Teac V-970X - 5-4 Monitor Performance; Minimum and Specified Line Input Levels; Meter and Headphone Output Levels; CD Level Check

5-4. MONITOR PERFORMANCE
ET a FR
Deck settings
Mode : RECORD/PAUSE (Except item 11 )
MASTER REC LEVEL cont. Maximum
AUTO MONITOR sw. . : SOURCE
NR SYSTEM sw. 2 OUT
MPX FILTER sw. 2 OUT
V-970X/R-919X
ADJUST
(or CHECK)
me
INPUT SIGNAL
ANNES
. Min. LINE
input level
WAY
R/NADVAIL
LINE IN (U/R) :
400 Hz / -19 dB
( 86.9 mv )
Connection
MEASURING POINT,
RESULT REMARKS
BE GAP + PARCL %
OUTPUT (L/R)
-5 dB + 3 dB
( 308 mV -~ 615 mV )
LINE IN (L/R) :
400HZ/-9dB (275mV)
PRESET cont.
. Specified (L/R)
LINE input level
LINE #RAH Connection
OUTPUT (L/R)
-10 dB ( 245 BV )
DAI : After adjusting, do not move the PRESET cont. (L/R). ( Specific position )
. MEter level
X~-B* VAIL
LINE IN (L/R) :
Connect ion A00H2/-94B (275mV)
. PHONES
output level
PHONES tH7)
VAI
Connection Fig. 5-11
PHONES LEVEL cont. : Max.
LINE IN (L/R) :
400HZ/-9dB (275mV)
. CD level check | Connection : Fig,5-1
STOP mode
VAIL: Fxy¥7 {CD LEVEL CHECK sw. : Set
LINE IN (L/R) :
400 Hz / -12 dB
(195 mV )
oscillator
DECK unde test
LINE IN
TEST LOAD RESISTORS
73 — Hin
MRIS PRESET DEALHMABWCE.
PEAK LEVEL meter ( L/R) :
0 dB (RED)
PHONES
At each channel
BFVAVE
-15 dB +3 dB
(97.5 mV ~ 195 mV )
LED: lit) | FAxT
PEAK LEVEL meter (L/R)
0 dB
Fig. 5-11 Test setup for PHONES check R—-> WHITHER
Frequency Counter
See
HOT GNO ie) ie)
(dB)
+6 iu
MAIN PCB TP.5
°o
DECK GND°
under TEST
Fig. 5-12 Test setup for bias osc. frequency adjustment
N44 PARIRE KR SIE Reee
NR OUT
—~—--- NR IN
+4
+2
-2
-4
25 Pook
400 12.5% (Hz)
Fig. 5-13 Overall frequency response (NR OUT)
oR SER BS te
17