Setting; Setting A - Canon ZR70 MC A Service Manual

2. Setting

(1) Adjustments other than DMC-III : Perform adjustments in the product state.
(2) Tracking adjustment (DMC-III) and Envelope check : Perform them with the Setting A.
(3) Adjustments related to DMC-III other than Tracking adjustment, tape path system check and tape path system cleaning : Perform
them with the Setting B.

2-1 Setting A

Envelope Check)
(1) Detach the Lithium Battery Cover.
(2) Connect the extension connector (DY9-1387-000) to
CN2900.
(3) Observe the PB-RF waveform output from the extension con-
nector
Extension connector (DY9-1387-000)
Pin No. Signal Designation
7 GND
19 SWP
21 GND
23 PBRF
Tracking Adjustment)
(1) Remove the CASSETTE COVER referring to Fig. 3-2 (a).
(2) When the posts are going to be adjusted, eject and remove the cassette once and perform the prospective adjustment as shown in
Fig. 3-2 (b).
(3) Repeat the observation of the PB-RF waveform and the prospective adjustment until fluctuation of envelope is re-moved.
Note : When the tracking adjustment is going to be performed, refer to Chapter 2-8 on page 4-48 : Tape Path Adjustment.
(a)
CASSETTE COVER
× 2
CHAPTER 3. INFORMATION FOR REPAIR · SERVICE HINTS
DY9-1387-000
(b)
× 2
Fig. 3-2
3-2
ZR70 MC A, ZR65 MC A, ZR60 A
Fig. 3-1
ADJUSTMENT DRIVER