Tuner Adjustments - Sanyo DC-MM5000 (XE) Service Manual

TUNER ADJUSTMENTS

• Use a plastic screw driver for adjustments.
• MODE : ST (Stereo)
• Speaker impedance : 4 ohms
• TUNING
FM : 87.5 - 108MHz
AM : 522 - 1611 kHz (9 kHz step)
520 - 1610 kHz (10 kHz step)
CT252
L2151
L2153
1. FM
Adjusting
Step
Circuit
IF(0V)
1 FM Antenna SG=66dBuV/EMF
Adjustment
Cover
2
Voltage
2. AM
Adjusting
Step
Circuit
IF
1
Adjustment
Cover
2
Voltage
3 Tracking
J2650
D2151
R2149
D2153
C2154
R2131
J2512
J2709
Q2310
E
J2513
J2518
R2141
D2103
U2101
C2101
D2104
R2102 R2103
TP11 T2002
Antenna
Dev.
RF Level
Output Level : about 30mV at TP13, TP14, TP15
Connection
Input
Alignment voltage IC231
3-22pin(TP24,25) is 0.0±0.05V
---
---
Anntena
RF Level
Output Level : about 30mV at TP13, TP14, TP15
Connection
Input
point TP13 (L)
Loop Ant
---
---
point TP13 (L)
Loop Ant
TP12
DIP
J2501
J2610
J2510
R2101
J2710
C2310 C2310 C2310
R2114 C2117 C2117 C2117
J2520
C2170
C2312
C2318
IC231
XF222
C2302 C2302 C2302
XF221
R2802
R2205 R2304
E
J2522
XF233 TP14
: 75Ω unbalanced, Modulation : 1 kHz
: 22.5kHz(MONO), 22.5kHz(STEREO), 6.75kHz(PILOT)
: dBuV EMF
SG
Frequency
Output
98MHz
TP11 (H)
87.5MHz
TP12 (E)
108.0MHz
: IRE Loop(SG), Moduration : 1kHz 30%
: dBuV EMF
SG
Frequency
Output
450KHz
TP14 (R)
at 999kHz
TP15 (E)
TP11(H )
522kHz
TP12(E)
1611kHz
603kHz
TP14 (R)
1404kHz
TP15 (E)
- 3 -
D2467
C2502 C2502 C2502
R2503
C2504 C2504 C2506 C2504 C2506 C2506 R2504
1 10 12
C2512
C2513
24 20 13
L2502
R2519 C2515 C2515 C2515
J2503
L2501
C2521
C2522 J2505
J2704
J2614
C2453
IC241
C2454
J2511
C2452
J2615
JW241
J2617 (TO JW242)
J2618
J2514
J2619
C2314 C2314 C2314
R2458
C2308 C2308 C2308
D4406
D2452
R2309
L2451 REEL
C2322
J2713
GND
PH1
MOTOR
INI SW
PLUNGER
JW201
J2714
(F)REC SW
(TO J2715
JW401) NC
PACK SW
J2620
R4406
(R)REC SW
TP15 TP13
Adjustment Remark
Alignment voltage IC231
XF233
3-22pin is 0.0±0.05V
--- 1.35±0.10V
--- 6.50±0.50V Check Only
Adjustment Remark
Maximum
T2002
1.00±0.05V
L2153
7.10±0.50V Check Only
L2151
Maximum
CT252
IC231
JW242
(TO JW241)
R2461
R2463
R2462
R2464