Page 2 - Flexible Circuit Board Repairing; Notes on chip component replacement; TABLE OF CONTENTS; CAUTION
2 MZ-E501 1. SERVICING NOTE ···················································· 3 2. GENERAL ·································································· 4 3. DISASSEMBLY 3-1. Case Assy, Holder Assy ·················································· 53-2. Mechanism Deck ······················...
Page 3 - SECTION 1; NOTES ON LASER DIODE EMISSION CHECK
3 MZ-E501 * Replacement of CXD2671-205GA (IC601) used in this set requires a special tool. When repairing this device with the power on, if you remove themain board, this device stops working.In this case, you work without the device stopping by fastening thehook of the Open/Close detection switch (...
Page 4 - LOCATION AND FUNCTION OF CONTROLS; GROUP
4 MZ-E501 SECTION 2 GENERAL LOCATION AND FUNCTION OF CONTROLS >N . VOL+/– GROUP x x X 1 N> VOL+ VOL– . 3 Color Info-LED ./N> VOL +/– HOLD DISPLAY SOUND PLAYMODE RPT/ENT x GROUP HOLD 3 Color Info-LED This section is extracted frominstruction manual.
Page 5 - SECTION 3
5 MZ-E501 r Disassemble the unit in the order as shown below. Note : Follow the disassembly procedure in the numerical order given. 3-1. CASE ASSY, HOLDER ASSY SECTION 3 DISASSEMBLY Optical pick-up assy (LCX-4E) Mechanism deck Case assy, Holder assy Set Bracket assy MAIN board case assy 1 screws (1....
Page 9 - Manual; O F E J 5 E
9 MZ-E501 2. During each test, press and hold down > N key or . key for a while to move the optical pickup on the sled outer orinner perimeter. 3. Each test item is assigned with a three-digit item number. The 100th place is a major item, 10th place is a middle item, and unitplace is a minor item...
Page 10 - XX; A d r s
10 MZ-E501 3. Hereinafter, each time > N key is pressed, the reference information display changes as follows: • Press . key to go back to the previous display. • Contents of the history codes 0 XX 1 # # # # 0 XX N # # # # 0 XX N1 # # # # 0 XX N2 # # # # 0 XX R – – – – 4-6. SELF-DIAGNOSTIC DISPLA...
Page 11 - F; -7. Sound Skip Check Result Display Mode; FF 0F; RMC OK OX
11 MZ-E501 4-8. KEY CHECK MODE 4-8-1. Outline of the function This mode is used to check to make sure that each of the keys(including the slide switch) on the set operates normally.(The 1 kHzsignal is outputted from the L and R channels of head phones) 4-8-2. Setting the Key Check mode 1. Set the TE...
Page 12 - Res NV CC; VclPWM XX
12 MZ-E501 5-4. MANUAL POWER ADJUSTMENTS 5-4-1. Adjustment sequence The adjustments should be always performed in the followingsequence: 1 Vc PWM Duty (L) adjustment (item No.:762) r 2 Vc PWM Duty (H) adjustment (item No.:763) r 3 VLL PWM Duty adjustment (item No.:764) 5-4-2. Vc PWM Duty (L) adjustm...
Page 13 - VchPWM XX; Vl PWM XX; OfstOK; XXX; ADJ OK
13 MZ-E501 3. Press X key to write the adjustment value. The adjustment completion display appears as follows. LCD display 5-4-5.Electrical offset adjustment methodNote: Doing adjustment by the state that a disc does not enter. 1. Confirm the power voltage is 1.5V.2. Set to the test mode.3. Press th...
Page 14 - MO OK
14 MZ-E501 3. If NG in the overall CD adjustments, return to Reset NV and perform from the electrical offset adjustment again. LCD display XXX: NG item No. 4. If OK through the overall CD adjustments, then perform overall MO adjustments. LCD display 5. Insert MO disc in the set, and press > N key...
Page 16 - WAVEFORMS; SECTION 6
16 MZ-E501 r WAVEFORMS Note on Schematic Diagram: MAIN SECTION • All capacitors are in µ F unless otherwise noted. pF: µµ F 50 WV or less are not indicated except for electrolyticsand tantalums. • All resistors are in Ω and 1 / 4 W or less unless otherwise specified. • f : internal component. Note: ...
Page 17 - MAIN BOARD; • Signal path
17 17 MZ-E501 SI0 SCK0 S00 XCS NV 217 12 160 161 9 3 194 195 221 XRF RST PDS1 XCS NV SI0 SCK0 S00 XTEST PD S0 S MON SSB CLK SSB DATA VREF MON OFTRK MUTE XHP STB BEEP 142 RMC DTCK 167 OPR LED R PWM 163 OPR LED G PWM 224 XAVLS 13 SET KEY 1 17 WK DET 227 HOLD SW 20 RMC KEY VC PWM 164 165 VL PWM 86 FS4 ...
Page 18 - • Semiconductor; Location
18 18 MZ-E501 IC 601 IC 901 IC 301 IC 501 CSP (Chip Size Package) S801 x E E S806 GROUP S803 . S802 (INFO) >N S805 VOL+ S804 VOL– S808 HOLD OFF ON DRY BATTERY SIZE "AA" (IEC DESIGNATION LR6) 1PC, 1.5V 1-681-868- 11 (11) 11 (11) MAIN BOARD (SIDE A) * 1 2 A B C D E F G 3 4 5 6 7 8 9 10 6-2....
Page 33 - SECTION 8; MAIN
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 33 SECTION 8 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in theparts list may be different from the partsspecified in the diagrams or the componentsused on the set. • -XX, -X mean standardized parts, s...
Page 36 - MEMO
Page 37 - SERVICE MANUAL; Subject : 1. Schematic diagram and printed wiring
MZ-E501 AEP Model Hong Kong Model SERVICE MANUAL SUPPLEMENT-1 Ver 1.2 2001. 12 Subject : 1. Schematic diagram and printed wiring board are changed. (ECN-DAB01214)
Page 38 - How to distinguish the sets; Before change
2 MZ-E501 How to distinguish the sets Parts code of printed wiring board are changed. Before change After change Part No. Description 1-681-868-12 MAIN BORD Part No. Description 1-681-868-11 MAIN BORD Location of parts code on changed printed wiring board. MAIN BOARD (SIDE B) Before change: 1-681-86...
Page 39 - Signal path
3 3 MZ-E501 2-1. BLOCK DIAGRAM SECTION 2 DIAGRAMS SI0 SCK0 S00 XCS NV 217 12 160 161 9 3 194 195 221 XRF RST PDS1 XCS NV SI0 SCK0 S00 XTEST PD S0 S MON SSB CLK SSB DATA VREF MON OFTRK MUTE XHP STB BEEP 142 RMC DTCK 167 OPR LED R PWM 163 OPR LED G PWM 224 XAVLS 13 SET KEY 1 17 WK DET 227 HOLD SW 20 R...
Page 53 - SECTION 2
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 17 SECTION 2 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in theparts list may be different from the partsspecified in the diagrams or the componentsused on the set. • -XX, -X mean standardized parts, s...
Page 56 - REVISION HISTORY; Date
MZ-E501 REVISION HISTORY Clicking the version allows you to jump to the revised page.Also, clicking the version at the upper right on the revised page allows you to jump to the next revisedpage. Ver. Date Description of Revision 1.2 2001.12 Supplement-1:Change of board (1-681-868-11 → 1-681-868-12) ...