Service Manuals, User Guides, Schematic Diagrams or docs for : AIWA Video NC3600 aiwa_nc3600_p4lrh_mech

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                    NC3600 P4LRH English




SERVICE MANUAL
 VIDEO MECHANISM




                                             TA
                                           DA




             S/M Code No. 09-995-333-1N1
VCR TEST TAPE INTERCHANGEABILITY TABLE
There are two types of the new allgnment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (1)-(4)
are recorded for the times and in the order shown below.

                        (1) : 8min. fi (2) : 2min. fi (3) : 5min. fi (4) : 5min.

The TTV-MP1 (for M-PAL), TTV-MS1 (for MESECAM) and TTV-S1 (for SECAM) allgnment tapes have the same
contents as the previous tapes.

                Now in use TYPE                         New TYPE
Method                                                                                                  Application
          Model          Contents *1          Model         Contents *1


                      NTSC, Color bar,                   NTSC, Stairsteps,   PB-Y Level/General electrical ADJ.
         TTV-N1                              CH-1B(2)
                      1kHz, SP                           1kHz, SP            Head ACE Height/Tilt ADJ.

                      NTSC, Color bar,
         TTV-NS1                                       No Changed.           For S-VHS (SQPB) check
                      1kHz, SP

                      NTSC, Color bar,       CH-1B(4)    NTSC, Color bar,
         TTV-N1E                                                             Switching position ADJ.
                      1kHz, EP                 *2        1kHz, EP

                      NTSC, Color bar,
         TTV-NS6E                                      No Changed.           For S-VHS (SQPB) check
                      No sound, EP
NTSC
                      NTSC, Stairsteps,                  NTSC, Stairsteps,
         TTV-N2                              CH-1B(1)                        Head ACE Azimuth ADJ.
                      7kHz, SP                           7kHz, SP

         TTV-N12 NTSC, Color bar,                        NTSC, Color bar,    FM Envelope ADJ.
                                             CH-1B(4)
         (SCV-1998) 1kHz, SP                             1kHz, EP            X-Value ADJ.
         TTV-N6       NTSC, Mono scope,
                                                       No Changed.           For total picture quality check (resolution, etc)
         (TTV-N06T)   7kHz, SP

                      NTSC, Stairsteps,                  NTSC, Color bar,
         TTV-N7A                             CH-1B(3)    No sound SP,        HiFi Audio PB Level ADJ.
                      1kHz, SP, HiFi 400Hz               HiFi 400Hz

                                                                             Switching position ADJ.
                      PAL, Color bar,        CH-2(2)     PAL, Stairsteps,
         TTV-P1                                                              PB-Y Level/General electrical ADJ.
                      1kHz, SP                 *3        1kHz, SP
                                                                             Head ACE Height/Tilt ADJ.


                                                                             Switching position. (LP Model)
                      PAL, Color bar,                    PAL, Color bar,
         TTV-P1L                             CH-2(4)                         FM Envelope ADJ. (LP Model)
                      1kHz, LP                           1kHz, LP
                                                                             X-Value ADJ. (LP Model)

 PAL
                                                                             HEAD ACE Azimuth ADJ.
                      PAL, Stairsteps,                   PAL, Stairsteps,
         TTV-P2                              CH-2(1)                         FM Envelope ADJ. (SP Model)
                      6kHz, SP                           6kHz, SP
                                                                             X-Value ADJ. (SP Model)

         TTV-P6       PAL, Monoscope,
                                                       No Changed.           For total picture quality check (resolution, etc)
         (TTV-N06T)   6kHz, SP
                      PAL, Stairsteps,                   PAL, Color bar,
         TTV-P7       1kHz, SP,              CH-2(3)     No sound            HiFi Audio PB Level ADJ.
                      HiFi 1kHz                          SP, HiFi400Hz
                      PAL, Color bar,
         TTV-P16      400Hz,                           No Changed.           FM Filter ADJ.
                      SP, HiFi 1kHz



  * 1. Described in the order of color format. video signal. linear audio. tape speed and Hi-Fi audio.
  * 2. Use CH-1B (1)-(3) with models used exclusively in the SP mode.
  * 3. Use CH-2 (3) and (4) when it is necessary to observe the chroma signal.




                                                                      2
2. MECHANICAL ADJUSTMENT
     2-1. LOCATION OF MECHANISM PARTS
Head cleaner


                                                              ACE head
Drum brush                                               No. 8 guide cap
                                                             Pinch roller
Cylinder
                                                          Loading motor
assembly

FE head
S slider
                                                                 T slider

Tension lever                                           No. 9 guide lever
                                                            FL cam gear

S brake
Band brake                                                       T brake

                                                             T real table

S reel table                                              FL drive slider
FL arm lever




                                                            Center gear
Idle lever assembly                                         assembly

                                 Fig-2-1-1 Upper side




                                                            Top bracket




                                                        Cassette holder
                                                        assembly




FL cassette                                             Door open lever
guide assembly
                                 Fig-2-1-2 Upper side

                                          3
Capstan motor
                                                                                  T loading lever
                                                                                  assembly
Worm gear holder


                                                                                  S loading lever
Worm wheel                                                                        assembly
Reel belt
                                                                              Loading drive gear
Joint gear 1
Joint gear 2                                                                  Tension drive lever

Cam slider
                                                                                  Up/down lever

S-VHS switch                                                                       Holder clutch
                                                                                   assembly


Pinch drive lever




                                  Fig-2-1-3 Rear side




     2-2. SERVICE TOOL LIST

                                Torque cassette         Post height adjustment screwdriver
               Alignment tape
                                (SRK-VHT-103-404)       (SV-TG0-030-000)




                                            4
                      2-3. ALIGNMENT TAPES FOR ADJUSTMENT

                                                     Mechanism                              PAL
                               Adjustment item                                      SP/LP 2/4 head
                               FM envelope                                              TTV-P2L
                                                          Slant             Commercially available tape
                               A/C head                  Height                   TTV-P1 (TTV-P1L)
                                                         Azimuth                          TTV-P2
                               X value                                            TTV-P2 (TTV-P2L)
                               RG post slant                                Commercially available tape
                               Tape back-tension                                     SRK-VHT-103




                      2-4. GUIDELINE OF MAJOR PARTS REPLACEMENT
                           



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