Tuner Adjustments; Cd Pick-Up Maintenance - Sanyo DC-MCR300 Service Manual

TUNER ADJUSTMENTS

• Use a plastic screw driver for adjustments.
• Speaker impedance : 6 ohms
CT252
1. FM
Adjusting
Step
Circuit
1
Cover
3 Tracking FM Ant
2. AM
Adjusting
Step
Circuit
IF
1 Loop Ant
Adjustment
Cover
2
Voltage
3 Tracking Loop Ant

CD PICK-UP MAINTENANCE

About pick-up (Optical lens) Cleaning
Clean a lens with swab of the cotton which moistened it with alcohol, cleaning paper or cleaning disc appointed.
Specified cleaning disc : LC-1 (Part code : 645 026 1961 ..... manufactured by SANYO.)
Show a clean procedure in the following in reference by swab of cotton.
1. Cotton swab is wrapped with Cleaning paper.
2. Add the isopropyl alcohol.
3. Gently move the tip of cotton swab just like a draw a whirlpool from inside to outside on the surface of lens.
• MODE : ST (Stereo)
• TUNING
L2351
CN203
J2111
C2318
C2301 C2301 C2301
C2304 C2304 C2304
R2307 C2303
C2329
D2308
R2309C2312
D2330
R2321
C2436 C2436 C2436
R2318
R2316
C2317
XF211
J2307
L2313 T2001
Antenna
Dev.
RF Level
Output Level : about 30mV at TP9, TP10, TP12
Connection
Input
---
TP10 (R)
TP12 (E)
Anntena
RF Level
Output Level : about 30mV at TP9, TP10, TP12
Connection
Input
---
TP10 (R)
TP12 (E)
FM : 87.5 - 108MHz
AM : 522 - 1710 kHz (9 kHz steps)
520 - 1710 kHz (10 kHz steps)
L2353
L2302
CN201
D2102
R2417
R2401
Q2504
C2404 E
Q2509
C2406 C2406 C2406
J2305
Q2510
Q2505
E
R2522 R2522 R2522 C2507 C2507 C2507
Q2413
R2403 R2403 R2403
C2511 C2511 C2511
C2508 C2508 C2508
E
R2431
R2506 R2506 R2506 C2518 C2518 C2518
R2416 R2416 R2416 C2512
C2425
IC211
R2430
C2410 IC222
R2408
C2409
C2211
R2610 R2610 R2610
J2108
R2607 R2607 R2607
J2106
C2222
R2605 R2605 R2605
C2109 C2109 C2109
CN231
R2604 R2604 R2604 C2801 C2801 C2801
C2802 C2802 C2802
C2411 C2411 C2411
J2110
TP10 TP12 TP7
: 75Ω unbalanced direct, Modulation : 1 kHz
: ±22.5kHz(MONO), ±22.5kHz(STEREO),±6.75kHz(PILOT)
: dBuV EMF
SG
Frequency
Output
TP5 (H)
87.5MHz
TP6 (E)
108.0MHz
TP9 (L)
90.0MHz
106.0MHz
: IRE Loop(SG), Moduration : 1kHz 30%
: dBuV EMF
SG
Frequency
Output
450KHz
---
at 999kHz
TP7 (H) 522kHz
TP8 (E) 1710kHz
TP9 (L)
603kHz
1404kHz
- 2 -
TP9
R2614 R2613
TP5
TP8
J2303
R2422
C2423
R2611
J2300
J2101
R2802
J2102
TP6
Adjustment
L2313
4.30±0.50V Check Only
---
L2302
Adjustment
T2001
L2353
7.20±0.50V Check Only
---
L2351
CT252
Remark
1.00±0.05V
Maximum
Remark
Maximum
1.00±0.05V
Maximum