
67 NC Not connected
68 MODE B Rotary encoder detection
B for volume
69 MODE A Rotary encoder detection
A for volume
70 EXT MUTE Not connected
71 PANEL IN Front panel detection
72 BATT Battery level detection
73 RDS DATA Not connected
74 CDC REM Not connected
OUT
75 HUB-TX Not connected
76 HUB-RX Not connected
77 USB RXD Not connected
78 USB TXD Not connected
79 FM MODE Power supply control for
FM mode
80 AM MODE Power supply control for
AM mode
81 MONO Not connected
82 ST FM stereo indication
83 DI/DO Not connected
84 CS Not connected
85 SK Not connected
86 NC Not connected
87 VREG Connected to capacitor
88 VSS Ground
89 VDD (PLL) +5V power supply
90 OSC FM/AM FM/AM local oscillation
frequency
91 NC Ground
92 FM/AM IFC FM/AM center frequency
93 NC Ground
94 EO FM/AM phase detection
error
95 SUBPD Not connected
96 SSC SD sensitivity control
97 ANT CNT Not connected
98 AMP CNT Not connected
99 AF MUTE Audio signal mute
100 AMP MUTE Mute for Power amplifier
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I/O Vol [V]
FM AM CD
O 0 0 0
O 4.9 4.9 4.9
O 4.9 4.9 4.9
- 4.9 4.9 4.9
- 0 0 0
- 0 0 0
O 4.9 4.9 4.9
O 4.9 4.9 4.9
- 0 0 0
- 0 0 0
- 0 0 0
- 0 0 0
- - - -
- 0 0 0
I 5.2 5.2 5.2
- 0 0 0
I 5.0 5.0 5.0
I 5.0 5.0 5.0
- 0 0 0
I 4.9 4.9 4.9
I 4.6 4.6 4.6
- 2.5 0 0
- - - -
- - - -
- - - -
- 0 0 0
- 0 0 0
O 4.9 0 0
O 0 4.9 0
- 0 0 0
I 5.1 5.1 5.1
- - - -
- - - -
- - - -
- 0 0 0
- 3.0 3.0 3.0
- 0 0 0
- 5.0 5.0 5.0
I 1.4 1.4 1.4
- 0 0 0
I 0 0 0
- 0 0 0
O 2.2 2.2 2.2
- 0 0 0
O 0 0 0
- 4.9 4.9 4.9
- 4.9 4.9 4.9
O 0 0 0
O 4.9 4.9 4.9
7
4.2. IC Block Diagram
4.2.1. Main Block
IC201 : YESAM440
IC271 : C1EA00000041
IC671 : YESAM391
IC751 : YESAM424