Panasonic CQ-RX100L, Service Manual

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