Toshiba D-VR3SU, Service Manual

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Circuit Operating Descriptions
7-39
(3) Pin Port Description (Tuner Mode ; 1KHz, 100% Modulation Input)
PIN NO. PIN NAME DC VOLT. SIGNAL REMARK
1 LINE MUTE 0 / 5 - Reduce the line out noise.
2 Linear out to TM 4.2 V -17 dbm Converter Model Only
3 Vcc 9V 9 V Power Supply for in/out Select
4 Linear Input 2.5 V - 28.2 dBV Audio from A/V IC
5 Vcc 5V 5 V Power Supply for in/out Select
6 Linear out ti A/V 2.5 V -21.5 dBV Audio out to A/V IC
7 EXT1-INPUT (L) 0 -28.2 dBV Line Input 1 ( FRONT )
8 ALC Detector - ALC Detector for RF converter
9 EXT2-INPUT (L) 0 -28.2 dBV Line Input 2 ( REAR )
10 GND -
11 EXT3-INPUT (L) 0 -28.2 dBV Line Input 3 ( DVD )
12 Monitor Input (L) 2.5 V DVD Audio (L) Input
13
Input changeover
2.2 V -21 dBV
PB/REC sitch output .
switch output (L) Transform R/P signals into DC.
14 ALC Input (L) 2.5 V -21 dBV ALC Input Terminal
15 Vcc 5V 5 V Power Supply for in/out Select
16 1/2 Vcc 2.5 V 1/2 Vcc Terminal
17 Rec Mute Terminal 0 V GND ( Not in use )
18 NR Waiting Det - - Terminal for waiting dector
19 NR Waiting Filter 2.5 V NR Waiting Filter 1 For L-CH
20 NR Waiting Filter 2.5 V NR Waiting Filter 2 For L-CH
21 CCA Reference CCA Reference for L-CH
22 NR Empha NR Empahasis for L-CH
23 Tracking DC out 0 ~ 5 v Hi-Fi Env Det Level Output
24 Audio Pb FM1 2 V / 4 V Audio Playbak FM 1 input ( H )
25 GND Hi-Fi PRE-AMP GND
26 REC Current OUT Rec current out to Head
27 Audio Pb FM2 2 V / 4 V Audio Playbak FM 2 input ( L )
28 Crrent adjust 2.4 V Rec Current adjust point
29 Alc detector ALC detection
30 Hi-Fi detector Hi-Fi/ Normal detect
31 Monitor 2.5 V FM Monitor
32 Vcc 5V 5 V Power Supply for Hi-Fi
33 Pb FM Out 2.5 V Output of H’D Amp in PB Mode
34 Pb FM Input - 350 mVp-p Input of FM in PB Mode
35 GND GND FOR LOGIC
36 Vcc 5V 5 V Power Supply for LOGIC
37 Serial data input 0 / 5 V
38 Serial clock input 0 / 5 V
39 Audio head s/w 0 / 5 V Head s/w 30 hz input
40 Mts Mode out 1V : mo / 2V : St / 3V : Bi