10-8
HDW-750/750CE V1
10-3. CUE Audio Alignment
10-3-1. Bias Trap Adjustment
Preparation
Remove the DCP-28 board, DVP-18 board and mechanism
deck dust protection sheet.
Adjustment Procedure
1.
Insert a working tape and enter the REC mode.
2.
Equipment :
Oscilloscope
Measurement point : TP602 (D-6)/MDC-13 board
GND :
E501 (C-5)/MDC-13 board
Adjustment point :
1
LV601 (C-6)/MDC-13 board
Specifications :
A = minimum
(Reference value : 2.5 Vp-p or less)
3.
Eject the working tape.
10-3-2. CUE Playback Level Adjustment
Preparation
.
S502 (A-3)/FP-121 board (B side)
→
ON
.
DISPLAY CTL/TC/DATA switch/inside panel
→
TC
. 1
RV603 (D-6) /MDC-13
→
Mechanical center
. 1
RV604 (D-6) /MDC-13 board (B side)
→
Mechanical center
Adjustment Procedure
1.
Insert the alignment tape (HR5-1A) and playback the 1
kHz, 0 VU signal segment (TIME; 00 : 00 : 00 : 00 to
00 : 01 : 25 : 00).
(The playback frequency for the HDW-750CE is 833 Hz.)
Equipment :
Audio analyzer
Measurement point : AUDIO OUT connector/
rear panel
CH1 (X) : Pin-2
CH1 (Y) : Pin-3
GND :
Pin-1
Adjustment point :
1
RV605 (D-6)/MDC-13 board
(B side)
Specifications :
0.0
±
0.1 dBm (600
Z
)
2.
Playback the 1 kHz,
_
20 VU signal segment (TIME ;
00 : 01 : 30 : 00 to 00 : 02 : 25 : 00).
(The playback frequency for the HDW-750CE is 833 Hz.)
Equipment :
Audio analyzer
Measurement point : AUDIO OUT connector/
rear panel
CH1 (X) : Pin-2
CH1 (Y) : Pin-3
GND :
Pin-1
Measure the playback signal level.
3.
Playback the 7 kHz,
_
20 VU signal segment (TIME ;
00 : 03 : 00 : 00 to 00 : 03 : 25 : 00).
(The playback frequency for the HDW-750CE is 5.8 kHz.)
Equipment :
Audio analyzer
Measurement point : AUDIO OUT connector/
rear panel
CH1 (X) : Pin-2
CH1 (Y) : Pin-3
GND :
Pin-1
Adjustment point :
1
RV604 (D-6)/MDC-13 board
(B side)
Specifications :
Within
±
0.2 dBm with reference
to the 1 kHz playback level
A
10-3. CUE Audio Alignment
