5-2
1-1. Adjusting items when replacing main parts and boards
• Adjusting items when replacing main parts
When replacing main parts, adjust the items indicated by
z
in the following table.
Replaced part
Block
replacement
Mounted part replacement
Adjustment Section
Adjustment
(Drum assembly)
(Capstan motor)
(TRW)
(TRF)
(A/D CONV.)
(CLOCK GEN.)
(VFD)
(C DECODE)
(Y/C SEP.)
Mechanism deck
Mechanism deck M901
Mechanism deck M903
PR-234 board IC101
RP-234 board IC201
JC-20 board IC1108-1110
JC-20 board IC2204
JC-20 board IC3300
VD-031 board IC106
VD-031 board IC701
System control
Initialization of C, D, E page data
Node unique ID No. input
Servo, RF
CAPSTAN FG adj.
z
z
Switching position adj.
z
z
RF-AGC adj.
z
z
z
z
CLK DELAY and AEQ adj.
z
z
z
z
PLL f
0
adj.
z
z
z
z
Video
VFD SPCK adj.
z
A/D converter reference voltage adj.
z
Y/CR/CB clamp reference voltageadj.
z
AFC picture frame adj.
z
AFC adj.
z
Playback Y/C level adj.
z
Decoder free run adj.
z
Y/C separation adj.
z
REC signal level adj.
z
HUE adj.
z
Mechanism
Tape path adj.
z
z
z
Table 5-1-1 (1)
