Sony TC-KB820S - Troubleshooting Guide

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Record Level Adjustment
Setting:
REC LEVEL control: Standard Record (See page 10.)
Procedure:
1. Mode: record
2. Mode: playback
3. Adjust RV111 (L-CH) and RV211 (R-CH) so that the reading
on level meter meets the adjustment limits below.
Adjustment Limits: –3.8 ± 0.5 dB (0.47 to 0.53 V)
Adjustment Location: MAIN board
[AUDIO BOARD] –SIDE A –
set
AF OSC
Attenuator
600
Ω
10 k Ω
CS-123
blank tape
LINE IN
315 Hz, 0.5 V (–3.8 dB)
+
–
set
LINE OUT
47 k
Ω
recorded
portion
level mete
r
Adjustment Location:
[MAIN BOARD] –COMPONENT SIDE –
DOLBY-S
BOARD
RV211 RV111
J501
CN831 CN833
TP801
RV72
RV71
RV21
RV11
T81
T91
RV81
IC31
TP81
RV91