Tuner Adjustment Table - Philips AZ4000 Service Manual

TUNER BOARD - LAYOUT DIAGRAM
(ECO6 PA)
1105 B7 2106 D6 2129 C5 2155 C5 2191 A2 5102 D7 5110 B3
1121 B6 2107 C6 2133 D3 2186 C1 2195 C1 5103 E7 5111 B4
1122 B5 2128 C4 2138 D2 2190 B1 3142 E1 5109 B4 5112 B3
TUNER BOARD ECO6 PA /
componentside view
AM-IF2
AM-AFC
FM-IF2
DISC.
FM-OSC.
VCO
LW
2101 B3 2119 C1 2130 D5 2140 D6 2150 C4 2166 C6 2194 C7
2103 E3 2120 C1 2131 D5 2141 D6 2152 E4 2167 C6 2196 A6
2104 B3 2122 C2 2132 D5 2144 C6 2153 D4 2169 A2 2197 C7
2108 D2 2123 C2 2134 E6 2145 A4 2159 D4 2187 B7 3101 E4
2109 D1 2124 C2 2135 D6 2146 C6 2161 B5 2188 C7 3102 D2
2110 C1 2125 C1 2136 A3 2147 A4 2163 B6 2189 E7 3103 D4
2111 C2 2126 D5 2137 A3 2148 B6 2164 D6 2192 B7 3104 B3
2112 B4 2127 D5 2139 D5 2149 E6 2165 C4 2193 A7 3105 C3
TUNER BOARD ECO6 PA /
copperside view
4 3
1 3 1 3 5
2 4 2 4
A
5104
MW
1 D
B
These assembly drawings show a summary of all possible versions.
For components used in a specific version see schematic diagram respectively partslist.
8 - 2
5114 B3 5122 B6 5131 E5 9101 B2 9104 B7 9107 D5 9110 E2
5119 D2 5123 B7 7104 C7 9102 D2 9105 D1 9108 C5 9111 C2
5121 C2 5130 D4 7105 D6 9103 B1 9106 C4 9109 E2 9112 D6
A
FM-IF1
AM-IF1
LW-OSC. MW-OSC.
FM-RF
AM-RF
FM-RF
LW-RF
MW
B
ECO6 PA combi layout 34450 stage .2, 110700
3106 E2 3128 B2 3152 A4 3161 A4 3186 A6 3194 D7 4107 D4
3107 C1 3132 E4 3153 A4 3166 B6 3187 B7 3195 E7 4108 D3
3108 C1 3134 C2 3155 E6 3167 E7 3188 A6 3196 C7 4109 D2
3109 D2 3137 C3 3156 B5 3169 C6 3189 B7 4101 D1 4110 D1
3113 B5 3141 D4 3157 A5 3170 A5 3190 B6 4102 D1 6103 B2
3119 B5 3143 D7 3158 B3 3176 D5 3191 C7 4104 C2 6105 C2
3123 E5 3144 A3 3159 A4 3180 C3 3192 B7 4105 B4 6106 D2
3125 E6 3145 E5 3160 A4 3181 D4 3193 D7 4106 C3 6120 A5
Vcc2
2
5105
LW
Vcc1
Vdd
black
C
5
ECO6 PA 34450 stage .2, 110700

TUNER ADJUSTMENT TABLE

Waverange
9113 D6
9114 E6
9115 D7
VARICAP ALIGNMENT
FM
87.5 - 108MHz
(65.81 - 74, 87.5 - 108MHz)
MW
FM/AM-version, 10kHz grid
530 - 1700kHz
FM/MW-version, 9kHz grid
531 - 1602kHz
LW
153 - 279kHz
MW
FM/MW/LW- version, 9kHz grid
531 - 1602kHz
FM IF
FM
FM RF
FM
87.5 - 108MHz
(65.81 - 74, 87.5 - 108MHz)
6130 D4 7109 E5 7183 B7
VCO
6131 D3 7111 A5
6181 B7 7119 B5
6182 C7 7122 B2
6183 C7 7124 C2
7101 C5 7180 B7
FM
7102 D3 7181 C7
7103 E6 7182 D7
AM IF
MW
K
AM AFC
A
MW
C
3)
AM RF
B E
SMD jumper LW
41..
MW
(not all items shown
in schematic diagram)
FM/MW/LW- and FM/MW-version
( 9kHz grid)
531 - 1602kHz
MW
FM/AM-version, 10kHz grid
530 - 1700kHz
Use Service Testprogram. By selecting the TUNER TEST test frequencies will be stored as preset frequencies automatically.
1)
If sensitivity of frequency counter is too low adjust to max. channel separation
(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)
3)
LW has to be aligned before MW.
8 - 2
( ECO6 FM/MW- and FM/MW/LW - versions with ferrite antenna)
Input frequency Input Tuned to
108MHz
87.5MHz
(65.81MHz)
1700kHz
530kHz
1602kHz
531kHz
279kHz
153kHz
1602kHz
531kHz
IC 7101
21
10.7MHz, 45mV
D
continuous wave shortcircuit
2141
to block AFC
108MHz A 108MHz
mod=1kHz
87.5MHz 87.5MHz
∆f=±22.5kHz
(65.81MHz) (65.81MHz)
98MHz, 1mV
A
98MHz
continuous wave
IC 7101
36
100nF
C
450kHz ∆f=±10kHz
IC 7101
40
V = 0.5mV
100nF
RF
connect pin 6 of
(as low as
see
IC 7101 (AM Osc.) remark 2)
possible)
with 2.2kΩ to Vcc
C
continuous wave
V = 2mV
RF
198kHz
198kHz
B LW ferrite coil
1494kHz
1494kHz
558kHz
558kHz
MW ferrite coil
1500kHz
∆f = ±30kHz 1500kHz
V as low as
RF
560kHz
560kHz
possible
MW ferrite coil
2)
RC network serves for damping the IF-filter while adjusting the other one.
Adjust Output Scope/Voltmeter
5130 8V ±0.2V
4.3V ±0.5V
check
(1.2V ±0.5V)
5123 8V ±0.2V
check 1.1V ±0.4V
5123 6.9V ±0.2V
1
check 1.1V ±0.4V
5122 8V ±0.2V
check 1.1V ±0.4V
8V ±0.2V
5123
check 1.1V ±0.4V
2 0 ± 3 mV DC
5119
2155
4
MAX
5131
1)
3
3142 152kHz ±1kHz
5111
5
5112
f
o
symmetric
5114
2
0 ± 2 mV DC
5105
2106
5104
5
2106
f
o
symmetric
5104
ECO6, general with ferrite antenna, 070799