3-3
ELECTRICAL ADJUSTMENT PROCEDURES
1. Servo Adjustment
1) PG Adjustment
• Adjustment And Specification
• Test Equipment
a) OSCILLOSCOPE
b) NTSC MODEL : NTSC SP TEST TAPE
MODE
PLAY
• Adjustment Procedure
a) Insert the SP Test Tape and play.
b) Connect the CH1 of the oscilloscope to the H/SW(W861, W862) and CH2 to the Video Out for the VCR.
c) Trigger the mixed Combo Video Signal of CH2 to the CH1 H/SW(W861, W862), and then check the dis-
tance (time difference), which is from the selected A(B) Head point of the H/SW(W861, W862) signal to
the starting point of the vertical synchronized signal, to 6.5H ± 0.5H (412µs, 1H=63µs).
Note - Adjust the distance of X, pressing the Tr) or Tracking(-) when the “ATR” is blink after the
SP Test Tape is inserted.
• PG Adjustment Method
a-1) Payback the SP standard tape
b-2) Press the “OK(ENTER)” key on the Remote controller and the “REC” key on the Front Panel the same
time, then it goes in to Tracking initial mode.
c-3) Repeat the above step(No.b-2), then it finishes the PG adjusting automatically.
d-4) Stop the playback, then it goes out to PG adjusting mode after mony the PG data.
• CONNECTION
• WAVEFORM
V.Out
H/SW(W861, W862)
R/C TRK JIG KEY
6.5 ± 0.5H
MEASUREMENT POINT
ADJUSTMENT POINT
SPECIFICATION
V.Out
H/SW(W861, W862)
OSCILLOSCOPE
CH1 CH2
V.out
H/SW
R/C KEY
(W861, W862)
H/SW
Composite
VIDEO
6.5H(412
µ
s)
VCR PART
Summary of Contents for ABV341 Series
Page 2: ......
Page 36: ...3 34 3 35 2 TU IF CIRCUIT DIAGRAM PB REC...
Page 39: ...3 40 3 41 5 JACK CIRCUIT DIAGRAM...
Page 41: ...3 44 3 45 7 TIMER CIRCUIT DIAGRAM XBV343...
Page 42: ...3 46 3 47 8 TIMER CIRCUIT DIAGRAM XBV342...
Page 45: ...3 52 3 53 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...
Page 65: ...02 12 04 R17149A ZENITH DAP202K 3 80 3 81 6 JACK CIRCUIT DIAGRAM...
Page 70: ...LOCATION GUIDE 3 90 3 91 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW...
Page 71: ...LOCATION GUIDE 3 92 3 93 2 MAIN P C BOARD BOTTOM VIEW...
Page 99: ...3 123 3 124 3 AUDIO CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17447A...
Page 100: ...3 125 3 126 4 AV JACK CIRCUIT DIAGRAM COMBI SCART MTK 03 3 25 SR17446A...
Page 103: ...3 131 3 132 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...
Page 134: ...4 22 GEAR F R GEAR AY P2 P3 F R Lever Tension Base Boss CAM...
