Level Meter Check; Leader Tape Detect Adjustment - Pioneer CT-7R Service Manual

12.9 LEVEL METER CHECK
Setting:
MODE
Input signal
(from INPUT)
AC mV meter
Step 2.
Setting:
Mode
Tape .
AC mV meter
Playback
Cassette half without
tape
TP302 of the Mother
assembly
I
Record pause
333H2, - 10dBv
(316mV)
DOLBY
DOLBY
Procedure:
Adjust the INPUT level control so that the level
meter reads 0 VU. Then check the AC mV meter
reads - 5.2dBvt2dB.
12.10. LEADER TAPE DETECT ADJUSTMENT
Step 1.
Setting:
Procedure:
1. Confirm that the AC mV meter reads - 10dBv
(0.6V P-P square wave).
2.If l- 10dBv is exceeded, bridge the section shown
in Fig. 12-7 by soldering.
Soldering point
TP601 of the
NR assembly L
TP601 of the
NR assembly R
3 3 3 H 2
- l f r B v
{ 3 1 6 m v l
I
Mode .
Input Slgnal
DC mV meter
Stop
2kHz, - 17dBv (0.4V P-P
Sin wave) to TP302 of
the Mother assembly
TP303 of the Mother
assembly
Procedure:
1. Remove the connector
assembly.
2. Adjust the VR306 so
reads 10.5V10.25V.
3. Return the connector
position.
of the Mother
DC mV meter
to the original
cN315
that the
cN315