Tuner Adjustment - Marantz PS2100N1S Service Manual

3. TUNER ADJUSTMENT

1. AM auto stop Level Check
Sou rce Sign al
Inpu t Signal Sign al
Step Outpu t Level and
Connection Frequ ency
Modulation
Sign al generator Level 54 dB/m
1
ou tpu t to
transmission loop 999 kHz
antenn a.
Level 60 dB/m
2 ('Stand ard
(1000 V/m)
requ ired loop )
*Set RA11 first TUNED OFF (disappear TUNED) and 2nd set to TUNED ON (appear TUNED).
*Auto scan mode activates that push and hold [
2. FM Adjustment
2.1 F M MONO. Distortion Adjustment.
Inpu t Signal Sign al Sou rce Signal Outpu t
Step
Connection Frequ ency Level and Modulation
Sign al generator Level 500 V (54 dB)
ou tpu t to FM Mono 1kHz
1 100.1MHz
antenn a terminal Dev. 75kHz 100%(C)
(75oh ms) Dev. 40kHz 53%(N)
2.2 FM Muting Thresho ld Check
First of all , check il luminates " AUTO" on LCD. If shows " MONO" on LCD, press [TUNER MODE] butt on on un it or
remote that to set the AUTO mod e. LCD shows " AUTO" . Input the signal and receipt it.
Sou rce Sign al
Inpu t Signal Signal
Step Outpu t Level and
Connection Frequency
Modu lation
Level 6.3 V(16dB)
Mono 1kHz/
1
Signal generator Dev. 75kHz (C)
ou tpu t to FM
100.1MHz
antenn a terminal
(75oh ms)
2 Level 12 V(22dB)
Remark: AUTO MODE: [MODE] butt on in tun er mod e on remote.
Reception Adjust.
P–No.
Frequ ency po int
M08 999 kHz RA11
(500 V/m)
Only
AUTO SCAN
Con firm
] button on remote controller RC2100SR.
Reception Adjust.
P-No.
Frequ ency Point
M03
100.1MHz L201
MONO
Reception Adjust.
P–No.
Frequ ency po int
M03 ---
100.1MHz
40kHz (N)
Only
AUTO SCAN
Con firm
3
2.3 FM STEREO Dis to r tion A d ju s tm en t
A d ju s t the L - ch ann el w ith th e RF s ign al m odu lated on ly L - ch an nel firs t and c on firm the R-ch ann el w ith
Adjustment
Value
RF s ign al m odu lated on ly R-ch annel.
"TUNED"
Input
ind icates on
Signal
LCD Step
Connec tion Frequ en cy
Stop scan and
"TUNED"
Ind icates on
1
LCD
Signal
2 g en erato r
ou tpu t to
FM
an tenna
Adjustment
Value term in al
Distortion
(75 ohm s )
Level
3
Minimum at
VCR-OUT
2.4 FM STEREO Sep aration A d ju s tm en t
Inpu t
Signal
Step
Adjustment Connection Frequ en cy
Value
1
"TUNED"
ind icates on
LCD
Sign al
Stop scan
g en erato r
2
and "TUNED"
ou tpu t to
Ind icates on
FM
LCD
an tenna
term in al
(75 ohm s )
3
Signal Sourc e Sig n al Ou tput
P–No .
L eve l and Modulation
L eve l 500 V(54d B )
On ly L -ch 1k Hz/
Dev. 67.5k Hz 90 % (C)
40k Hz 53.3% (N)
Pilo t 19k Hz/
100.1MHz Dec . 6.75k Hz 9% (C) M03
6k Hz 8% (N)
On ly R-ch
Signal Sou rc e Sig n al Ou tpu t
P–No .
Leve l and Modu lation
L eve l 500 V(54d B )
On ly L -ch 1k Hz/
Dev. 67.5k Hz 90 % (C)
40k Hz 53.3% (N)
Pil o t 19k Hz/
100.1MHz
Dec . 6.75k Hz 9% (C) M03
6k Hz 8% (N)
On ly R-ch
4
Recep tion A d ju s t. A d ju s tmen t
Frequency poin t Valu e
Dis to r tion
IF COIL L eve l
in Fron t Minimum
End at VCR-OUT
L -ch .
100.1MHz
Dis to r tion
L eve l
On ly Similar
Confirm as L -ch at
VCR-OUT
R-ch .
Rece p tion A d ju s t. A d ju s tm en t
Frequ en cy po in t Valu e
Ou tpu t L eve l
Minimum
at VCR-OUT
R-ch .
100.1MHz R211
Ou tpu t L eve l
Similar
as R-ch at
VCR-OUT
L -ch .