Sony DVCAM DSR-PDX10 Service Manual page 224

2-4. Tape Path Adjustment
2-4-1. Adjustment Preparation
1) Clean the tape running surface (tape guides, drum, capstan,
pinch roller) referring to Service Manual.
2) Connect adjustment remote commander (Ref. No. J-5) to the
LANC terminal of the machine. Set the HOLD switch to ON.
3) Connect an oscilloscope to the VC-318 board CN1008 via the
CPC-8 jig (Ref. No. J-8).
Scope channel 1: VC-318 board CN1008 pin w; (Note)
External trigger: VC-318 board CN1008 pin qj
Note: Connect CN1008 pin w; and pin ql (GND) with 75 Ω resistor
(1-247-804-11).
4) Play the tracking alignment tape (XH2-1A1)(Ref. No. J-18) back.
5) Select page: 0, address: 10 and set data: 00.
6) Select page: 3, address: 33 and set data: 08.
7) Select page: 3, address: 26 and set data: 31.
8) Confirm that RF waveform on scope is normal in both entrance
side and exit side. (Refer to Fig. 6-2-30 A).
If RF waveform is not normal in entrance side and exit side,
perform the adjustment of section 4-2. and later. (Refer to Fig.
6-2-30 B and C).
9) When the required conditions of step 8) are satisfied and
adjustment/check are complete, perform [Required work upon
completion of adjustment] as described below.
[Required work upon completion of adjustment]
1) Connect adjustment remote commander (Ref. No. J-5) to the
LANC terminal of the machine. Set the HOLD switch to ON.
2) Select page: 0, address: 10 and set data: 00.
3) Select page: 3, address: 26 and set data: 00.
4) Select page: 3, address: 33 and set data: 00.
Check this section
Entrance side
(Normal waveform)
CH1
CH2
(Trigger)
3.3msec
Entrance side
Tape runs while keeping
contact with upper flange
TG2
TG1 TG3 TG4
TG2 guide
TG3 and TG4 zenith
adjustment screw
TG3 guide
TG1 guide
TG4 guide
S-reel
6-69
DSR-PDX10/PDX10P
Exit side
Fig. 6-2-29.
Exit side
Normal
A
Entrance side is defective
B
Exit side is defective
C
Fig. 6-2-30.
Tape runs while keeping
contact with upper flange
FWD
Tape
TG5 TG6
Capstan
TG7 guide
TG6 guide
Capstan
Drum
Pinch roller
TG5 guide
TG6 guide zenith
adjustment screw
T-reel
Fig. 6-2-31.
TG7