Main Block - Panasonic CQ-4400U Service Manual

15.1. Main Block

IC601 YEAM17708621
Name Description
Pin
No.
1 BATT Battery Detection
2 (NC) (Connect to
Ground)
3 MODE2 Tape Detection
input
4 (NC) (Connect to
Ground)
5 MS No sound
Detection (TPS)
6 R-REEL Reel Pulse
Detection(R)
7 F-REEL Reel Pulse
Detection(F)
8 (NC) -
9 ST Stereo Signal
Input
10 MTL Deck Metal
Output H:ON L:
OFF
11 DOLBY Dolby NR ON/
ON/OFF OFF H:OFF L:ON
12 (NC) -
13 MS GAIN Music Search
Gain Control
14 ACC ACC Detection
15 MMT-F Main Motor
Control
16 CD Main Motor
MUTE Control
17 FM/AM FM/AM Select
BW Switch
18 RADIO AM/FM Tuner ON
ON
19 WB W/B Tuner ON
20 SSC FM/AM SSC
Control
21 GND Ground
22 (NC) -
23 (NC) -
24 INIT B (Pull-down)
25 INIT A (Connect to
Ground)
I/O Vol. (V)
AM FM TAPE
I 5.3 2.5 5.3
| - - -
I 4.7 4.7 4.7
- - - -
I O O O
I 1.5 2.3 3
I 1.4 2 3.1
- - - -
I 4.6 4.6 4.6
O 0 0 0
O 0 0 0
- - - -
O 0 0 0
I 5.2 5.2 5.2
I/O 4.8 4.8 4.8
I/O 0 0 0
O 8.1 0 0.1
O 0 0 0.1
O 7.1 7.1 7.1
O 0 0 0
- 0 0 0
- - - -
- - - -
- 0 0 0
- 0 0 0
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