Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic DVD-Video NV-VHD1BEUSVC EU NV-VHD1B SVC cy120101
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No. Port Name I/O Description P-OFF P-Save P-FAIL Reset
1 CURRENT_LIMIT O Capstan motor current limit terminal. Low Low Low Low
2 F ADJUST O Analogue voltage output for HEAD frequency response adjustment Low Low Low Low
3 N.C -- (No Connection.) --- --- --- ---
Terminal of the Current emphasis video/FM audio recording current.
[HIFI/2HEAD ]:Fix to Low (Normal mode)
4 C EMPHA(H) O [4HEAD] :Fix to Low (factory mode) Low Low Low Low
Fix to High (Insert/AV Insert mode)
Others (Depend on tape speed)
5 TRACKING_ENVE O Playback envelope input for auto tracking adjustment and cvc. In In In In
Tape running speed output terminal.(Output signal depens on tape speed)
6 SLP(H) O [High].........During NTSC_10H or PAL_9H mode Low Low Low Low
[Low ].........Except NTSC_10H or PAL_9H mode
Tape running speed output terminal.(Output signal depens on tape speed)
[High].........During NTSC_4H/6H or PAL_6H/9H mode
7 LP(H) O Low Low Low Low
[Low ].........Except NTSC_4H/6H or PAL_6H/9H mode
2HEAD model: Low Fix
Input terminal for "PB (H)" from AV2.
[High].........3.85V - 5.0V
8 CPB I In In In In
[Midd].........1.82V - 2.84V
[Low ]......... 0V - 0.81V
9 AFC S I "S-curve" Input terminal from tuner. In In In In
10 A-MUTE(H) O Audio mute output terminal for RF Converter. High High Low High
Input terminal for "PB (H)" from AV1.
[High].........3.85V - 5.0V
11 AV1_8IN I In In In In
[Midd].........1.82V - 2.84V
[Low ]......... 0V - 0.81V
Mode select terminal
[NORMAL mode ]: More than 4.0V
12 N/S/T2/T3 I [SERVICE mode]: 2.5V - 4.0V In In In In
[TEST_2 mode ]: 1.0V - 2.5V
[TEST_3 mode ]: 0V - 1.0V
Tape end sensor input terminal.(Photo sensor input from supply side)
13 S-PHOTO I [Black Tape]: more than 2.6V In In In In
[Lead Tape]: Less than 2.4V
Tape beginning sensor input terminal.(Photo sensor input from take-up side)
14 T-PHOTO I [Black Tape]: more than 2.6V In In In In
[Lead Tape]: Less than 2.4V
15 ABS_NORM(H) I (Input terminal for FM audio enverope output level detection) In In In In
16 N.C -- (No Connection.) Low Low Low Low
17 N.C -- (No Connection.) --- --- --- ---
18 N.C -- (No Connection.) --- --- --- ---
19 D.FM.REC(H) O Timing output terminal for FM_Audio recording current. Low Low Low Low
20 ART.V/H/N O Output terminal for Artificial V synchronization signal. Low Low Low Low
21 ROTARY.SW O Output terminal for rotary switch. Low Low Low Low
22 H.A.SW O Output terminal for HEAD AMP switch. Low Low Low Low
23 ENVE.SELECT I Input terminal for enverope selection. Low Low Low Low
24 VIDEO.H.SW O Output terminal for video HEAD switch. Low Low Low Low
25 A.H.SW O Output terminal for FM audio HEAD switch. Low Low Low Low
Audio Mute output terminal for tuner and decoder.
26 A.DEF(H) O Low Low Low Low
[High]...........During VCR mode is NORMAL PLAY and VV mode.
I/O control to switch IIC bus for LW-programmer.
27 PROG.ON(H) O H:IIC bus is connected to AV2. Low Low Low Low
L:IIC bus is not connected to AV2.
"PB-(H)"output terminal for AV2
*Details, refer to 21pin control specifications.
*The signal output from Pin-8 of 21pin terminal is shown below.
pin8
Name AVPB-H(L) AVPBM-(H)
28 AVPB-H(L) O High High Low High
High L Hi-Z
Middle H Hi-Z
Low H L
29 AVPB-M(H) I Low Low Low Low
30 GND(D) -- GND --- --- --- ---
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