Pin | Symbol | I/O | Functions |
|
16 | NRSW | I | Dolby NR control L:NR OFF H:NR ON |
|
17 | INSW | I | Line amplifier input select control L:TAPE IN | H:AUX IN |
18 | METAL | I | Playback equalizer amplifier control L:120us | H:70us |
19 | DRSW | I | Head select control L:FORWARD H:REVERSE | |
20 | FF/REW | I | Music sensor mode control Low(open):G1 | High:G2 |
21 | MSSW | I | Music sensor control Low(open):MS on High:MS OFF | |
22 | NC | - | Non connection |
|
23 | TCH2 | - | Time constant for the HLS |
|
24 | LINEOUT2 | O | Line output |
|
25 | DIREF | - | Resistance for setting the reference current (Connects 20(18)K | |
|
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| between DIREF pin and GND for the standard setting.) | |
26 | NC | - | Non connection. |
|
27 | TAPEIN2 | I | TAPE input. |
|
28 | GND | - | To ground. |
|
29 | PBOUT2 | O | Playback equalizer amplifier output. |
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30 | PBEQ2 | O | Resistance for selecting the playback equalizer amplifier time constant | |
31 | PBFB2 | I | Playback equalizer amplifier feedback. |
|
32 | NC | - | Non connection. |
|
33 | PBREF2 | O | Playback equalizer amplifier reference (Vcc/2 output) | |
34 | PBFIN2 | I | Playback equalizer amplifier input (FORWARD head connected) | |
35 | VCT | O | Center (Vcc/2 output) |
|
36 | PBGND | - | Playback equalizer amplifier ground (Connect to ground) | |
37 | PBFIN1 | I | Playback equalizer amplifier input (FORWARD head connected) | |
38 | PBREF1 | O | Playback equalizer amplifier reference (Vcc/2 output) | |
39 | NC | - | Non connection. |
|
40 | PBFB1 | I | Playback equalizer amplifier feedback. |
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NJM4565M-W (IC951,IC171,IC323) : Ope amp.
A OUTPUT | 1 | 8 | V+ |
A | 2 | 7 | B OUTPUT |
| A | B |
|
A +INPUT | 3 | 6 | B |
V- | 4 | 5 | B +INPUT |
