Table of Contents
Advertisement
PC-G33
PC-G33
Rec. Bal- | Rec. Level
Switch Position
Test Value
Test Tape | ance Con-
Control
trol R408
R407
TAPE
| NR
INPUT
Adjustment
. Test Tapes:
MTT-111
(Speed 3 kHz — 5 dB)
3000
MTT-114 (Azimuth 10 kHz)
2
Tape Speed
+30 Hz
MTT-111
OUT
MTT-150 (Dolby 400 Hz Modulation)
|
AC-512 (Chrome Tape)
6. Frequency Counter
Playback
|
3
Sensitivity
500 + 10mV
MTT-150
OUT
Adjustment
Bias Oscillator
Line Input
Sensitivity
350 + 10mV
Center
|Adjustment|
CrQ,
OUT
Adjustment
_
sis ise
@ Power Supply: TE: 220V, TU/AY = 240V, TA, TC = 120V
@ Input:0dB1Vrms
@ LINE IN (Input Inpedance): 600 ohms
@ LINE OUT (Load Impedance): 47K ohm
@ Test Point Load Impedance: Non Load.
Adjustable
Parts
Adjusting
LINE OUT
Screw
Internal
Semifixed
Input Fre-
.
VTVM
Apply a lock paint after
(LINE OUT) | adjustment.
Frequency
Counter
Take-up beginning of tape.
ees
(LINE OUT)
REC-VR
R407
;
Do not vary REC-VR after
LINE OUT
—20dB | See Figure 14
adjustment.
See Figure 15]
Variation of 10 kHz to 400 Hz.
400 Hz
.
Monitor Output:
350 mV
F
16
'
LINE IN
R495, 496
LINE OUT
20 dB
See
Figure
(Reference Value)
Playback test tape (MTT-150) and
adjust until +3 dB LED (RED) light
up.
R583, 584
00
| on oe | co oom | oes meee |
—6
—3
0
+3
|
|
oe | ee ee |
. Resistance Attenuator
. Screwdriver
TEST EQUIPMENTS
_VTVM
(Vacuum Tube Voltmeter)
. Signal Generator
|
oh
WN
-—
VR of
LINE OUT
BAL-VR R408
Rec/PB
Frequency
Adjustment
LINE IN
LINE OUT
Record/Playback Head
Adjusting
Screw
Rec/PB
Sensitivity
Adjustment
Monitor Output
LED Meter
Level
Adjustment
Figure 10
2. TAPE SPEED
Measurement
Condition
J
LINE OUT
OM"2
400 Hz
Advertisement
Table of Contents
